Add missing files from viewer-experimental

41 files changed, 13612 insertions, 0 deletions

diff --git a/indra/cmake/GLOD.cmake b/indra/cmake/GLOD.cmake
new file mode 100644
index 0000000000..77221d55ed
--- /dev/null
+++ b/indra/cmake/GLOD.cmake
@@ -0,0 +1,9 @@
+# -*- cmake -*-
+include(Prebuilt)
+
+if (NOT STANDALONE)
+  use_prebuilt_binary(GLOD)
+endif (NOT STANDALONE)
+
+set(GLOD_INCLUDE_DIR ${LIBS_PREBUILT_DIR}/include)
+set(GLOD_LIBRARIES glod)
diff --git a/indra/cmake/LLConvexDecomposition.cmake b/indra/cmake/LLConvexDecomposition.cmake
new file mode 100644
index 0000000000..ae9dc3c17a
--- /dev/null
+++ b/indra/cmake/LLConvexDecomposition.cmake
@@ -0,0 +1,16 @@
+# -*- cmake -*-
+include(Prebuilt)
+
+set(LLCONVEXDECOMP_INCLUDE_DIRS ${LIBS_PREBUILT_DIR}/include)
+  
+if (INSTALL_PROPRIETARY AND NOT STANDALONE)
+  use_prebuilt_binary(llconvexdecomposition)
+  if (WINDOWS)
+    set(LLCONVEXDECOMP_LIBRARY llconvexdecomposition)
+  else (WINDOWS)
+    set(LLCONVEXDECOMP_LIBRARY llconvexdecompositionstub)
+  endif (WINDOWS)
+else (INSTALL_PROPRIETARY AND NOT STANDALONE)
+  use_prebuilt_binary(llconvexdecompositionstub)
+  set(LLCONVEXDECOMP_LIBRARY llconvexdecompositionstub)
+endif (INSTALL_PROPRIETARY AND NOT STANDALONE)
diff --git a/indra/llmath/llmatrix3a.cpp b/indra/llmath/llmatrix3a.cpp
new file mode 100644
index 0000000000..b7468f4914
--- /dev/null
+++ b/indra/llmath/llmatrix3a.cpp
@@ -0,0 +1,140 @@
+/** 
+ * @file llvector4a.cpp
+ * @brief SIMD vector implementation
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2007-2010, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "llmath.h"
+
+static LL_ALIGN_16(const F32 M_IDENT_3A[12]) = 
+												{	1.f, 0.f, 0.f, 0.f, // Column 1
+													0.f, 1.f, 0.f, 0.f, // Column 2
+													0.f, 0.f, 1.f, 0.f }; // Column 3
+
+extern const LLMatrix3a LL_M3A_IDENTITY = *reinterpret_cast<const LLMatrix3a*> (M_IDENT_3A);
+
+void LLMatrix3a::setMul( const LLMatrix3a& lhs, const LLMatrix3a& rhs )
+{
+	const LLVector4a col0 = lhs.getColumn(0);
+	const LLVector4a col1 = lhs.getColumn(1);
+	const LLVector4a col2 = lhs.getColumn(2);
+
+	for ( int i = 0; i < 3; i++ )
+	{
+		LLVector4a xxxx = _mm_load_ss( rhs.mColumns[i].getF32ptr() );
+		xxxx.splat<0>( xxxx );
+		xxxx.mul( col0 );
+
+		{
+			LLVector4a yyyy = _mm_load_ss( rhs.mColumns[i].getF32ptr() +  1 );
+			yyyy.splat<0>( yyyy );
+			yyyy.mul( col1 ); 
+			xxxx.add( yyyy );
+		}
+
+		{
+			LLVector4a zzzz = _mm_load_ss( rhs.mColumns[i].getF32ptr() +  2 );
+			zzzz.splat<0>( zzzz );
+			zzzz.mul( col2 );
+			xxxx.add( zzzz );
+		}
+
+		xxxx.store4a( mColumns[i].getF32ptr() );
+	}
+	
+}
+
+/*static */void LLMatrix3a::batchTransform( const LLMatrix3a& xform, const LLVector4a* src, int numVectors, LLVector4a* dst )
+{
+	const LLVector4a col0 = xform.getColumn(0);
+	const LLVector4a col1 = xform.getColumn(1);
+	const LLVector4a col2 = xform.getColumn(2);
+	const LLVector4a* maxAddr = src + numVectors;
+
+	if ( numVectors & 0x1 )
+	{
+		LLVector4a xxxx = _mm_load_ss( (const F32*)src );
+		LLVector4a yyyy = _mm_load_ss( (const F32*)src + 1 );
+		LLVector4a zzzz = _mm_load_ss( (const F32*)src + 2 );
+		xxxx.splat<0>( xxxx );
+		yyyy.splat<0>( yyyy );
+		zzzz.splat<0>( zzzz );
+		xxxx.mul( col0 );
+		yyyy.mul( col1 ); 
+		zzzz.mul( col2 );
+		xxxx.add( yyyy );
+		xxxx.add( zzzz );
+		xxxx.store4a( (F32*)dst );
+		src++;
+		dst++;
+	}
+
+
+	numVectors >>= 1;
+	while ( src < maxAddr )
+	{
+		_mm_prefetch( (const char*)(src + 32 ), _MM_HINT_NTA );
+		_mm_prefetch( (const char*)(dst + 32), _MM_HINT_NTA );
+		LLVector4a xxxx = _mm_load_ss( (const F32*)src );
+		LLVector4a xxxx1= _mm_load_ss( (const F32*)(src + 1) );
+
+		xxxx.splat<0>( xxxx );
+		xxxx1.splat<0>( xxxx1 );
+		xxxx.mul( col0 );
+		xxxx1.mul( col0 );
+
+		{
+			LLVector4a yyyy = _mm_load_ss( (const F32*)src + 1 );
+			LLVector4a yyyy1 = _mm_load_ss( (const F32*)(src + 1) + 1);
+			yyyy.splat<0>( yyyy );
+			yyyy1.splat<0>( yyyy1 );
+			yyyy.mul( col1 );
+			yyyy1.mul( col1 );
+			xxxx.add( yyyy );
+			xxxx1.add( yyyy1 );
+		}
+
+		{
+			LLVector4a zzzz = _mm_load_ss( (const F32*)(src) + 2 );
+			LLVector4a zzzz1 = _mm_load_ss( (const F32*)(++src) + 2 );
+			zzzz.splat<0>( zzzz );
+			zzzz1.splat<0>( zzzz1 );
+			zzzz.mul( col2 );
+			zzzz1.mul( col2 );
+			xxxx.add( zzzz );
+			xxxx1.add( zzzz1 );
+		}
+
+		xxxx.store4a(dst->getF32ptr());
+		src++;
+		dst++;
+
+		xxxx1.store4a((F32*)dst++);
+	}
+}
diff --git a/indra/llmath/llmatrix3a.h b/indra/llmath/llmatrix3a.h
new file mode 100644
index 0000000000..56327f9f6d
--- /dev/null
+++ b/indra/llmath/llmatrix3a.h
@@ -0,0 +1,134 @@
+/** 
+ * @file llmatrix3a.h
+ * @brief LLMatrix3a class header file - memory aligned and vectorized 3x3 matrix
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2010, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef	LL_LLMATRIX3A_H
+#define	LL_LLMATRIX3A_H
+
+/////////////////////////////
+// LLMatrix3a, LLRotation
+/////////////////////////////
+// This class stores a 3x3 (technically 4x3) matrix in column-major order
+/////////////////////////////
+/////////////////////////////
+// These classes are intentionally minimal right now. If you need additional
+// functionality, please contact someone with SSE experience (e.g., Falcon or
+// Huseby).
+/////////////////////////////
+
+// LLMatrix3a is the base class for LLRotation, which should be used instead any time you're dealing with a 
+// rotation matrix.
+class LLMatrix3a
+{
+public:
+
+	// Utility function for quickly transforming an array of LLVector4a's
+	// For transforming a single LLVector4a, see LLVector4a::setRotated
+	static void batchTransform( const LLMatrix3a& xform, const LLVector4a* src, int numVectors, LLVector4a* dst );
+
+	// Utility function to obtain the identity matrix
+	static inline const LLMatrix3a& getIdentity();
+
+	//////////////////////////
+	// Ctors
+	//////////////////////////
+	
+	// Ctor
+	LLMatrix3a() {}
+
+	// Ctor for setting by columns
+	inline LLMatrix3a( const LLVector4a& c0, const LLVector4a& c1, const LLVector4a& c2 );
+
+	//////////////////////////
+	// Get/Set
+	//////////////////////////
+
+	// Loads from an LLMatrix3
+	inline void loadu(const LLMatrix3& src);
+	
+	// Set rows
+	inline void setRows(const LLVector4a& r0, const LLVector4a& r1, const LLVector4a& r2);
+	
+	// Set columns
+	inline void setColumns(const LLVector4a& c0, const LLVector4a& c1, const LLVector4a& c2);
+
+	// Get the read-only access to a specified column. Valid columns are 0-2, but the 
+	// function is unchecked. You've been warned.
+	inline const LLVector4a& getColumn(const U32 column) const;
+
+	/////////////////////////
+	// Matrix modification
+	/////////////////////////
+	
+	// Set this matrix to the product of lhs and rhs ( this = lhs * rhs )
+	void setMul( const LLMatrix3a& lhs, const LLMatrix3a& rhs );
+
+	// Set this matrix to the transpose of src
+	inline void setTranspose(const LLMatrix3a& src);
+
+	// Set this matrix to a*w + b*(1-w)
+	inline void setLerp(const LLMatrix3a& a, const LLMatrix3a& b, F32 w);
+
+	/////////////////////////
+	// Matrix inspection
+	/////////////////////////
+
+	// Sets all 4 elements in 'dest' to the determinant of this matrix.
+	// If you will be using the determinant in subsequent ops with LLVector4a, use this version
+	inline void getDeterminant( LLVector4a& dest ) const;
+
+	// Returns the determinant as an LLSimdScalar. Use this if you will be using the determinant
+	// primary for scalar operations.
+	inline LLSimdScalar getDeterminant() const;
+
+	// Returns nonzero if rows 0-2 and colums 0-2 contain no NaN or INF values. Row 3 is ignored
+	inline LLBool32 isFinite() const;
+
+	// Returns true if this matrix is equal to 'rhs' up to 'tolerance'
+	inline bool isApproximatelyEqual( const LLMatrix3a& rhs, F32 tolerance = F_APPROXIMATELY_ZERO ) const;
+
+protected:
+
+	LLVector4a mColumns[3];
+
+};
+
+class LLRotation : public LLMatrix3a
+{
+public:
+	
+	LLRotation() {}
+	
+	// Returns true if this rotation is orthonormal with det ~= 1
+	inline bool isOkRotation() const;		
+};
+
+#endif
diff --git a/indra/llmath/llmatrix3a.inl b/indra/llmath/llmatrix3a.inl
new file mode 100644
index 0000000000..65fd949f78
--- /dev/null
+++ b/indra/llmath/llmatrix3a.inl
@@ -0,0 +1,125 @@
+/** 
+ * @file llmatrix3a.inl
+ * @brief LLMatrix3a inline definitions
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2010, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "llmatrix3a.h"
+#include "m3math.h"
+
+inline LLMatrix3a::LLMatrix3a( const LLVector4a& c0, const LLVector4a& c1, const LLVector4a& c2 )
+{
+	setColumns( c0, c1, c2 );
+}
+
+inline void LLMatrix3a::loadu(const LLMatrix3& src)
+{
+	mColumns[0].load3(src.mMatrix[0]);
+	mColumns[1].load3(src.mMatrix[1]);
+	mColumns[2].load3(src.mMatrix[2]);
+}
+
+inline void LLMatrix3a::setRows(const LLVector4a& r0, const LLVector4a& r1, const LLVector4a& r2)
+{
+	mColumns[0] = r0;
+	mColumns[1] = r1;
+	mColumns[2] = r2;
+	setTranspose( *this );
+}
+
+inline void LLMatrix3a::setColumns(const LLVector4a& c0, const LLVector4a& c1, const LLVector4a& c2)
+{
+	mColumns[0] = c0;
+	mColumns[1] = c1;
+	mColumns[2] = c2;
+}
+
+inline void LLMatrix3a::setTranspose(const LLMatrix3a& src)
+{
+	const LLQuad srcCol0 = src.mColumns[0];
+	const LLQuad srcCol1 = src.mColumns[1];
+	const LLQuad unpacklo = _mm_unpacklo_ps( srcCol0, srcCol1 );
+	mColumns[0] = _mm_movelh_ps( unpacklo, src.mColumns[2] );
+	mColumns[1] = _mm_shuffle_ps( _mm_movehl_ps( srcCol0, unpacklo ), src.mColumns[2], _MM_SHUFFLE(0, 1, 1, 0) );
+	mColumns[2] = _mm_shuffle_ps( _mm_unpackhi_ps( srcCol0, srcCol1 ), src.mColumns[2], _MM_SHUFFLE(0, 2, 1, 0) );
+}
+
+inline const LLVector4a& LLMatrix3a::getColumn(const U32 column) const
+{
+	llassert( column < 3 );
+	return mColumns[column];
+}
+
+inline void LLMatrix3a::setLerp(const LLMatrix3a& a, const LLMatrix3a& b, F32 w)
+{
+	mColumns[0].setLerp( a.mColumns[0], b.mColumns[0], w );
+	mColumns[1].setLerp( a.mColumns[1], b.mColumns[1], w );
+	mColumns[2].setLerp( a.mColumns[2], b.mColumns[2], w );
+}
+
+inline LLBool32 LLMatrix3a::isFinite() const
+{
+	return mColumns[0].isFinite3() && mColumns[1].isFinite3() && mColumns[2].isFinite3();
+}
+
+inline void LLMatrix3a::getDeterminant( LLVector4a& dest ) const
+{
+	LLVector4a col1xcol2; col1xcol2.setCross3( mColumns[1], mColumns[2] );
+	dest.setAllDot3( col1xcol2, mColumns[0] );
+}
+
+inline LLSimdScalar LLMatrix3a::getDeterminant() const
+{
+	LLVector4a col1xcol2; col1xcol2.setCross3( mColumns[1], mColumns[2] );
+	return col1xcol2.dot3( mColumns[0] );
+}
+
+inline bool LLMatrix3a::isApproximatelyEqual( const LLMatrix3a& rhs, F32 tolerance /*= F_APPROXIMATELY_ZERO*/ ) const
+{
+	return rhs.getColumn(0).equals3(mColumns[0], tolerance) 
+		&& rhs.getColumn(1).equals3(mColumns[1], tolerance) 
+		&& rhs.getColumn(2).equals3(mColumns[2], tolerance); 
+}
+
+inline const LLMatrix3a& LLMatrix3a::getIdentity()
+{
+	extern const LLMatrix3a LL_M3A_IDENTITY;
+	return LL_M3A_IDENTITY;
+}
+
+inline bool LLRotation::isOkRotation() const
+{
+	LLMatrix3a transpose; transpose.setTranspose( *this );
+	LLMatrix3a product; product.setMul( *this, transpose );
+
+	LLSimdScalar detMinusOne = getDeterminant() - 1.f;
+
+	return product.isApproximatelyEqual( LLMatrix3a::getIdentity() ) && (detMinusOne.getAbs() < F_APPROXIMATELY_ZERO);
+}
+
diff --git a/indra/llmath/llmatrix4a.h b/indra/llmath/llmatrix4a.h
new file mode 100644
index 0000000000..0ead045d04
--- /dev/null
+++ b/indra/llmath/llmatrix4a.h
@@ -0,0 +1,149 @@
+/** 
+ * @file llmatrix4a.h
+ * @brief LLMatrix4a class header file - memory aligned and vectorized 4x4 matrix
+ *
+ * $LicenseInfo:firstyear=2007&license=viewergpl$
+ * 
+ * Copyright (c) 2007-2010, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef	LL_LLMATRIX4A_H
+#define	LL_LLMATRIX4A_H
+
+#include "llvector4a.h"
+#include "m4math.h"
+#include "m3math.h"
+
+class LLMatrix4a
+{
+public:
+	LLVector4a mMatrix[4];
+
+	inline void clear()
+	{
+		mMatrix[0].clear();
+		mMatrix[1].clear();
+		mMatrix[2].clear();
+		mMatrix[3].clear();
+	}
+
+	inline void loadu(const LLMatrix4& src)
+	{
+		mMatrix[0] = _mm_loadu_ps(src.mMatrix[0]);
+		mMatrix[1] = _mm_loadu_ps(src.mMatrix[1]);
+		mMatrix[2] = _mm_loadu_ps(src.mMatrix[2]);
+		mMatrix[3] = _mm_loadu_ps(src.mMatrix[3]);
+		
+	}
+
+	inline void loadu(const LLMatrix3& src)
+	{
+		mMatrix[0].load3(src.mMatrix[0]);
+		mMatrix[1].load3(src.mMatrix[1]);
+		mMatrix[2].load3(src.mMatrix[2]);
+		mMatrix[3].set(0,0,0,1.f);
+	}
+
+	inline void add(const LLMatrix4a& rhs)
+	{
+		mMatrix[0].add(rhs.mMatrix[0]);
+		mMatrix[1].add(rhs.mMatrix[1]);
+		mMatrix[2].add(rhs.mMatrix[2]);
+		mMatrix[3].add(rhs.mMatrix[3]);
+	}
+
+	inline void setRows(const LLVector4a& r0, const LLVector4a& r1, const LLVector4a& r2)
+	{
+		mMatrix[0] = r0;
+		mMatrix[1] = r1;
+		mMatrix[2] = r2;
+	}
+
+	inline void setMul(const LLMatrix4a& m, const F32 s)
+	{
+		mMatrix[0].setMul(m.mMatrix[0], s);
+		mMatrix[1].setMul(m.mMatrix[1], s);
+		mMatrix[2].setMul(m.mMatrix[2], s);
+		mMatrix[3].setMul(m.mMatrix[3], s);
+	}
+
+	inline void setLerp(const LLMatrix4a& a, const LLMatrix4a& b, F32 w)
+	{
+		LLVector4a d0,d1,d2,d3;
+		d0.setSub(b.mMatrix[0], a.mMatrix[0]);
+		d1.setSub(b.mMatrix[1], a.mMatrix[1]);
+		d2.setSub(b.mMatrix[2], a.mMatrix[2]);
+		d3.setSub(b.mMatrix[3], a.mMatrix[3]);
+
+		// this = a + d*w
+		
+		d0.mul(w);
+		d1.mul(w);
+		d2.mul(w);
+		d3.mul(w);
+
+		mMatrix[0].setAdd(a.mMatrix[0],d0);
+		mMatrix[1].setAdd(a.mMatrix[1],d1);
+		mMatrix[2].setAdd(a.mMatrix[2],d2);
+		mMatrix[3].setAdd(a.mMatrix[3],d3);
+	}
+
+	inline void rotate(const LLVector4a& v, LLVector4a& res)
+	{
+		res = _mm_shuffle_ps(v, v, _MM_SHUFFLE(0, 0, 0, 0));
+		res.mul(mMatrix[0]);
+		
+		LLVector4a y;
+		y = _mm_shuffle_ps(v, v, _MM_SHUFFLE(1, 1, 1, 1));
+		y.mul(mMatrix[1]);
+
+		LLVector4a z;
+		z = _mm_shuffle_ps(v, v, _MM_SHUFFLE(2, 2, 2, 2));
+		z.mul(mMatrix[2]);
+
+		res.add(y);
+		res.add(z);
+	}
+
+	inline void affineTransform(const LLVector4a& v, LLVector4a& res)
+	{
+		LLVector4a x,y,z;
+
+		x = _mm_shuffle_ps(v, v, _MM_SHUFFLE(0, 0, 0, 0));
+		y = _mm_shuffle_ps(v, v, _MM_SHUFFLE(1, 1, 1, 1));
+		z = _mm_shuffle_ps(v, v, _MM_SHUFFLE(2, 2, 2, 2));
+		
+		x.mul(mMatrix[0]);
+		y.mul(mMatrix[1]);
+		z.mul(mMatrix[2]);
+
+		x.add(y);
+		z.add(mMatrix[3]);
+		res.setAdd(x,z);
+	}
+};
+
+#endif
diff --git a/indra/llmath/llquaternion2.h b/indra/llmath/llquaternion2.h
new file mode 100644
index 0000000000..dbb4afe312
--- /dev/null
+++ b/indra/llmath/llquaternion2.h
@@ -0,0 +1,111 @@
+/** 
+ * @file llquaternion2.h
+ * @brief LLQuaternion2 class header file - SIMD-enabled quaternion class
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2010, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef	LL_QUATERNION2_H
+#define	LL_QUATERNION2_H
+
+/////////////////////////////
+// LLQuaternion2
+/////////////////////////////
+// This class stores a quaternion x*i + y*j + z*k + w in <x, y, z, w> order
+// (i.e., w in high order element of vector)
+/////////////////////////////
+/////////////////////////////
+// These classes are intentionally minimal right now. If you need additional
+// functionality, please contact someone with SSE experience (e.g., Falcon or
+// Huseby).
+/////////////////////////////
+#include "llquaternion.h"
+
+class LLQuaternion2
+{
+public:
+
+	//////////////////////////
+	// Ctors
+	//////////////////////////
+	
+	// Ctor
+	LLQuaternion2() {}
+
+	// Ctor from LLQuaternion
+	explicit LLQuaternion2( const class LLQuaternion& quat );
+
+	//////////////////////////
+	// Get/Set
+	//////////////////////////
+
+	// Load from an LLQuaternion
+	inline void operator=( const LLQuaternion& quat )
+	{
+		mQ.loadua( quat.mQ );
+	}
+
+	// Return the internal LLVector4a representation of the quaternion
+	inline const LLVector4a& getVector4a() const;
+	inline LLVector4a& getVector4aRw();
+
+	/////////////////////////
+	// Quaternion modification
+	/////////////////////////
+	
+	// Set this quaternion to the conjugate of src
+	inline void setConjugate(const LLQuaternion2& src);
+
+	// Renormalizes the quaternion. Assumes it has nonzero length.
+	inline void normalize();
+
+	// Quantize this quaternion to 8 bit precision
+	inline void quantize8();
+
+	// Quantize this quaternion to 16 bit precision
+	inline void quantize16();
+
+	/////////////////////////
+	// Quaternion inspection
+	/////////////////////////
+
+	// Return true if this quaternion is equal to 'rhs'. 
+	// Note! Quaternions exhibit "double-cover", so any rotation has two equally valid
+	// quaternion representations and they will NOT compare equal.
+	inline bool equals(const LLQuaternion2& rhs, F32 tolerance = F_APPROXIMATELY_ZERO ) const;
+
+	// Return true if all components are finite and the quaternion is normalized
+	inline bool isOkRotation() const;
+
+protected:
+
+	LLVector4a mQ;
+
+};
+
+#endif
diff --git a/indra/llmath/llquaternion2.inl b/indra/llmath/llquaternion2.inl
new file mode 100644
index 0000000000..9a4274d6a4
--- /dev/null
+++ b/indra/llmath/llquaternion2.inl
@@ -0,0 +1,108 @@
+/** 
+ * @file llquaternion2.inl
+ * @brief LLQuaternion2 inline definitions
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2010, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "llquaternion2.h"
+
+static const LLQuad LL_V4A_PLUS_ONE = {1.f, 1.f, 1.f, 1.f};
+static const LLQuad LL_V4A_MINUS_ONE = {-1.f, -1.f, -1.f, -1.f};
+
+// Ctor from LLQuaternion
+inline LLQuaternion2::LLQuaternion2( const LLQuaternion& quat )
+{
+	mQ.set(quat.mQ[VX], quat.mQ[VY], quat.mQ[VZ], quat.mQ[VW]);
+}
+
+//////////////////////////
+// Get/Set
+//////////////////////////
+
+// Return the internal LLVector4a representation of the quaternion
+inline const LLVector4a& LLQuaternion2::getVector4a() const
+{
+	return mQ;
+}
+
+inline LLVector4a& LLQuaternion2::getVector4aRw()
+{
+	return mQ;
+}
+
+/////////////////////////
+// Quaternion modification
+/////////////////////////
+
+// Set this quaternion to the conjugate of src
+inline void LLQuaternion2::setConjugate(const LLQuaternion2& src)
+{
+	static LL_ALIGN_16( const U32 F_QUAT_INV_MASK_4A[4] ) = { 0x80000000, 0x80000000, 0x80000000, 0x00000000 };
+	mQ = _mm_xor_ps(src.mQ, *reinterpret_cast<const LLQuad*>(&F_QUAT_INV_MASK_4A));	
+}
+
+// Renormalizes the quaternion. Assumes it has nonzero length.
+inline void LLQuaternion2::normalize()
+{
+	mQ.normalize4();
+}
+
+// Quantize this quaternion to 8 bit precision
+inline void LLQuaternion2::quantize8()
+{
+	mQ.quantize8( LL_V4A_MINUS_ONE, LL_V4A_PLUS_ONE );
+	normalize();
+}
+
+// Quantize this quaternion to 16 bit precision
+inline void LLQuaternion2::quantize16()
+{
+	mQ.quantize16( LL_V4A_MINUS_ONE, LL_V4A_PLUS_ONE );
+	normalize();
+}
+
+
+/////////////////////////
+// Quaternion inspection
+/////////////////////////
+
+// Return true if this quaternion is equal to 'rhs'. 
+// Note! Quaternions exhibit "double-cover", so any rotation has two equally valid
+// quaternion representations and they will NOT compare equal.
+inline bool LLQuaternion2::equals(const LLQuaternion2 &rhs, F32 tolerance/* = F_APPROXIMATELY_ZERO*/) const
+{
+	return mQ.equals4(rhs.mQ, tolerance);
+}
+
+// Return true if all components are finite and the quaternion is normalized
+inline bool LLQuaternion2::isOkRotation() const
+{
+	return mQ.isFinite4() && mQ.isNormalized4();
+}
+
diff --git a/indra/llmath/llsimdmath.h b/indra/llmath/llsimdmath.h
new file mode 100644
index 0000000000..9377bfdb53
--- /dev/null
+++ b/indra/llmath/llsimdmath.h
@@ -0,0 +1,95 @@
+/** 
+ * @file llsimdmath.h
+ * @brief Common header for SIMD-based math library (llvector4a, llmatrix3a, etc.)
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2007-2010, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef	LL_SIMD_MATH_H
+#define	LL_SIMD_MATH_H
+
+#ifndef LLMATH_H
+#error "Please include llmath.h before this file."
+#endif
+
+#if ( ( LL_DARWIN || LL_LINUX ) && !(__SSE2__) ) || ( LL_WINDOWS && ( _M_IX86_FP < 2 ) )
+#error SSE2 not enabled. LLVector4a and related class will not compile.
+#endif
+
+template <typename T> T* LL_NEXT_ALIGNED_ADDRESS(T* address) 
+{ 
+	return reinterpret_cast<T*>(
+		(reinterpret_cast<U32>(address) + 0xF) & ~0xF);
+}
+
+template <typename T> T* LL_NEXT_ALIGNED_ADDRESS_64(T* address) 
+{ 
+	return reinterpret_cast<T*>(
+		(reinterpret_cast<U32>(address) + 0x3F) & ~0x3F);
+}
+
+#if LL_LINUX || LL_DARWIN
+
+#define			LL_ALIGN_PREFIX(x)
+#define			LL_ALIGN_POSTFIX(x)		__attribute__((aligned(x)))
+
+#elif LL_WINDOWS
+
+#define			LL_ALIGN_PREFIX(x)		__declspec(align(x))
+#define			LL_ALIGN_POSTFIX(x)
+
+#else
+#error "LL_ALIGN_PREFIX and LL_ALIGN_POSTFIX undefined"
+#endif
+
+#define LL_ALIGN_16(var) LL_ALIGN_PREFIX(16) var LL_ALIGN_POSTFIX(16)
+
+
+
+#include <xmmintrin.h>
+#include <emmintrin.h>
+
+#include "llsimdtypes.h"
+#include "llsimdtypes.inl"
+
+class LLMatrix3a;
+class LLRotation;
+class LLMatrix3;
+
+#include "llquaternion.h"
+
+#include "llvector4logical.h"
+#include "llvector4a.h"
+#include "llmatrix3a.h"
+#include "llquaternion2.h"
+#include "llvector4a.inl"
+#include "llmatrix3a.inl"
+#include "llquaternion2.inl"
+
+
+#endif //LL_SIMD_MATH_H
diff --git a/indra/llmath/llsimdtypes.h b/indra/llmath/llsimdtypes.h
new file mode 100644
index 0000000000..82e318c8bf
--- /dev/null
+++ b/indra/llmath/llsimdtypes.h
@@ -0,0 +1,130 @@
+/** 
+ * @file llsimdtypes.h
+ * @brief Declaration of basic SIMD math related types
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2007-2010, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_SIMD_TYPES_H
+#define LL_SIMD_TYPES_H
+
+#ifndef LL_SIMD_MATH_H
+#error "Please include llmath.h before this file."
+#endif
+
+typedef __m128	LLQuad;
+
+
+#if LL_WINDOWS
+#pragma warning(push)
+#pragma warning( disable : 4800 3 ) // Disable warning about casting int to bool for this class.
+#if defined(_MSC_VER) && (_MSC_VER < 1500)
+// VC++ 2005 is missing these intrinsics
+// __forceinline is MSVC specific and attempts to override compiler inlining judgment. This is so
+// even in debug builds this call is a NOP.
+__forceinline const __m128 _mm_castsi128_ps( const __m128i a ) { return reinterpret_cast<const __m128&>(a); }
+__forceinline const __m128i _mm_castps_si128( const __m128 a ) { return reinterpret_cast<const __m128i&>(a); }
+#endif // _MSC_VER
+
+#endif // LL_WINDOWS
+
+class LLBool32
+{
+public:
+	inline LLBool32() {}
+	inline LLBool32(int rhs) : m_bool(rhs) {}
+	inline LLBool32(unsigned int rhs) : m_bool(rhs) {}
+	inline LLBool32(bool rhs) { m_bool = static_cast<const int>(rhs); }
+	inline LLBool32& operator= (bool rhs) { m_bool = (int)rhs; return *this; }
+	inline bool operator== (bool rhs) const { return static_cast<const bool&>(m_bool) == rhs; }
+	inline bool operator!= (bool rhs) const { return !operator==(rhs); }
+	inline operator bool() const { return static_cast<const bool&>(m_bool); }
+
+private:
+	int m_bool;
+};
+
+#if LL_WINDOWS
+#pragma warning(pop)
+#endif
+
+class LLSimdScalar
+{
+public:
+	inline LLSimdScalar() {}
+	inline LLSimdScalar(LLQuad q) 
+	{ 
+		mQ = q; 
+	}
+
+	inline LLSimdScalar(F32 f) 
+	{ 
+		mQ = _mm_set_ss(f); 
+	}
+
+	static inline const LLSimdScalar& getZero()
+	{
+		extern const LLQuad F_ZERO_4A;
+		return reinterpret_cast<const LLSimdScalar&>(F_ZERO_4A);
+	}
+
+	inline F32 getF32() const;
+
+	inline LLBool32 isApproximatelyEqual(const LLSimdScalar& rhs, F32 tolerance = F_APPROXIMATELY_ZERO) const;
+
+	inline LLSimdScalar getAbs() const;
+
+	inline void setMax( const LLSimdScalar& a, const LLSimdScalar& b );
+	
+	inline void setMin( const LLSimdScalar& a, const LLSimdScalar& b );
+
+	inline LLSimdScalar& operator=(F32 rhs);
+
+	inline LLSimdScalar& operator+=(const LLSimdScalar& rhs);
+
+	inline LLSimdScalar& operator-=(const LLSimdScalar& rhs);
+
+	inline LLSimdScalar& operator*=(const LLSimdScalar& rhs);
+
+	inline LLSimdScalar& operator/=(const LLSimdScalar& rhs);
+
+	inline operator LLQuad() const
+	{ 
+		return mQ; 
+	}
+	
+	inline const LLQuad& getQuad() const 
+	{ 
+		return mQ; 
+	}
+
+private:
+	LLQuad mQ;
+};
+
+#endif //LL_SIMD_TYPES_H
diff --git a/indra/llmath/llsimdtypes.inl b/indra/llmath/llsimdtypes.inl
new file mode 100644
index 0000000000..69c858e310
--- /dev/null
+++ b/indra/llmath/llsimdtypes.inl
@@ -0,0 +1,163 @@
+/** 
+ * @file llsimdtypes.inl
+ * @brief Inlined definitions of basic SIMD math related types
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2007-2010, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+
+
+
+//////////////////
+// LLSimdScalar
+//////////////////
+
+inline LLSimdScalar operator+(const LLSimdScalar& a, const LLSimdScalar& b)
+{
+	LLSimdScalar t(a);
+	t += b;
+	return t;
+}
+
+inline LLSimdScalar operator-(const LLSimdScalar& a, const LLSimdScalar& b)
+{
+	LLSimdScalar t(a);
+	t -= b;
+	return t;
+}
+
+inline LLSimdScalar operator*(const LLSimdScalar& a, const LLSimdScalar& b)
+{
+	LLSimdScalar t(a);
+	t *= b;
+	return t;
+}
+
+inline LLSimdScalar operator/(const LLSimdScalar& a, const LLSimdScalar& b)
+{
+	LLSimdScalar t(a);
+	t /= b;
+	return t;
+}
+
+inline LLSimdScalar operator-(const LLSimdScalar& a)
+{
+	static LL_ALIGN_16(const U32 signMask[4]) = {0x80000000, 0x80000000, 0x80000000, 0x80000000 };
+	return _mm_xor_ps(*reinterpret_cast<const LLQuad*>(signMask), a);
+}
+
+inline LLBool32 operator==(const LLSimdScalar& a, const LLSimdScalar& b)
+{
+	return _mm_comieq_ss(a, b);
+}
+
+inline LLBool32 operator!=(const LLSimdScalar& a, const LLSimdScalar& b)
+{
+	return _mm_comineq_ss(a, b);
+}
+
+inline LLBool32 operator<(const LLSimdScalar& a, const LLSimdScalar& b)
+{
+	return _mm_comilt_ss(a, b);
+}
+
+inline LLBool32 operator<=(const LLSimdScalar& a, const LLSimdScalar& b)
+{
+	return _mm_comile_ss(a, b);
+}
+
+inline LLBool32 operator>(const LLSimdScalar& a, const LLSimdScalar& b)
+{
+	return _mm_comigt_ss(a, b);
+}
+
+inline LLBool32 operator>=(const LLSimdScalar& a, const LLSimdScalar& b)
+{
+	return _mm_comige_ss(a, b);
+}
+
+inline LLBool32 LLSimdScalar::isApproximatelyEqual(const LLSimdScalar& rhs, F32 tolerance /* = F_APPROXIMATELY_ZERO */) const
+{
+	const LLSimdScalar tol( tolerance );
+	const LLSimdScalar diff = _mm_sub_ss( mQ, rhs.mQ );
+	const LLSimdScalar absDiff = diff.getAbs();
+	return absDiff <= tol;
+}
+
+inline void LLSimdScalar::setMax( const LLSimdScalar& a, const LLSimdScalar& b )
+{
+	mQ = _mm_max_ss( a, b );
+}
+
+inline void LLSimdScalar::setMin( const LLSimdScalar& a, const LLSimdScalar& b )
+{
+	mQ = _mm_min_ss( a, b );
+}
+
+inline LLSimdScalar& LLSimdScalar::operator=(F32 rhs) 
+{ 
+	mQ = _mm_set_ss(rhs); 
+	return *this; 
+}
+
+inline LLSimdScalar& LLSimdScalar::operator+=(const LLSimdScalar& rhs) 
+{
+	mQ = _mm_add_ss( mQ, rhs );
+	return *this;
+}
+
+inline LLSimdScalar& LLSimdScalar::operator-=(const LLSimdScalar& rhs)
+{
+	mQ = _mm_sub_ss( mQ, rhs );
+	return *this;
+}
+
+inline LLSimdScalar& LLSimdScalar::operator*=(const LLSimdScalar& rhs)
+{
+	mQ = _mm_mul_ss( mQ, rhs );
+	return *this;
+}
+
+inline LLSimdScalar& LLSimdScalar::operator/=(const LLSimdScalar& rhs)
+{
+	mQ = _mm_div_ss( mQ, rhs );
+	return *this;
+}
+
+inline LLSimdScalar LLSimdScalar::getAbs() const
+{
+	static const LL_ALIGN_16(U32 F_ABS_MASK_4A[4]) = { 0x7FFFFFFF, 0x7FFFFFFF, 0x7FFFFFFF, 0x7FFFFFFF };
+	return _mm_and_ps( mQ, *reinterpret_cast<const LLQuad*>(F_ABS_MASK_4A));
+}
+
+inline F32 LLSimdScalar::getF32() const
+{ 
+	F32 ret; 
+	_mm_store_ss(&ret, mQ); 
+	return ret; 
+}
diff --git a/indra/llmath/llvector4a.cpp b/indra/llmath/llvector4a.cpp
new file mode 100644
index 0000000000..b62c17302f
--- /dev/null
+++ b/indra/llmath/llvector4a.cpp
@@ -0,0 +1,228 @@
+/** 
+ * @file llvector4a.cpp
+ * @brief SIMD vector implementation
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2007-2010, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "llmath.h"
+#include "llquantize.h"
+
+extern const LLQuad F_ZERO_4A		= { 0, 0, 0, 0 };
+extern const LLQuad F_APPROXIMATELY_ZERO_4A = { 
+	F_APPROXIMATELY_ZERO,
+	F_APPROXIMATELY_ZERO,
+	F_APPROXIMATELY_ZERO,
+	F_APPROXIMATELY_ZERO
+};
+
+extern const LLVector4a LL_V4A_ZERO = reinterpret_cast<const LLVector4a&> ( F_ZERO_4A );
+extern const LLVector4a LL_V4A_EPSILON = reinterpret_cast<const LLVector4a&> ( F_APPROXIMATELY_ZERO_4A );
+
+/*static */void LLVector4a::memcpyNonAliased16(F32* __restrict dst, const F32* __restrict src, size_t bytes)
+{
+	assert(src != NULL);
+	assert(dst != NULL);
+	assert(bytes > 0);
+	assert((bytes % sizeof(F32))== 0); 
+	
+	F32* end = dst + (bytes / sizeof(F32) );
+
+	if (bytes > 64)
+	{
+		F32* begin_64 = LL_NEXT_ALIGNED_ADDRESS_64(dst);
+		
+		//at least 64 (16*4) bytes before the end of the destination, switch to 16 byte copies
+		F32* end_64 = end-16;
+		
+		_mm_prefetch((char*)begin_64, _MM_HINT_NTA);
+		_mm_prefetch((char*)begin_64 + 64, _MM_HINT_NTA);
+		_mm_prefetch((char*)begin_64 + 128, _MM_HINT_NTA);
+		_mm_prefetch((char*)begin_64 + 192, _MM_HINT_NTA);
+		
+		while (dst < begin_64)
+		{
+			copy4a(dst, src);
+			dst += 4;
+			src += 4;
+		}
+		
+		while (dst < end_64)
+		{
+			_mm_prefetch((char*)src + 512, _MM_HINT_NTA);
+			_mm_prefetch((char*)dst + 512, _MM_HINT_NTA);
+			copy4a(dst, src);
+			copy4a(dst+4, src+4);
+			copy4a(dst+8, src+8);
+			copy4a(dst+12, src+12);
+			
+			dst += 16;
+			src += 16;
+		}
+	}
+
+	while (dst < end)
+	{
+		copy4a(dst, src);
+		dst += 4;
+		src += 4;
+	}
+}
+
+void LLVector4a::setRotated( const LLRotation& rot, const LLVector4a& vec )
+{
+	const LLVector4a col0 = rot.getColumn(0);
+	const LLVector4a col1 = rot.getColumn(1);
+	const LLVector4a col2 = rot.getColumn(2);
+
+	LLVector4a result = _mm_load_ss( vec.getF32ptr() );
+	result.splat<0>( result );
+	result.mul( col0 );
+
+	{
+		LLVector4a yyyy = _mm_load_ss( vec.getF32ptr() +  1 );
+		yyyy.splat<0>( yyyy );
+		yyyy.mul( col1 ); 
+		result.add( yyyy );
+	}
+
+	{
+		LLVector4a zzzz = _mm_load_ss( vec.getF32ptr() +  2 );
+		zzzz.splat<0>( zzzz );
+		zzzz.mul( col2 );
+		result.add( zzzz );
+	}
+
+	*this = result;
+}
+
+void LLVector4a::setRotated( const LLQuaternion2& quat, const LLVector4a& vec )
+{
+	const LLVector4a& quatVec = quat.getVector4a();
+	LLVector4a temp; temp.setCross3(quatVec, vec);
+	temp.add( temp );
+	
+	const LLVector4a realPart( quatVec.getScalarAt<3>() );
+	LLVector4a tempTimesReal; tempTimesReal.setMul( temp, realPart );
+
+	mQ = vec;
+	add( tempTimesReal );
+	
+	LLVector4a imagCrossTemp; imagCrossTemp.setCross3( quatVec, temp );
+	add(imagCrossTemp);
+}
+
+void LLVector4a::quantize8( const LLVector4a& low, const LLVector4a& high )
+{
+	LLVector4a val(mQ);
+	LLVector4a delta; delta.setSub( high, low );
+
+	{
+		val.clamp(low, high);
+		val.sub(low);
+
+		// 8-bit quantization means we can do with just 12 bits of reciprocal accuracy
+		const LLVector4a oneOverDelta = _mm_rcp_ps(delta.mQ);
+// 		{
+// 			static LL_ALIGN_16( const F32 F_TWO_4A[4] ) = { 2.f, 2.f, 2.f, 2.f };
+// 			LLVector4a two; two.load4a( F_TWO_4A );
+// 
+// 			// Here we use _mm_rcp_ps plus one round of newton-raphson
+// 			// We wish to find 'x' such that x = 1/delta
+// 			// As a first approximation, we take x0 = _mm_rcp_ps(delta)
+// 			// Then x1 = 2 * x0 - a * x0^2 or x1 = x0 * ( 2 - a * x0 )
+// 			// See Intel AP-803 http://ompf.org/!/Intel_application_note_AP-803.pdf
+// 			const LLVector4a recipApprox = _mm_rcp_ps(delta.mQ);
+// 			oneOverDelta.setMul( delta, recipApprox );
+// 			oneOverDelta.setSub( two, oneOverDelta );
+// 			oneOverDelta.mul( recipApprox );
+// 		}
+
+		val.mul(oneOverDelta);
+		val.mul(*reinterpret_cast<const LLVector4a*>(F_U8MAX_4A));
+	}
+
+	val = _mm_cvtepi32_ps(_mm_cvtps_epi32( val.mQ ));
+
+	{
+		val.mul(*reinterpret_cast<const LLVector4a*>(F_OOU8MAX_4A));
+		val.mul(delta);
+		val.add(low);
+	}
+
+	{
+		LLVector4a maxError; maxError.setMul(delta, *reinterpret_cast<const LLVector4a*>(F_OOU8MAX_4A));
+		LLVector4a absVal; absVal.setAbs( val );
+		setSelectWithMask( absVal.lessThan( maxError ), F_ZERO_4A, val );
+	}	
+}
+
+void LLVector4a::quantize16( const LLVector4a& low, const LLVector4a& high )
+{
+	LLVector4a val(mQ);
+	LLVector4a delta; delta.setSub( high, low );
+
+	{
+		val.clamp(low, high);
+		val.sub(low);
+
+		// 16-bit quantization means we need a round of Newton-Raphson
+		LLVector4a oneOverDelta;
+		{
+			static LL_ALIGN_16( const F32 F_TWO_4A[4] ) = { 2.f, 2.f, 2.f, 2.f };
+			LLVector4a two; two.load4a( F_TWO_4A );
+
+			// Here we use _mm_rcp_ps plus one round of newton-raphson
+			// We wish to find 'x' such that x = 1/delta
+			// As a first approximation, we take x0 = _mm_rcp_ps(delta)
+			// Then x1 = 2 * x0 - a * x0^2 or x1 = x0 * ( 2 - a * x0 )
+			// See Intel AP-803 http://ompf.org/!/Intel_application_note_AP-803.pdf
+			const LLVector4a recipApprox = _mm_rcp_ps(delta.mQ);
+			oneOverDelta.setMul( delta, recipApprox );
+			oneOverDelta.setSub( two, oneOverDelta );
+			oneOverDelta.mul( recipApprox );
+		}
+
+		val.mul(oneOverDelta);
+		val.mul(*reinterpret_cast<const LLVector4a*>(F_U16MAX_4A));
+	}
+
+	val = _mm_cvtepi32_ps(_mm_cvtps_epi32( val.mQ ));
+
+	{
+		val.mul(*reinterpret_cast<const LLVector4a*>(F_OOU16MAX_4A));
+		val.mul(delta);
+		val.add(low);
+	}
+
+	{
+		LLVector4a maxError; maxError.setMul(delta, *reinterpret_cast<const LLVector4a*>(F_OOU16MAX_4A));
+		LLVector4a absVal; absVal.setAbs( val );
+		setSelectWithMask( absVal.lessThan( maxError ), F_ZERO_4A, val );
+	}	
+}
diff --git a/indra/llmath/llvector4a.h b/indra/llmath/llvector4a.h
new file mode 100644
index 0000000000..76a3e999ce
--- /dev/null
+++ b/indra/llmath/llvector4a.h
@@ -0,0 +1,331 @@
+/** 
+ * @file llvector4a.h
+ * @brief LLVector4a class header file - memory aligned and vectorized 4 component vector
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2007-2010, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef	LL_LLVECTOR4A_H
+#define	LL_LLVECTOR4A_H
+
+
+class LLRotation;
+
+#include <assert.h>
+#include "llpreprocessor.h"
+
+///////////////////////////////////
+// FIRST TIME USERS PLEASE READ
+//////////////////////////////////
+// This is just the beginning of LLVector4a. There are many more useful functions
+// yet to be implemented. For example, setNeg to negate a vector, rotate() to apply
+// a matrix rotation, various functions to manipulate only the X, Y, and Z elements
+// and many others (including a whole variety of accessors). So if you don't see a 
+// function here that you need, please contact Falcon or someone else with SSE 
+// experience (Richard, I think, has some and davep has a little as of the time 
+// of this writing, July 08, 2010) about getting it implemented before you resort to
+// LLVector3/LLVector4. 
+/////////////////////////////////
+
+class LLVector4a
+{
+public:
+
+	///////////////////////////////////
+	// STATIC METHODS
+	///////////////////////////////////
+	
+	// Call initClass() at startup to avoid 15,000+ cycle penalties from denormalized numbers
+	static void initClass()
+	{
+		_MM_SET_FLUSH_ZERO_MODE(_MM_FLUSH_ZERO_ON);
+		_MM_SET_ROUNDING_MODE(_MM_ROUND_NEAREST);
+	}
+
+	// Return a vector of all zeros
+	static inline const LLVector4a& getZero()
+	{
+		extern const LLVector4a LL_V4A_ZERO;
+		return LL_V4A_ZERO;
+	}
+
+	// Return a vector of all epsilon, where epsilon is a small float suitable for approximate equality checks
+	static inline const LLVector4a& getEpsilon()
+	{
+		extern const LLVector4a LL_V4A_EPSILON;
+		return LL_V4A_EPSILON;
+	}
+
+	// Copy 16 bytes from src to dst. Source and destination must be 16-byte aligned
+	static inline void copy4a(F32* dst, const F32* src)
+	{
+		_mm_store_ps(dst, _mm_load_ps(src));
+	}
+
+	// Copy words 16-byte blocks from src to dst. Source and destination must not overlap. 
+	static void memcpyNonAliased16(F32* __restrict dst, const F32* __restrict src, size_t bytes);
+
+	////////////////////////////////////
+	// CONSTRUCTORS 
+	////////////////////////////////////
+	
+	LLVector4a()
+	{ //DO NOT INITIALIZE -- The overhead is completely unnecessary
+	}
+	
+	LLVector4a(F32 x, F32 y, F32 z, F32 w = 0.f)
+	{
+		set(x,y,z,w);
+	}
+	
+	LLVector4a(F32 x)
+	{
+		splat(x);
+	}
+	
+	LLVector4a(const LLSimdScalar& x)
+	{
+		splat(x);
+	}
+
+	LLVector4a(LLQuad q)
+	{
+		mQ = q;
+	}
+
+	////////////////////////////////////
+	// LOAD/STORE
+	////////////////////////////////////
+	
+	// Load from 16-byte aligned src array (preferred method of loading)
+	inline void load4a(const F32* src);
+	
+	// Load from unaligned src array (NB: Significantly slower than load4a)
+	inline void loadua(const F32* src);
+	
+	// Load only three floats beginning at address 'src'. Slowest method.
+	inline void load3(const F32* src);
+	
+	// Store to a 16-byte aligned memory address
+	inline void store4a(F32* dst) const;
+	
+	////////////////////////////////////
+	// BASIC GET/SET 
+	////////////////////////////////////
+	
+	// Return a "this" as an F32 pointer. Do not use unless you have a very good reason.  (Not sure? Ask Falcon)
+	inline F32* getF32ptr();
+	
+	// Return a "this" as a const F32 pointer. Do not use unless you have a very good reason.  (Not sure? Ask Falcon)
+	inline const F32* const getF32ptr() const;
+	
+	// Read-only access a single float in this vector. Do not use in proximity to any function call that manipulates
+	// the data at the whole vector level or you will incur a substantial penalty. Consider using the splat functions instead
+	inline F32 operator[](const S32 idx) const;
+
+	// Prefer this method for read-only access to a single element. Prefer the templated version if the elem is known at compile time.
+	inline LLSimdScalar getScalarAt(const S32 idx) const;
+
+	// Prefer this method for read-only access to a single element. Prefer the templated version if the elem is known at compile time.
+	template <int N> LL_FORCE_INLINE LLSimdScalar getScalarAt() const;
+	template <> LL_FORCE_INLINE LLSimdScalar getScalarAt<0>() const;
+
+	// Set to an x, y, z and optional w provided
+	inline void set(F32 x, F32 y, F32 z, F32 w = 0.f);
+	
+	// Set to all zeros. This is preferred to using ::getZero()
+	inline void clear();
+	
+	// Set all elements to 'x'
+	inline void splat(const F32 x);
+
+	// Set all elements to 'x'
+	inline void splat(const LLSimdScalar& x);
+	
+	// Set all 4 elements to element N of src, with N known at compile time
+	template <int N> void splat(const LLVector4a& src);
+	
+	// Set all 4 elements to element i of v, with i NOT known at compile time
+	inline void splat(const LLVector4a& v, U32 i);
+	
+	// Select bits from sourceIfTrue and sourceIfFalse according to bits in mask
+	inline void setSelectWithMask( const LLVector4Logical& mask, const LLVector4a& sourceIfTrue, const LLVector4a& sourceIfFalse );
+	
+	////////////////////////////////////
+	// ALGEBRAIC
+	////////////////////////////////////
+	
+	// Set this to the element-wise (a + b)
+	inline void setAdd(const LLVector4a& a, const LLVector4a& b);
+	
+	// Set this to element-wise (a - b)
+	inline void setSub(const LLVector4a& a, const LLVector4a& b);
+	
+	// Set this to element-wise multiply (a * b)
+	inline void setMul(const LLVector4a& a, const LLVector4a& b);
+	
+	// Set this to element-wise quotient (a / b)
+	inline void setDiv(const LLVector4a& a, const LLVector4a& b);
+	
+	// Set this to the element-wise absolute value of src
+	inline void setAbs(const LLVector4a& src);
+	
+	// Add to each component in this vector the corresponding component in rhs
+	inline void add(const LLVector4a& rhs);
+	
+	// Subtract from each component in this vector the corresponding component in rhs
+	inline void sub(const LLVector4a& rhs);
+	
+	// Multiply each component in this vector by the corresponding component in rhs
+	inline void mul(const LLVector4a& rhs);
+	
+	// Divide each component in this vector by the corresponding component in rhs
+	inline void div(const LLVector4a& rhs);
+	
+	// Multiply this vector by x in a scalar fashion
+	inline void mul(const F32 x);
+
+	// Set this to (a x b) (geometric cross-product)
+	inline void setCross3(const LLVector4a& a, const LLVector4a& b);
+	
+	// Set all elements to the dot product of the x, y, and z elements in a and b
+	inline void setAllDot3(const LLVector4a& a, const LLVector4a& b);
+
+	// Set all elements to the dot product of the x, y, z, and w elements in a and b
+	inline void setAllDot4(const LLVector4a& a, const LLVector4a& b);
+
+	// Return the 3D dot product of this vector and b
+	inline LLSimdScalar dot3(const LLVector4a& b) const;
+
+	// Return the 4D dot product of this vector and b
+	inline LLSimdScalar dot4(const LLVector4a& b) const;
+
+	// Normalize this vector with respect to the x, y, and z components only. Accurate to 22 bites of precision. W component is destroyed
+	// Note that this does not consider zero length vectors!
+	inline void normalize3();
+
+	// Same as normalize3() but with respect to all 4 components
+	inline void normalize4();
+
+	// Same as normalize3(), but returns length as a SIMD scalar
+	inline LLSimdScalar normalize3withLength();
+
+	// Normalize this vector with respect to the x, y, and z components only. Accurate only to 10-12 bits of precision. W component is destroyed
+	// Note that this does not consider zero length vectors!
+	inline void normalize3fast();
+
+	// Return true if this vector is normalized with respect to x,y,z up to tolerance
+	inline LLBool32 isNormalized3( F32 tolerance = 1e-3 ) const;
+
+	// Return true if this vector is normalized with respect to all components up to tolerance
+	inline LLBool32 isNormalized4( F32 tolerance = 1e-3 ) const;
+
+	// Set all elements to the length of vector 'v' 
+	inline void setAllLength3( const LLVector4a& v );
+
+	// Get this vector's length
+	inline LLSimdScalar getLength3() const;
+	
+	// Set the components of this vector to the minimum of the corresponding components of lhs and rhs
+	inline void setMin(const LLVector4a& lhs, const LLVector4a& rhs);
+	
+	// Set the components of this vector to the maximum of the corresponding components of lhs and rhs
+	inline void setMax(const LLVector4a& lhs, const LLVector4a& rhs);
+	
+	// Clamps this vector to be within the component-wise range low to high (inclusive)
+	inline void clamp( const LLVector4a& low, const LLVector4a& high );
+
+	// Set this to  (c * lhs) + rhs * ( 1 - c)
+	inline void setLerp(const LLVector4a& lhs, const LLVector4a& rhs, F32 c);
+	
+	// Return true (nonzero) if x, y, z (and w for Finite4) are all finite floats
+	inline LLBool32 isFinite3() const;	
+	inline LLBool32 isFinite4() const;
+
+	// Set this vector to 'vec' rotated by the LLRotation or LLQuaternion2 provided
+	void setRotated( const LLRotation& rot, const LLVector4a& vec );
+	void setRotated( const class LLQuaternion2& quat, const LLVector4a& vec );
+
+	// Set this vector to 'vec' rotated by the INVERSE of the LLRotation or LLQuaternion2 provided
+	inline void setRotatedInv( const LLRotation& rot, const LLVector4a& vec );
+	inline void setRotatedInv( const class LLQuaternion2& quat, const LLVector4a& vec );
+
+	// Quantize this vector to 8 or 16 bit precision
+	void quantize8( const LLVector4a& low, const LLVector4a& high );
+	void quantize16( const LLVector4a& low, const LLVector4a& high );
+
+	////////////////////////////////////
+	// LOGICAL
+	////////////////////////////////////	
+	// The functions in this section will compare the elements in this vector
+	// to those in rhs and return an LLVector4Logical with all bits set in elements
+	// where the comparison was true and all bits unset in elements where the comparison
+	// was false. See llvector4logica.h
+	////////////////////////////////////
+	// WARNING: Other than equals3 and equals4, these functions do NOT account
+	// for floating point tolerance. You should include the appropriate tolerance
+	// in the inputs.
+	////////////////////////////////////
+	
+	inline LLVector4Logical greaterThan(const LLVector4a& rhs) const;
+
+	inline LLVector4Logical lessThan(const LLVector4a& rhs) const;
+	
+	inline LLVector4Logical greaterEqual(const LLVector4a& rhs) const;
+
+	inline LLVector4Logical lessEqual(const LLVector4a& rhs) const;
+	
+	inline LLVector4Logical equal(const LLVector4a& rhs) const;
+
+	// Returns true if this and rhs are componentwise equal up to the specified absolute tolerance
+	inline bool equals4(const LLVector4a& rhs, F32 tolerance = F_APPROXIMATELY_ZERO ) const;
+
+	inline bool equals3(const LLVector4a& rhs, F32 tolerance = F_APPROXIMATELY_ZERO ) const;
+
+	////////////////////////////////////
+	// OPERATORS
+	////////////////////////////////////	
+	
+	// Do NOT add aditional operators without consulting someone with SSE experience
+	inline const LLVector4a& operator= ( const LLVector4a& rhs );
+	
+	inline const LLVector4a& operator= ( const LLQuad& rhs );
+
+	inline operator LLQuad() const;	
+
+private:
+	LLQuad mQ;
+};
+
+inline void update_min_max(LLVector4a& min, LLVector4a& max, const LLVector4a& p)
+{
+	min.setMin(min, p);
+	max.setMax(max, p);
+}
+
+#endif
diff --git a/indra/llmath/llvector4a.inl b/indra/llmath/llvector4a.inl
new file mode 100644
index 0000000000..e52b550883
--- /dev/null
+++ b/indra/llmath/llvector4a.inl
@@ -0,0 +1,599 @@
+/** 
+ * @file llvector4a.inl
+ * @brief LLVector4a inline function implementations
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2007-2010, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+////////////////////////////////////
+// LOAD/STORE
+////////////////////////////////////
+
+// Load from 16-byte aligned src array (preferred method of loading)
+inline void LLVector4a::load4a(const F32* src)
+{
+	mQ = _mm_load_ps(src);
+}
+
+// Load from unaligned src array (NB: Significantly slower than load4a)
+inline void LLVector4a::loadua(const F32* src)
+{
+	mQ = _mm_loadu_ps(src);
+}
+
+// Load only three floats beginning at address 'src'. Slowest method.
+inline void LLVector4a::load3(const F32* src)
+{
+	// mQ = { 0.f, src[2], src[1], src[0] } = { W, Z, Y, X }
+	// NB: This differs from the convention of { Z, Y, X, W }
+	mQ = _mm_set_ps(0.f, src[2], src[1], src[0]);
+}	
+
+// Store to a 16-byte aligned memory address
+inline void LLVector4a::store4a(F32* dst) const
+{
+	_mm_store_ps(dst, mQ);
+}
+
+////////////////////////////////////
+// BASIC GET/SET 
+////////////////////////////////////
+
+// Return a "this" as an F32 pointer. Do not use unless you have a very good reason.  (Not sure? Ask Falcon)
+F32* LLVector4a::getF32ptr()
+{
+	return (F32*) &mQ;
+}
+
+// Return a "this" as a const F32 pointer. Do not use unless you have a very good reason.  (Not sure? Ask Falcon)
+const F32* const LLVector4a::getF32ptr() const
+{
+	return (const F32* const) &mQ;
+}
+
+// Read-only access a single float in this vector. Do not use in proximity to any function call that manipulates
+// the data at the whole vector level or you will incur a substantial penalty. Consider using the splat functions instead
+inline F32 LLVector4a::operator[](const S32 idx) const
+{
+	return ((F32*)&mQ)[idx];
+}	
+
+// Prefer this method for read-only access to a single element. Prefer the templated version if the elem is known at compile time.
+inline LLSimdScalar LLVector4a::getScalarAt(const S32 idx) const
+{
+	// Return appropriate LLQuad. It will be cast to LLSimdScalar automatically (should be effectively a nop)
+	switch (idx)
+	{
+		case 0:
+			return mQ;
+		case 1:
+			return _mm_shuffle_ps(mQ, mQ, _MM_SHUFFLE(1, 1, 1, 1));
+		case 2:
+			return _mm_shuffle_ps(mQ, mQ, _MM_SHUFFLE(2, 2, 2, 2));
+		case 3:
+		default:
+			return _mm_shuffle_ps(mQ, mQ, _MM_SHUFFLE(3, 3, 3, 3));
+	}
+}
+
+// Prefer this method for read-only access to a single element. Prefer the templated version if the elem is known at compile time.
+template <int N> LL_FORCE_INLINE LLSimdScalar LLVector4a::getScalarAt() const
+{
+	return _mm_shuffle_ps(mQ, mQ, _MM_SHUFFLE(N, N, N, N));
+}
+
+template<> LL_FORCE_INLINE LLSimdScalar LLVector4a::getScalarAt<0>() const
+{
+	return mQ;
+}
+
+// Set to an x, y, z and optional w provided
+inline void LLVector4a::set(F32 x, F32 y, F32 z, F32 w)
+{
+	mQ = _mm_set_ps(w, z, y, x);
+}
+
+// Set to all zeros
+inline void LLVector4a::clear()
+{
+	mQ = LLVector4a::getZero().mQ;
+}
+
+inline void LLVector4a::splat(const F32 x)
+{
+	mQ = _mm_set1_ps(x);	
+}
+
+inline void LLVector4a::splat(const LLSimdScalar& x)
+{
+	mQ = _mm_shuffle_ps( x.getQuad(), x.getQuad(), _MM_SHUFFLE(0,0,0,0) );
+}
+
+// Set all 4 elements to element N of src, with N known at compile time
+template <int N> void LLVector4a::splat(const LLVector4a& src)
+{
+	mQ = _mm_shuffle_ps(src.mQ, src.mQ, _MM_SHUFFLE(N, N, N, N) );
+}
+
+// Set all 4 elements to element i of v, with i NOT known at compile time
+inline void LLVector4a::splat(const LLVector4a& v, U32 i)
+{
+	switch (i)
+	{
+		case 0:
+			mQ = _mm_shuffle_ps(v.mQ, v.mQ, _MM_SHUFFLE(0, 0, 0, 0));
+			break;
+		case 1:
+			mQ = _mm_shuffle_ps(v.mQ, v.mQ, _MM_SHUFFLE(1, 1, 1, 1));
+			break;
+		case 2:
+			mQ = _mm_shuffle_ps(v.mQ, v.mQ, _MM_SHUFFLE(2, 2, 2, 2));
+			break;
+		case 3:
+			mQ = _mm_shuffle_ps(v.mQ, v.mQ, _MM_SHUFFLE(3, 3, 3, 3));
+			break;
+	}
+}
+
+// Select bits from sourceIfTrue and sourceIfFalse according to bits in mask
+inline void LLVector4a::setSelectWithMask( const LLVector4Logical& mask, const LLVector4a& sourceIfTrue, const LLVector4a& sourceIfFalse )
+{
+	// ((( sourceIfTrue ^ sourceIfFalse ) & mask) ^ sourceIfFalse )
+	// E.g., sourceIfFalse = 1010b, sourceIfTrue = 0101b, mask = 1100b
+	// (sourceIfTrue ^ sourceIfFalse) = 1111b --> & mask = 1100b --> ^ sourceIfFalse = 0110b, 
+	// as expected (01 from sourceIfTrue, 10 from sourceIfFalse)
+	// Courtesy of Mark++, http://markplusplus.wordpress.com/2007/03/14/fast-sse-select-operation/
+	mQ = _mm_xor_ps( sourceIfFalse, _mm_and_ps( mask, _mm_xor_ps( sourceIfTrue, sourceIfFalse ) ) );
+}
+
+////////////////////////////////////
+// ALGEBRAIC
+////////////////////////////////////
+
+// Set this to the element-wise (a + b)
+inline void LLVector4a::setAdd(const LLVector4a& a, const LLVector4a& b)
+{
+	mQ = _mm_add_ps(a.mQ, b.mQ);
+}
+
+// Set this to element-wise (a - b)
+inline void LLVector4a::setSub(const LLVector4a& a, const LLVector4a& b)
+{
+	mQ = _mm_sub_ps(a.mQ, b.mQ);
+}
+
+// Set this to element-wise multiply (a * b)
+inline void LLVector4a::setMul(const LLVector4a& a, const LLVector4a& b)
+{
+	mQ = _mm_mul_ps(a.mQ, b.mQ);
+}
+
+// Set this to element-wise quotient (a / b)
+inline void LLVector4a::setDiv(const LLVector4a& a, const LLVector4a& b)
+{
+	mQ = _mm_div_ps( a.mQ, b.mQ );
+}
+
+// Set this to the element-wise absolute value of src
+inline void LLVector4a::setAbs(const LLVector4a& src)
+{
+	static const LL_ALIGN_16(U32 F_ABS_MASK_4A[4]) = { 0x7FFFFFFF, 0x7FFFFFFF, 0x7FFFFFFF, 0x7FFFFFFF };
+	mQ = _mm_and_ps(src.mQ, *reinterpret_cast<const LLQuad*>(F_ABS_MASK_4A));
+}
+
+// Add to each component in this vector the corresponding component in rhs
+inline void LLVector4a::add(const LLVector4a& rhs)
+{
+	mQ = _mm_add_ps(mQ, rhs.mQ);	
+}
+
+// Subtract from each component in this vector the corresponding component in rhs
+inline void LLVector4a::sub(const LLVector4a& rhs)
+{
+	mQ = _mm_sub_ps(mQ, rhs.mQ);
+}
+
+// Multiply each component in this vector by the corresponding component in rhs
+inline void LLVector4a::mul(const LLVector4a& rhs)
+{
+	mQ = _mm_mul_ps(mQ, rhs.mQ);	
+}
+
+// Divide each component in this vector by the corresponding component in rhs
+inline void LLVector4a::div(const LLVector4a& rhs)
+{
+	// TODO: Check accuracy, maybe add divFast
+	mQ = _mm_div_ps(mQ, rhs.mQ);
+}
+
+// Multiply this vector by x in a scalar fashion
+inline void LLVector4a::mul(const F32 x) 
+{
+	LLVector4a t;
+	t.splat(x);
+	
+	mQ = _mm_mul_ps(mQ, t.mQ);
+}
+
+// Set this to (a x b) (geometric cross-product)
+inline void LLVector4a::setCross3(const LLVector4a& a, const LLVector4a& b)
+{
+	// Vectors are stored in memory in w, z, y, x order from high to low
+	// Set vector1 = { a[W], a[X], a[Z], a[Y] }
+	const LLQuad vector1 = _mm_shuffle_ps( a.mQ, a.mQ, _MM_SHUFFLE( 3, 0, 2, 1 ));
+	// Set vector2 = { b[W], b[Y], b[X], b[Z] }
+	const LLQuad vector2 = _mm_shuffle_ps( b.mQ, b.mQ, _MM_SHUFFLE( 3, 1, 0, 2 ));
+	// mQ = { a[W]*b[W], a[X]*b[Y], a[Z]*b[X], a[Y]*b[Z] }
+	mQ = _mm_mul_ps( vector1, vector2 );
+	// vector3 = { a[W], a[Y], a[X], a[Z] }
+	const LLQuad vector3 = _mm_shuffle_ps( a.mQ, a.mQ, _MM_SHUFFLE( 3, 1, 0, 2 ));
+	// vector4 = { b[W], b[X], b[Z], b[Y] }
+	const LLQuad vector4 = _mm_shuffle_ps( b.mQ, b.mQ, _MM_SHUFFLE( 3, 0, 2, 1 ));
+	// mQ = { 0, a[X]*b[Y] - a[Y]*b[X], a[Z]*b[X] - a[X]*b[Z], a[Y]*b[Z] - a[Z]*b[Y] }
+	mQ = _mm_sub_ps( mQ, _mm_mul_ps( vector3, vector4 ));
+}
+
+/* This function works, but may be slightly slower than the one below on older machines
+ inline void LLVector4a::setAllDot3(const LLVector4a& a, const LLVector4a& b)
+ {
+ // ab = { a[W]*b[W], a[Z]*b[Z], a[Y]*b[Y], a[X]*b[X] }
+ const LLQuad ab = _mm_mul_ps( a.mQ, b.mQ );
+ // yzxw = { a[W]*b[W], a[Z]*b[Z], a[X]*b[X], a[Y]*b[Y] }
+ const LLQuad wzxy = _mm_shuffle_ps( ab, ab, _MM_SHUFFLE(3, 2, 0, 1 ));
+ // xPlusY = { 2*a[W]*b[W], 2 * a[Z] * b[Z], a[Y]*b[Y] + a[X] * b[X], a[X] * b[X] + a[Y] * b[Y] }
+ const LLQuad xPlusY = _mm_add_ps(ab, wzxy);
+ // xPlusYSplat = { a[Y]*b[Y] + a[X] * b[X], a[X] * b[X] + a[Y] * b[Y], a[Y]*b[Y] + a[X] * b[X], a[X] * b[X] + a[Y] * b[Y] } 
+ const LLQuad xPlusYSplat = _mm_movelh_ps(xPlusY, xPlusY);
+ // zSplat = { a[Z]*b[Z], a[Z]*b[Z], a[Z]*b[Z], a[Z]*b[Z] }
+ const LLQuad zSplat = _mm_shuffle_ps( ab, ab, _MM_SHUFFLE( 2, 2, 2, 2 ));
+ // mQ = { a[Z] * b[Z] + a[Y] * b[Y] + a[X] * b[X], same, same, same }
+ mQ = _mm_add_ps(zSplat, xPlusYSplat);
+ }*/
+
+// Set all elements to the dot product of the x, y, and z elements in a and b
+inline void LLVector4a::setAllDot3(const LLVector4a& a, const LLVector4a& b)
+{
+	// ab = { a[W]*b[W], a[Z]*b[Z], a[Y]*b[Y], a[X]*b[X] }
+	const LLQuad ab = _mm_mul_ps( a.mQ, b.mQ );
+	// yzxw = { a[W]*b[W], a[Z]*b[Z], a[X]*b[X], a[Y]*b[Y] }
+	const __m128i wzxy = _mm_shuffle_epi32(_mm_castps_si128(ab), _MM_SHUFFLE(3, 2, 0, 1 ));
+	// xPlusY = { 2*a[W]*b[W], 2 * a[Z] * b[Z], a[Y]*b[Y] + a[X] * b[X], a[X] * b[X] + a[Y] * b[Y] }
+	const LLQuad xPlusY = _mm_add_ps(ab, _mm_castsi128_ps(wzxy));
+	// xPlusYSplat = { a[Y]*b[Y] + a[X] * b[X], a[X] * b[X] + a[Y] * b[Y], a[Y]*b[Y] + a[X] * b[X], a[X] * b[X] + a[Y] * b[Y] } 
+	const LLQuad xPlusYSplat = _mm_movelh_ps(xPlusY, xPlusY);
+	// zSplat = { a[Z]*b[Z], a[Z]*b[Z], a[Z]*b[Z], a[Z]*b[Z] }
+	const __m128i zSplat = _mm_shuffle_epi32(_mm_castps_si128(ab), _MM_SHUFFLE( 2, 2, 2, 2 ));
+	// mQ = { a[Z] * b[Z] + a[Y] * b[Y] + a[X] * b[X], same, same, same }
+	mQ = _mm_add_ps(_mm_castsi128_ps(zSplat), xPlusYSplat);
+}
+
+// Set all elements to the dot product of the x, y, z, and w elements in a and b
+inline void LLVector4a::setAllDot4(const LLVector4a& a, const LLVector4a& b)
+{
+	// ab = { a[W]*b[W], a[Z]*b[Z], a[Y]*b[Y], a[X]*b[X] }
+	const LLQuad ab = _mm_mul_ps( a.mQ, b.mQ );
+	// yzxw = { a[W]*b[W], a[Z]*b[Z], a[X]*b[X], a[Y]*b[Y] }
+	const __m128i zwxy = _mm_shuffle_epi32(_mm_castps_si128(ab), _MM_SHUFFLE(2, 3, 0, 1 ));
+	// zPlusWandXplusY = { a[W]*b[W] + a[Z]*b[Z], a[Z] * b[Z] + a[W]*b[W], a[Y]*b[Y] + a[X] * b[X], a[X] * b[X] + a[Y] * b[Y] }
+	const LLQuad zPlusWandXplusY = _mm_add_ps(ab, _mm_castsi128_ps(zwxy));
+	// xPlusYSplat = { a[Y]*b[Y] + a[X] * b[X], a[X] * b[X] + a[Y] * b[Y], a[Y]*b[Y] + a[X] * b[X], a[X] * b[X] + a[Y] * b[Y] } 
+	const LLQuad xPlusYSplat = _mm_movelh_ps(zPlusWandXplusY, zPlusWandXplusY);
+	const LLQuad zPlusWSplat = _mm_movehl_ps(zPlusWandXplusY, zPlusWandXplusY);
+
+	// mQ = { a[W]*b[W] + a[Z] * b[Z] + a[Y] * b[Y] + a[X] * b[X], same, same, same }
+	mQ = _mm_add_ps(xPlusYSplat, zPlusWSplat);
+}
+
+// Return the 3D dot product of this vector and b
+inline LLSimdScalar LLVector4a::dot3(const LLVector4a& b) const
+{
+	const LLQuad ab = _mm_mul_ps( mQ, b.mQ );
+	const LLQuad splatY = _mm_castsi128_ps( _mm_shuffle_epi32( _mm_castps_si128(ab), _MM_SHUFFLE(1, 1, 1, 1) ) );
+	const LLQuad splatZ = _mm_castsi128_ps( _mm_shuffle_epi32( _mm_castps_si128(ab), _MM_SHUFFLE(2, 2, 2, 2) ) );
+	const LLQuad xPlusY = _mm_add_ps( ab, splatY );
+	return _mm_add_ps( xPlusY, splatZ );	
+}
+
+// Return the 4D dot product of this vector and b
+inline LLSimdScalar LLVector4a::dot4(const LLVector4a& b) const
+{
+	// ab = { w, z, y, x }
+ 	const LLQuad ab = _mm_mul_ps( mQ, b.mQ );
+ 	// upperProdsInLowerElems = { y, x, y, x }
+	const LLQuad upperProdsInLowerElems = _mm_movehl_ps( ab, ab );
+	// sumOfPairs = { w+y, z+x, 2y, 2x }
+ 	const LLQuad sumOfPairs = _mm_add_ps( upperProdsInLowerElems, ab );
+	// shuffled = { z+x, z+x, z+x, z+x }
+	const LLQuad shuffled = _mm_castsi128_ps( _mm_shuffle_epi32( _mm_castps_si128( sumOfPairs ), _MM_SHUFFLE(1, 1, 1, 1) ) );
+	return _mm_add_ss( sumOfPairs, shuffled );
+}
+
+// Normalize this vector with respect to the x, y, and z components only. Accurate to 22 bites of precision. W component is destroyed
+// Note that this does not consider zero length vectors!
+inline void LLVector4a::normalize3()
+{
+	// lenSqrd = a dot a
+	LLVector4a lenSqrd; lenSqrd.setAllDot3( *this, *this );
+	// rsqrt = approximate reciprocal square (i.e., { ~1/len(a)^2, ~1/len(a)^2, ~1/len(a)^2, ~1/len(a)^2 }
+	const LLQuad rsqrt = _mm_rsqrt_ps(lenSqrd.mQ);
+	static const LLQuad half = { 0.5f, 0.5f, 0.5f, 0.5f };
+	static const LLQuad three = {3.f, 3.f, 3.f, 3.f };
+	// Now we do one round of Newton-Raphson approximation to get full accuracy
+	// According to the Newton-Raphson method, given a first 'w' for the root of f(x) = 1/x^2 - a (i.e., x = 1/sqrt(a))
+	// the next better approximation w[i+1] = w - f(w)/f'(w) = w - (1/w^2 - a)/(-2*w^(-3))
+	// w[i+1] = w + 0.5 * (1/w^2 - a) * w^3 = w + 0.5 * (w - a*w^3) = 1.5 * w - 0.5 * a * w^3
+	// = 0.5 * w * (3 - a*w^2)
+	// Our first approx is w = rsqrt. We need out = a * w[i+1] (this is the input vector 'a', not the 'a' from the above formula
+	// which is actually lenSqrd). So out = a * [0.5*rsqrt * (3 - lenSqrd*rsqrt*rsqrt)]
+	const LLQuad AtimesRsqrt = _mm_mul_ps( lenSqrd.mQ, rsqrt );
+	const LLQuad AtimesRsqrtTimesRsqrt = _mm_mul_ps( AtimesRsqrt, rsqrt );
+	const LLQuad threeMinusAtimesRsqrtTimesRsqrt = _mm_sub_ps(three, AtimesRsqrtTimesRsqrt );
+	const LLQuad nrApprox = _mm_mul_ps(half, _mm_mul_ps(rsqrt, threeMinusAtimesRsqrtTimesRsqrt));
+	mQ = _mm_mul_ps( mQ, nrApprox );
+}
+
+// Normalize this vector with respect to all components. Accurate to 22 bites of precision.
+// Note that this does not consider zero length vectors!
+inline void LLVector4a::normalize4()
+{
+	// lenSqrd = a dot a
+	LLVector4a lenSqrd; lenSqrd.setAllDot4( *this, *this );
+	// rsqrt = approximate reciprocal square (i.e., { ~1/len(a)^2, ~1/len(a)^2, ~1/len(a)^2, ~1/len(a)^2 }
+	const LLQuad rsqrt = _mm_rsqrt_ps(lenSqrd.mQ);
+	static const LLQuad half = { 0.5f, 0.5f, 0.5f, 0.5f };
+	static const LLQuad three = {3.f, 3.f, 3.f, 3.f };
+	// Now we do one round of Newton-Raphson approximation to get full accuracy
+	// According to the Newton-Raphson method, given a first 'w' for the root of f(x) = 1/x^2 - a (i.e., x = 1/sqrt(a))
+	// the next better approximation w[i+1] = w - f(w)/f'(w) = w - (1/w^2 - a)/(-2*w^(-3))
+	// w[i+1] = w + 0.5 * (1/w^2 - a) * w^3 = w + 0.5 * (w - a*w^3) = 1.5 * w - 0.5 * a * w^3
+	// = 0.5 * w * (3 - a*w^2)
+	// Our first approx is w = rsqrt. We need out = a * w[i+1] (this is the input vector 'a', not the 'a' from the above formula
+	// which is actually lenSqrd). So out = a * [0.5*rsqrt * (3 - lenSqrd*rsqrt*rsqrt)]
+	const LLQuad AtimesRsqrt = _mm_mul_ps( lenSqrd.mQ, rsqrt );
+	const LLQuad AtimesRsqrtTimesRsqrt = _mm_mul_ps( AtimesRsqrt, rsqrt );
+	const LLQuad threeMinusAtimesRsqrtTimesRsqrt = _mm_sub_ps(three, AtimesRsqrtTimesRsqrt );
+	const LLQuad nrApprox = _mm_mul_ps(half, _mm_mul_ps(rsqrt, threeMinusAtimesRsqrtTimesRsqrt));
+	mQ = _mm_mul_ps( mQ, nrApprox );
+}
+
+// Normalize this vector with respect to the x, y, and z components only. Accurate to 22 bites of precision. W component is destroyed
+// Note that this does not consider zero length vectors!
+inline LLSimdScalar LLVector4a::normalize3withLength()
+{
+	// lenSqrd = a dot a
+	LLVector4a lenSqrd; lenSqrd.setAllDot3( *this, *this );
+	// rsqrt = approximate reciprocal square (i.e., { ~1/len(a)^2, ~1/len(a)^2, ~1/len(a)^2, ~1/len(a)^2 }
+	const LLQuad rsqrt = _mm_rsqrt_ps(lenSqrd.mQ);
+	static const LLQuad half = { 0.5f, 0.5f, 0.5f, 0.5f };
+	static const LLQuad three = {3.f, 3.f, 3.f, 3.f };
+	// Now we do one round of Newton-Raphson approximation to get full accuracy
+	// According to the Newton-Raphson method, given a first 'w' for the root of f(x) = 1/x^2 - a (i.e., x = 1/sqrt(a))
+	// the next better approximation w[i+1] = w - f(w)/f'(w) = w - (1/w^2 - a)/(-2*w^(-3))
+	// w[i+1] = w + 0.5 * (1/w^2 - a) * w^3 = w + 0.5 * (w - a*w^3) = 1.5 * w - 0.5 * a * w^3
+	// = 0.5 * w * (3 - a*w^2)
+	// Our first approx is w = rsqrt. We need out = a * w[i+1] (this is the input vector 'a', not the 'a' from the above formula
+	// which is actually lenSqrd). So out = a * [0.5*rsqrt * (3 - lenSqrd*rsqrt*rsqrt)]
+	const LLQuad AtimesRsqrt = _mm_mul_ps( lenSqrd.mQ, rsqrt );
+	const LLQuad AtimesRsqrtTimesRsqrt = _mm_mul_ps( AtimesRsqrt, rsqrt );
+	const LLQuad threeMinusAtimesRsqrtTimesRsqrt = _mm_sub_ps(three, AtimesRsqrtTimesRsqrt );
+	const LLQuad nrApprox = _mm_mul_ps(half, _mm_mul_ps(rsqrt, threeMinusAtimesRsqrtTimesRsqrt));
+	mQ = _mm_mul_ps( mQ, nrApprox );
+	return _mm_sqrt_ss(lenSqrd);
+}
+
+// Normalize this vector with respect to the x, y, and z components only. Accurate only to 10-12 bits of precision. W component is destroyed
+// Note that this does not consider zero length vectors!
+inline void LLVector4a::normalize3fast()
+{
+	LLVector4a lenSqrd; lenSqrd.setAllDot3( *this, *this );
+	const LLQuad approxRsqrt = _mm_rsqrt_ps(lenSqrd.mQ);
+	mQ = _mm_mul_ps( mQ, approxRsqrt );
+}
+
+// Return true if this vector is normalized with respect to x,y,z up to tolerance
+inline LLBool32 LLVector4a::isNormalized3( F32 tolerance ) const
+{
+	static LL_ALIGN_16(const U32 ones[4]) = { 0x3f800000, 0x3f800000, 0x3f800000, 0x3f800000 };
+	LLSimdScalar tol = _mm_load_ss( &tolerance );
+	tol = _mm_mul_ss( tol, tol );
+	LLVector4a lenSquared; lenSquared.setAllDot3( *this, *this );
+	lenSquared.sub( *reinterpret_cast<const LLVector4a*>(ones) );
+	lenSquared.setAbs(lenSquared);
+	return _mm_comile_ss( lenSquared, tol );		
+}
+
+// Return true if this vector is normalized with respect to all components up to tolerance
+inline LLBool32 LLVector4a::isNormalized4( F32 tolerance ) const
+{
+	static LL_ALIGN_16(const U32 ones[4]) = { 0x3f800000, 0x3f800000, 0x3f800000, 0x3f800000 };
+	LLSimdScalar tol = _mm_load_ss( &tolerance );
+	tol = _mm_mul_ss( tol, tol );
+	LLVector4a lenSquared; lenSquared.setAllDot4( *this, *this );
+	lenSquared.sub( *reinterpret_cast<const LLVector4a*>(ones) );
+	lenSquared.setAbs(lenSquared);
+	return _mm_comile_ss( lenSquared, tol );		
+}
+
+// Set all elements to the length of vector 'v' 
+inline void LLVector4a::setAllLength3( const LLVector4a& v )
+{
+	LLVector4a lenSqrd;
+	lenSqrd.setAllDot3(v, v);
+	
+	mQ = _mm_sqrt_ps(lenSqrd.mQ);
+}
+
+// Get this vector's length
+inline LLSimdScalar LLVector4a::getLength3() const
+{
+	return _mm_sqrt_ss( dot3( (const LLVector4a)mQ ) );
+}
+
+// Set the components of this vector to the minimum of the corresponding components of lhs and rhs
+inline void LLVector4a::setMin(const LLVector4a& lhs, const LLVector4a& rhs)
+{
+	mQ = _mm_min_ps(lhs.mQ, rhs.mQ);
+}
+
+// Set the components of this vector to the maximum of the corresponding components of lhs and rhs
+inline void LLVector4a::setMax(const LLVector4a& lhs, const LLVector4a& rhs)
+{
+	mQ = _mm_max_ps(lhs.mQ, rhs.mQ);
+}
+
+// Set this to  (c * lhs) + rhs * ( 1 - c)
+inline void LLVector4a::setLerp(const LLVector4a& lhs, const LLVector4a& rhs, F32 c)
+{
+	LLVector4a a = lhs;
+	a.mul(c);
+	
+	LLVector4a b = rhs;
+	b.mul(1.f-c);
+	
+	setAdd(a, b);
+}
+
+inline LLBool32 LLVector4a::isFinite3() const
+{
+	static LL_ALIGN_16(const U32 nanOrInfMask[4]) = { 0x7f800000, 0x7f800000, 0x7f800000, 0x7f800000 };
+	const __m128i nanOrInfMaskV = *reinterpret_cast<const __m128i*> (nanOrInfMask);
+	const __m128i maskResult = _mm_and_si128( _mm_castps_si128(mQ), nanOrInfMaskV );
+	const LLVector4Logical equalityCheck = _mm_castsi128_ps(_mm_cmpeq_epi32( maskResult, nanOrInfMaskV ));
+	return !equalityCheck.areAnySet( LLVector4Logical::MASK_XYZ );
+}
+	
+inline LLBool32 LLVector4a::isFinite4() const
+{
+	static LL_ALIGN_16(const U32 nanOrInfMask[4]) = { 0x7f800000, 0x7f800000, 0x7f800000, 0x7f800000 };
+	const __m128i nanOrInfMaskV = *reinterpret_cast<const __m128i*> (nanOrInfMask);
+	const __m128i maskResult = _mm_and_si128( _mm_castps_si128(mQ), nanOrInfMaskV );
+	const LLVector4Logical equalityCheck = _mm_castsi128_ps(_mm_cmpeq_epi32( maskResult, nanOrInfMaskV ));
+	return !equalityCheck.areAnySet( LLVector4Logical::MASK_XYZW );
+}
+
+inline void LLVector4a::setRotatedInv( const LLRotation& rot, const LLVector4a& vec )
+{
+	LLRotation inv; inv.setTranspose( rot );
+	setRotated( inv, vec );
+}
+
+inline void LLVector4a::setRotatedInv( const LLQuaternion2& quat, const LLVector4a& vec )
+{
+	LLQuaternion2 invRot; invRot.setConjugate( quat );
+	setRotated(invRot, vec);
+}
+
+inline void LLVector4a::clamp( const LLVector4a& low, const LLVector4a& high )
+{
+	const LLVector4Logical highMask = greaterThan( high );
+	const LLVector4Logical lowMask = lessThan( low );
+
+	setSelectWithMask( highMask, high, *this );
+	setSelectWithMask( lowMask, low, *this );
+}
+
+
+////////////////////////////////////
+// LOGICAL
+////////////////////////////////////	
+// The functions in this section will compare the elements in this vector
+// to those in rhs and return an LLVector4Logical with all bits set in elements
+// where the comparison was true and all bits unset in elements where the comparison
+// was false. See llvector4logica.h
+////////////////////////////////////
+// WARNING: Other than equals3 and equals4, these functions do NOT account
+// for floating point tolerance. You should include the appropriate tolerance
+// in the inputs.
+////////////////////////////////////
+
+inline LLVector4Logical LLVector4a::greaterThan(const LLVector4a& rhs) const
+{	
+	return _mm_cmpgt_ps(mQ, rhs.mQ);
+}
+
+inline LLVector4Logical LLVector4a::lessThan(const LLVector4a& rhs) const
+{
+	return _mm_cmplt_ps(mQ, rhs.mQ);
+}
+
+inline LLVector4Logical LLVector4a::greaterEqual(const LLVector4a& rhs) const
+{
+	return _mm_cmpge_ps(mQ, rhs.mQ);
+}
+
+inline LLVector4Logical LLVector4a::lessEqual(const LLVector4a& rhs) const
+{
+	return _mm_cmple_ps(mQ, rhs.mQ);
+}
+
+inline LLVector4Logical LLVector4a::equal(const LLVector4a& rhs) const
+{
+	return _mm_cmpeq_ps(mQ, rhs.mQ);
+}
+
+// Returns true if this and rhs are componentwise equal up to the specified absolute tolerance
+inline bool LLVector4a::equals4(const LLVector4a& rhs, F32 tolerance ) const
+{
+	LLVector4a diff; diff.setSub( *this, rhs );
+	diff.setAbs( diff );
+	const LLQuad tol = _mm_set1_ps( tolerance );
+	const LLQuad cmp = _mm_cmplt_ps( diff, tol );
+	return (_mm_movemask_ps( cmp ) & LLVector4Logical::MASK_XYZW) == LLVector4Logical::MASK_XYZW;
+}
+
+inline bool LLVector4a::equals3(const LLVector4a& rhs, F32 tolerance ) const
+{
+	LLVector4a diff; diff.setSub( *this, rhs );
+	diff.setAbs( diff );
+	const LLQuad tol = _mm_set1_ps( tolerance );
+	const LLQuad t = _mm_cmplt_ps( diff, tol ); 
+	return (_mm_movemask_ps( t ) & LLVector4Logical::MASK_XYZ) == LLVector4Logical::MASK_XYZ;
+	
+}
+
+////////////////////////////////////
+// OPERATORS
+////////////////////////////////////	
+
+// Do NOT add aditional operators without consulting someone with SSE experience
+inline const LLVector4a& LLVector4a::operator= ( const LLVector4a& rhs )
+{
+	mQ = rhs.mQ;
+	return *this;
+}
+
+inline const LLVector4a& LLVector4a::operator= ( const LLQuad& rhs )
+{
+	mQ = rhs;
+	return *this;
+}
+
+inline LLVector4a::operator LLQuad() const
+{
+	return mQ;
+}
diff --git a/indra/llmath/llvector4logical.h b/indra/llmath/llvector4logical.h
new file mode 100644
index 0000000000..1c7ee1d79f
--- /dev/null
+++ b/indra/llmath/llvector4logical.h
@@ -0,0 +1,130 @@
+/** 
+ * @file llvector4logical.h
+ * @brief LLVector4Logical class header file - Companion class to LLVector4a for logical and bit-twiddling operations
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2007-2010, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ *
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef	LL_VECTOR4LOGICAL_H
+#define	LL_VECTOR4LOGICAL_H
+
+
+////////////////////////////
+// LLVector4Logical
+////////////////////////////
+// This class is incomplete. If you need additional functionality,
+// for example setting/unsetting particular elements or performing
+// other boolean operations, feel free to implement. If you need
+// assistance in determining the most optimal implementation,
+// contact someone with SSE experience (Falcon, Richard, Davep, e.g.)
+////////////////////////////
+
+static LL_ALIGN_16(const U32 S_V4LOGICAL_MASK_TABLE[4*4]) =
+{
+	0xFFFFFFFF, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0xFFFFFFFF, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0xFFFFFFFF, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0xFFFFFFFF
+};
+
+class LLVector4Logical
+{
+public:
+	
+	enum {
+		MASK_X = 1,
+		MASK_Y = 1 << 1,
+		MASK_Z = 1 << 2,
+		MASK_W = 1 << 3,
+		MASK_XYZ = MASK_X | MASK_Y | MASK_Z,
+		MASK_XYZW = MASK_XYZ | MASK_W
+	};
+	
+	// Empty default ctor
+	LLVector4Logical() {}
+	
+	LLVector4Logical( const LLQuad& quad )
+	{
+		mQ = quad;
+	}
+	
+	// Create and return a mask consisting of the lowest order bit of each element
+	inline U32 getGatheredBits() const
+	{
+		return _mm_movemask_ps(mQ);
+	};	
+	
+	// Invert this mask
+	inline LLVector4Logical& invert()
+	{
+		static const LL_ALIGN_16(U32 allOnes[4]) = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
+		mQ = _mm_andnot_ps( mQ, *(LLQuad*)(allOnes) );
+		return *this;
+	}
+	
+	inline LLBool32 areAllSet( U32 mask ) const
+	{
+		return ( getGatheredBits() & mask) == mask;
+	}
+	
+	inline LLBool32 areAllSet() const
+	{
+		return areAllSet( MASK_XYZW );
+	}
+		
+	inline LLBool32 areAnySet( U32 mask ) const
+	{
+		return getGatheredBits() & mask;
+	}
+	
+	inline LLBool32 areAnySet() const
+	{
+		return areAnySet( MASK_XYZW );
+	}
+	
+	inline operator LLQuad() const
+	{
+		return mQ;
+	}
+
+	inline void clear() 
+	{
+		mQ = _mm_setzero_ps();
+	}
+
+	template<int N> void setElement()
+	{
+		mQ = _mm_or_ps( mQ, *reinterpret_cast<const LLQuad*>(S_V4LOGICAL_MASK_TABLE + 4*N) );
+	}
+	
+private:
+	
+	LLQuad mQ;
+};
+
+#endif //LL_VECTOR4ALOGICAL_H
diff --git a/indra/llmath/llvolumeoctree.cpp b/indra/llmath/llvolumeoctree.cpp
new file mode 100644
index 0000000000..194b1faf81
--- /dev/null
+++ b/indra/llmath/llvolumeoctree.cpp
@@ -0,0 +1,208 @@
+/** 
+
+ * @file llvolumeoctree.cpp
+ *
+ * $LicenseInfo:firstyear=2002&license=viewergpl$
+ * 
+ * Copyright (c) 2002-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "llvolumeoctree.h"
+#include "llvector4a.h"
+
+BOOL LLLineSegmentBoxIntersect(const LLVector4a& start, const LLVector4a& end, const LLVector4a& center, const LLVector4a& size)
+{
+	LLVector4a fAWdU;
+	LLVector4a dir;
+	LLVector4a diff;
+
+	dir.setSub(end, start);
+	dir.mul(0.5f);
+
+	diff.setAdd(end,start);
+	diff.mul(0.5f);
+	diff.sub(center);
+	fAWdU.setAbs(dir); 
+
+	LLVector4a rhs;
+	rhs.setAdd(size, fAWdU);
+
+	LLVector4a lhs;
+	lhs.setAbs(diff);
+
+	U32 grt = lhs.greaterThan(rhs).getGatheredBits();
+
+	if (grt & 0x7)
+	{
+		return false;
+	}
+	
+	LLVector4a f;
+	f.setCross3(dir, diff);
+	f.setAbs(f);
+
+	LLVector4a v0, v1;
+
+	v0 = _mm_shuffle_ps(size, size,_MM_SHUFFLE(3,0,0,1));
+	v1 = _mm_shuffle_ps(fAWdU, fAWdU, _MM_SHUFFLE(3,1,2,2));
+	lhs.setMul(v0, v1);
+
+	v0 = _mm_shuffle_ps(size, size, _MM_SHUFFLE(3,1,2,2));
+	v1 = _mm_shuffle_ps(fAWdU, fAWdU, _MM_SHUFFLE(3,0,0,1));
+	rhs.setMul(v0, v1);
+	rhs.add(lhs);
+	
+	grt = f.greaterThan(rhs).getGatheredBits();
+
+	return (grt & 0x7) ? false : true;
+}
+
+
+LLVolumeOctreeListener::LLVolumeOctreeListener(LLOctreeNode<LLVolumeTriangle>* node)
+{
+	node->addListener(this);
+
+	mBounds = (LLVector4a*) ll_aligned_malloc_16(sizeof(LLVector4a)*4);
+	mExtents = mBounds+2;
+}
+
+LLVolumeOctreeListener::~LLVolumeOctreeListener()
+{
+	ll_aligned_free_16(mBounds);
+}
+	
+void LLVolumeOctreeListener::handleChildAddition(const LLOctreeNode<LLVolumeTriangle>* parent, 
+	LLOctreeNode<LLVolumeTriangle>* child)
+{
+	new LLVolumeOctreeListener(child);
+}
+
+
+LLOctreeTriangleRayIntersect::LLOctreeTriangleRayIntersect(const LLVector4a& start, const LLVector4a& dir, 
+							   const LLVolumeFace* face, F32* closest_t,
+							   LLVector3* intersection,LLVector2* tex_coord, LLVector3* normal, LLVector3* bi_normal)
+   : mFace(face),
+     mStart(start),
+	 mDir(dir),
+	 mIntersection(intersection),
+	 mTexCoord(tex_coord),
+	 mNormal(normal),
+	 mBinormal(bi_normal),
+	 mClosestT(closest_t),
+	 mHitFace(false)
+{
+	mEnd.setAdd(mStart, mDir);
+}
+
+void LLOctreeTriangleRayIntersect::traverse(const LLOctreeNode<LLVolumeTriangle>* node)
+{
+	LLVolumeOctreeListener* vl = (LLVolumeOctreeListener*) node->getListener(0);
+
+	/*const F32* start = mStart.getF32();
+	const F32* end = mEnd.getF32();
+	const F32* center = vl->mBounds[0].getF32();
+	const F32* size = vl->mBounds[1].getF32();*/
+
+	//if (LLLineSegmentBoxIntersect(mStart.getF32(), mEnd.getF32(), vl->mBounds[0].getF32(), vl->mBounds[1].getF32()))
+	if (LLLineSegmentBoxIntersect(mStart, mEnd, vl->mBounds[0], vl->mBounds[1]))
+	{
+		node->accept(this);
+		for (S32 i = 0; i < node->getChildCount(); ++i)
+		{
+			traverse(node->getChild(i));
+		}
+	}
+}
+
+void LLOctreeTriangleRayIntersect::visit(const LLOctreeNode<LLVolumeTriangle>* node)
+{
+	for (LLOctreeNode<LLVolumeTriangle>::const_element_iter iter = 
+			node->getData().begin(); iter != node->getData().end(); ++iter)
+	{
+		const LLVolumeTriangle* tri = *iter;
+
+		F32 a, b, t;
+		
+		if (LLTriangleRayIntersect(*tri->mV[0], *tri->mV[1], *tri->mV[2],
+				mStart, mDir, a, b, t))
+		{
+			if ((t >= 0.f) &&      // if hit is after start
+				(t <= 1.f) &&      // and before end
+				(t < *mClosestT))   // and this hit is closer
+			{
+				*mClosestT = t;
+				mHitFace = true;
+
+				if (mIntersection != NULL)
+				{
+					LLVector4a intersect = mDir;
+					intersect.mul(*mClosestT);
+					intersect.add(mStart);
+					mIntersection->set(intersect.getF32ptr());
+				}
+
+
+				if (mTexCoord != NULL)
+				{
+					LLVector2* tc = (LLVector2*) mFace->mTexCoords;
+					*mTexCoord = ((1.f - a - b)  * tc[tri->mIndex[0]] +
+						a              * tc[tri->mIndex[1]] +
+						b              * tc[tri->mIndex[2]]);
+
+				}
+
+				if (mNormal != NULL)
+				{
+					LLVector4* norm = (LLVector4*) mFace->mNormals;
+
+					*mNormal    = ((1.f - a - b)  * LLVector3(norm[tri->mIndex[0]]) + 
+						a              * LLVector3(norm[tri->mIndex[1]]) +
+						b              * LLVector3(norm[tri->mIndex[2]]));
+				}
+
+				if (mBinormal != NULL)
+				{
+					LLVector4* binormal = (LLVector4*) mFace->mBinormals;
+					*mBinormal = ((1.f - a - b)  * LLVector3(binormal[tri->mIndex[0]]) + 
+							a              * LLVector3(binormal[tri->mIndex[1]]) +
+							b              * LLVector3(binormal[tri->mIndex[2]]));
+				}
+			}
+		}
+	}
+}
+
+const LLVector4a& LLVolumeTriangle::getPositionGroup() const
+{
+	return *mPositionGroup;
+}
+
+const F32& LLVolumeTriangle::getBinRadius() const
+{
+	return mRadius;
+}
+
+
diff --git a/indra/llmath/llvolumeoctree.h b/indra/llmath/llvolumeoctree.h
new file mode 100644
index 0000000000..0031626498
--- /dev/null
+++ b/indra/llmath/llvolumeoctree.h
@@ -0,0 +1,138 @@
+/** 
+ * @file llvolumeoctree.h
+ * @brief LLVolume octree classes.
+ *
+ * $LicenseInfo:firstyear=2002&license=viewergpl$
+ * 
+ * Copyright (c) 2002-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLVOLUME_OCTREE_H
+#define LL_LLVOLUME_OCTREE_H
+
+#include "linden_common.h"
+#include "llmemory.h"
+
+#include "lloctree.h"
+#include "llvolume.h"
+#include "llvector4a.h"
+
+class LLVolumeOctreeListener : public LLOctreeListener<LLVolumeTriangle>
+{
+public:
+	
+	LLVolumeOctreeListener(LLOctreeNode<LLVolumeTriangle>* node);
+	~LLVolumeOctreeListener();
+	
+	LLVolumeOctreeListener(const LLVolumeOctreeListener& rhs)
+	{
+		*this = rhs;
+	}
+
+	const LLVolumeOctreeListener& operator=(const LLVolumeOctreeListener& rhs)
+	{
+		llerrs << "Illegal operation!" << llendl;
+		return *this;
+	}
+
+	 //LISTENER FUNCTIONS
+	virtual void handleChildAddition(const LLOctreeNode<LLVolumeTriangle>* parent, 
+		LLOctreeNode<LLVolumeTriangle>* child);
+	virtual void handleStateChange(const LLTreeNode<LLVolumeTriangle>* node) { }
+	virtual void handleChildRemoval(const LLOctreeNode<LLVolumeTriangle>* parent, 
+			const LLOctreeNode<LLVolumeTriangle>* child) {	}
+	virtual void handleInsertion(const LLTreeNode<LLVolumeTriangle>* node, LLVolumeTriangle* tri) { }
+	virtual void handleRemoval(const LLTreeNode<LLVolumeTriangle>* node, LLVolumeTriangle* tri) { }
+	virtual void handleDestruction(const LLTreeNode<LLVolumeTriangle>* node) { }
+	
+
+public:
+	LLVector4a* mBounds; // bounding box (center, size) of this node and all its children (tight fit to objects)
+	LLVector4a* mExtents; // extents (min, max) of this node and all its children
+};
+
+class LLOctreeTriangleRayIntersect : public LLOctreeTraveler<LLVolumeTriangle>
+{
+public:
+	const LLVolumeFace* mFace;
+	LLVector4a mStart;
+	LLVector4a mDir;
+	LLVector4a mEnd;
+	LLVector3* mIntersection;
+	LLVector2* mTexCoord;
+	LLVector3* mNormal;
+	LLVector3* mBinormal;
+	F32* mClosestT;
+	bool mHitFace;
+
+	LLOctreeTriangleRayIntersect() { };
+
+	LLOctreeTriangleRayIntersect(const LLVector4a& start, const LLVector4a& dir, 
+								   const LLVolumeFace* face, F32* closest_t,
+								   LLVector3* intersection,LLVector2* tex_coord, LLVector3* normal, LLVector3* bi_normal);
+
+	void traverse(const LLOctreeNode<LLVolumeTriangle>* node);
+
+	virtual void visit(const LLOctreeNode<LLVolumeTriangle>* node);
+};
+
+class LLVolumeTriangle : public LLRefCount
+{
+public:
+	LLVolumeTriangle()
+	{
+		mPositionGroup = (LLVector4a*) ll_aligned_malloc_16(16);
+	}
+
+	LLVolumeTriangle(const LLVolumeTriangle& rhs)
+	{
+		*this = rhs;
+	}
+
+	const LLVolumeTriangle& operator=(const LLVolumeTriangle& rhs)
+	{
+		llerrs << "Illegal operation!" << llendl;
+		return *this;
+	}
+
+	~LLVolumeTriangle()
+	{
+		ll_aligned_free_16(mPositionGroup);
+	}
+
+	const LLVector4a* mV[3];
+	U16 mIndex[3];
+
+	LLVector4a* mPositionGroup;
+
+	F32 mRadius;
+
+	virtual const LLVector4a& getPositionGroup() const;
+	virtual const F32& getBinRadius() const;
+};
+
+
+#endif
diff --git a/indra/llprimitive/llmodel.cpp b/indra/llprimitive/llmodel.cpp
new file mode 100644
index 0000000000..82765c740f
--- /dev/null
+++ b/indra/llprimitive/llmodel.cpp
@@ -0,0 +1,1695 @@
+/** 
+ * @file llmodel.cpp
+ * @brief Model handling implementation
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ * 
+ * Copyright (c) 2001-2007, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "linden_common.h"
+
+#include "llmodel.h"
+#include "llsdserialize.h"
+#include "llvector4a.h"
+
+#include "dae.h"
+#include "dae/daeErrorHandler.h"
+#include "dom/domConstants.h"
+#include "dom/domMesh.h"
+#include "zlib/zlib.h"
+
+#if LL_MESH_ENABLED
+
+std::string model_names[] =
+{
+	"lowest_lod",
+	"low_lod",
+	"medium_lod",
+	"high_lod",
+	"physics_shape"
+};
+
+const int MODEL_NAMES_LENGTH = sizeof(model_names) / sizeof(std::string);
+
+LLModel::LLModel(LLVolumeParams& params, F32 detail)
+	: LLVolume(params, detail), mNormalizedScale(1,1,1), mNormalizedTranslation(0,0,0)
+{
+
+}
+
+void load_face_from_dom_inputs(LLVolumeFace& face, const domInputLocalOffset_Array& inputs, U32 min_idx, U32 max_idx)
+{
+	for (U32 j = 0; j < inputs.getCount(); ++j)
+	{
+		if (strcmp(COMMON_PROFILE_INPUT_VERTEX, inputs[j]->getSemantic()) == 0)
+		{ //found vertex array
+			const domURIFragmentType& uri = inputs[j]->getSource();
+			daeElementRef elem = uri.getElement();
+			domVertices* vertices = (domVertices*) elem.cast();
+
+			domInputLocal_Array& v_inp = vertices->getInput_array();
+			if (inputs[j]->getOffset() != 0)
+			{
+				llerrs << "WTF?" << llendl;
+			}
+
+			for (U32 k = 0; k < v_inp.getCount(); ++k)
+			{
+				if (strcmp(COMMON_PROFILE_INPUT_POSITION, v_inp[k]->getSemantic()) == 0)
+				{
+					const domURIFragmentType& uri = v_inp[k]->getSource();
+					
+					daeElementRef elem = uri.getElement();
+					domSource* src = (domSource*) elem.cast();
+
+					if (src->getTechnique_common()->getAccessor()->getStride() != 3)
+					{
+						llerrs << "WTF?" << llendl;
+					}
+
+					domListOfFloats& v = src->getFloat_array()->getValue();
+
+					LLVector4a min;
+					min.set(v[min_idx], v[min_idx+1], v[min_idx+2]);
+					LLVector4a max = min;
+
+					for (U32 j = min_idx; j <= max_idx; ++j)
+					{ //copy vertex array
+						face.mPositions[j-min_idx].set(v[j*3+0], v[j*3+1], v[j*3+2]);
+						update_min_max(min, max, face.mPositions[j-min_idx]);
+					}
+
+					face.mExtents[0] = min;
+					face.mExtents[1] = max;
+				}
+			}
+		}
+
+		if (strcmp(COMMON_PROFILE_INPUT_NORMAL, inputs[j]->getSemantic()) == 0)
+		{
+			//found normal array for this triangle list
+			const domURIFragmentType& uri = inputs[j]->getSource();
+			daeElementRef elem = uri.getElement();
+			domSource* src = (domSource*) elem.cast();
+			domListOfFloats& n = src->getFloat_array()->getValue();
+			
+			for (U32 j = min_idx; j <= max_idx; ++j)
+			{
+				LLVector4a* norm = (LLVector4a*) face.mNormals + (j-min_idx);
+				norm->set(n[j*3+0], n[j*3+1], n[j*3+2]);
+				norm->normalize3fast();
+			}
+		}
+		else if (strcmp(COMMON_PROFILE_INPUT_TEXCOORD, inputs[j]->getSemantic()) == 0)
+		{ //found texCoords
+			const domURIFragmentType& uri = inputs[j]->getSource();
+			daeElementRef elem = uri.getElement();
+			domSource* src = (domSource*) elem.cast();
+			domListOfFloats& u = src->getFloat_array()->getValue();
+			
+			for (U32 j = min_idx; j <= max_idx; ++j)
+			{
+				face.mTexCoords[j-min_idx].setVec(u[j*2+0], u[j*2+1]);
+			}
+		}
+	}
+}
+
+void get_dom_sources(const domInputLocalOffset_Array& inputs, S32& pos_offset, S32& tc_offset, S32& norm_offset, S32 &idx_stride,
+					 domSource* &pos_source, domSource* &tc_source, domSource* &norm_source)
+{
+	idx_stride = 0;
+
+	for (U32 j = 0; j < inputs.getCount(); ++j)
+	{
+		idx_stride = llmax((S32) inputs[j]->getOffset(), idx_stride);
+
+		if (strcmp(COMMON_PROFILE_INPUT_VERTEX, inputs[j]->getSemantic()) == 0)
+		{ //found vertex array
+			const domURIFragmentType& uri = inputs[j]->getSource();
+			daeElementRef elem = uri.getElement();
+			domVertices* vertices = (domVertices*) elem.cast();
+
+			domInputLocal_Array& v_inp = vertices->getInput_array();
+			
+			
+			for (U32 k = 0; k < v_inp.getCount(); ++k)
+			{
+				if (strcmp(COMMON_PROFILE_INPUT_POSITION, v_inp[k]->getSemantic()) == 0)
+				{
+					pos_offset = inputs[j]->getOffset();
+
+					const domURIFragmentType& uri = v_inp[k]->getSource();
+					daeElementRef elem = uri.getElement();
+					pos_source = (domSource*) elem.cast();
+				}
+				
+				if (strcmp(COMMON_PROFILE_INPUT_NORMAL, v_inp[k]->getSemantic()) == 0)
+				{
+					norm_offset = inputs[j]->getOffset();
+
+					const domURIFragmentType& uri = v_inp[k]->getSource();
+					daeElementRef elem = uri.getElement();
+					norm_source = (domSource*) elem.cast();
+				}
+			}
+		}
+
+		if (strcmp(COMMON_PROFILE_INPUT_NORMAL, inputs[j]->getSemantic()) == 0)
+		{
+			//found normal array for this triangle list
+			norm_offset = inputs[j]->getOffset();
+			const domURIFragmentType& uri = inputs[j]->getSource();
+			daeElementRef elem = uri.getElement();
+			norm_source = (domSource*) elem.cast();
+		}
+		else if (strcmp(COMMON_PROFILE_INPUT_TEXCOORD, inputs[j]->getSemantic()) == 0)
+		{ //found texCoords
+			tc_offset = inputs[j]->getOffset();
+			const domURIFragmentType& uri = inputs[j]->getSource();
+			daeElementRef elem = uri.getElement();
+			tc_source = (domSource*) elem.cast();
+		}
+	}
+
+	idx_stride += 1;
+}
+
+void load_face_from_dom_triangles(std::vector<LLVolumeFace>& face_list, std::vector<std::string>& materials, domTrianglesRef& tri)
+{
+	LLVolumeFace face;
+	std::vector<LLVolumeFace::VertexData> verts;
+	std::vector<U16> indices;
+	
+	const domInputLocalOffset_Array& inputs = tri->getInput_array();
+
+	S32 pos_offset = -1;
+	S32 tc_offset = -1;
+	S32 norm_offset = -1;
+
+	domSource* pos_source = NULL;
+	domSource* tc_source = NULL;
+	domSource* norm_source = NULL;
+
+	S32 idx_stride = 0;
+
+	get_dom_sources(inputs, pos_offset, tc_offset, norm_offset, idx_stride, pos_source, tc_source, norm_source);
+
+	domPRef p = tri->getP();
+	domListOfUInts& idx = p->getValue();
+	
+	domListOfFloats v;
+	domListOfFloats tc;
+	domListOfFloats n;
+
+	if (pos_source)
+	{
+		v = pos_source->getFloat_array()->getValue();
+		face.mExtents[0].set(v[0], v[1], v[2]);
+		face.mExtents[1].set(v[0], v[1], v[2]);
+	}
+
+	if (tc_source)
+	{
+		tc = tc_source->getFloat_array()->getValue();
+	}
+
+	if (norm_source)
+	{
+		n = norm_source->getFloat_array()->getValue();
+	}
+
+	
+	LLVolumeFace::VertexMapData::PointMap point_map;
+	
+	for (U32 i = 0; i < idx.getCount(); i += idx_stride)
+	{
+		LLVolumeFace::VertexData cv;
+		if (pos_source)
+		{
+			cv.setPosition(LLVector4a(v[idx[i+pos_offset]*3+0],
+								v[idx[i+pos_offset]*3+1],
+								v[idx[i+pos_offset]*3+2]));
+		}
+
+		if (tc_source)
+		{
+			cv.mTexCoord.setVec(tc[idx[i+tc_offset]*2+0],
+								tc[idx[i+tc_offset]*2+1]);
+		}
+
+		if (norm_source)
+		{
+			cv.setNormal(LLVector4a(n[idx[i+norm_offset]*3+0],
+								n[idx[i+norm_offset]*3+1],
+								n[idx[i+norm_offset]*3+2]));
+		}
+
+		
+		BOOL found = FALSE;
+			
+		LLVolumeFace::VertexMapData::PointMap::iterator point_iter;
+		point_iter = point_map.find(LLVector3(cv.getPosition().getF32ptr()));
+		
+		if (point_iter != point_map.end())
+		{
+			for (U32 j = 0; j < point_iter->second.size(); ++j)
+			{
+				if ((point_iter->second)[j] == cv)
+				{
+					found = TRUE;
+					indices.push_back((point_iter->second)[j].mIndex);
+					break;
+				}
+			}
+		}
+
+		if (!found)
+		{
+			update_min_max(face.mExtents[0], face.mExtents[1], cv.getPosition());
+			verts.push_back(cv);
+			if (verts.size() >= 65535)
+			{
+				llerrs << "Attempted to write model exceeding 16-bit index buffer limitation." << llendl;
+			}
+			U16 index = (U16) (verts.size()-1);
+			indices.push_back(index);
+
+			LLVolumeFace::VertexMapData d;
+			d.setPosition(cv.getPosition());
+			d.mTexCoord = cv.mTexCoord;
+			d.setNormal(cv.getNormal());
+			d.mIndex = index;
+			if (point_iter != point_map.end())
+			{
+				point_iter->second.push_back(d);
+			}
+			else
+			{
+				point_map[LLVector3(d.getPosition().getF32ptr())].push_back(d);
+			}
+		}
+
+		if (indices.size()%3 == 0 && verts.size() >= 65532)
+		{
+			face_list.push_back(face);
+			face_list.rbegin()->fillFromLegacyData(verts, indices);
+			face = LLVolumeFace();
+			point_map.clear();
+		}
+
+	}
+
+	if (!verts.empty())
+	{
+		std::string material;
+
+		if (tri->getMaterial())
+		{
+			material = std::string(tri->getMaterial());
+		}
+		
+		materials.push_back(material);
+		face_list.push_back(face);
+
+		face_list.rbegin()->fillFromLegacyData(verts, indices);
+	}
+
+}
+
+void load_face_from_dom_polylist(std::vector<LLVolumeFace>& face_list, std::vector<std::string>& materials, domPolylistRef& poly)
+{
+	domPRef p = poly->getP();
+	domListOfUInts& idx = p->getValue();
+
+	if (idx.getCount() == 0)
+	{
+		return;
+	}
+
+	const domInputLocalOffset_Array& inputs = poly->getInput_array();
+
+
+	domListOfUInts& vcount = poly->getVcount()->getValue();
+	
+	S32 pos_offset = -1;
+	S32 tc_offset = -1;
+	S32 norm_offset = -1;
+
+	domSource* pos_source = NULL;
+	domSource* tc_source = NULL;
+	domSource* norm_source = NULL;
+
+	S32 idx_stride = 0;
+
+	get_dom_sources(inputs, pos_offset, tc_offset, norm_offset, idx_stride, pos_source, tc_source, norm_source);
+
+	LLVolumeFace face;
+
+	std::vector<U16> indices;
+	std::vector<LLVolumeFace::VertexData> verts;
+
+	domListOfFloats v;
+	domListOfFloats tc;
+	domListOfFloats n;
+
+	if (pos_source)
+	{
+		v = pos_source->getFloat_array()->getValue();
+		face.mExtents[0].set(v[0], v[1], v[2]);
+		face.mExtents[1].set(v[0], v[1], v[2]);
+	}
+
+	if (tc_source)
+	{
+		tc = tc_source->getFloat_array()->getValue();
+	}
+
+	if (norm_source)
+	{
+		n = norm_source->getFloat_array()->getValue();
+	}
+	
+	LLVolumeFace::VertexMapData::PointMap point_map;
+
+	U32 cur_idx = 0;
+	for (U32 i = 0; i < vcount.getCount(); ++i)
+	{ //for each polygon
+		U32 first_index = 0;
+		U32 last_index = 0;
+		for (U32 j = 0; j < vcount[i]; ++j)
+		{ //for each vertex
+
+			LLVolumeFace::VertexData cv;
+
+			if (pos_source)
+			{
+				cv.getPosition().set(v[idx[cur_idx+pos_offset]*3+0],
+									v[idx[cur_idx+pos_offset]*3+1],
+									v[idx[cur_idx+pos_offset]*3+2]);
+			}
+
+			if (tc_source)
+			{
+				cv.mTexCoord.setVec(tc[idx[cur_idx+tc_offset]*2+0],
+									tc[idx[cur_idx+tc_offset]*2+1]);
+			}
+
+			if (norm_source)
+			{
+				cv.getNormal().set(n[idx[cur_idx+norm_offset]*3+0],
+									n[idx[cur_idx+norm_offset]*3+1],
+									n[idx[cur_idx+norm_offset]*3+2]);
+			}
+
+			cur_idx += idx_stride;
+			
+			BOOL found = FALSE;
+				
+			LLVolumeFace::VertexMapData::PointMap::iterator point_iter;
+			LLVector3 pos3(cv.getPosition().getF32ptr());
+			point_iter = point_map.find(pos3);
+			
+			if (point_iter != point_map.end())
+			{
+				for (U32 k = 0; k < point_iter->second.size(); ++k)
+				{
+					if ((point_iter->second)[k] == cv)
+					{
+						found = TRUE;
+						U32 index = (point_iter->second)[k].mIndex;
+						if (j == 0)
+						{
+							first_index = index;
+						}
+						else if (j == 1)
+						{
+							last_index = index;
+						}
+						else
+						{
+							indices.push_back(first_index);
+							indices.push_back(last_index);
+							indices.push_back(index);
+							last_index = index;
+						}
+
+						break;
+					}
+				}
+			}
+
+			if (!found)
+			{
+				update_min_max(face.mExtents[0], face.mExtents[1], cv.getPosition());
+				verts.push_back(cv);
+				if (verts.size() >= 65535)
+				{
+					llerrs << "Attempted to write model exceeding 16-bit index buffer limitation." << llendl;
+				}
+				U16 index = (U16) (verts.size()-1);
+			
+				if (j == 0)
+				{
+					first_index = index;
+				}
+				else if (j == 1)
+				{
+					last_index = index;
+				}
+				else
+				{
+					indices.push_back(first_index);
+					indices.push_back(last_index);
+					indices.push_back(index);
+					last_index = index;
+				}	
+
+				LLVolumeFace::VertexMapData d;
+				d.setPosition(cv.getPosition());
+				d.mTexCoord = cv.mTexCoord;
+				d.setNormal(cv.getNormal());
+				d.mIndex = index;
+				if (point_iter != point_map.end())
+				{
+					point_iter->second.push_back(d);
+				}
+				else
+				{
+					point_map[pos3].push_back(d);
+				}
+			}
+
+			if (indices.size()%3 == 0 && indices.size() >= 65532)
+			{
+				face_list.push_back(face);
+				face_list.rbegin()->fillFromLegacyData(verts, indices);
+				face = LLVolumeFace();
+				verts.clear();
+				indices.clear();
+				point_map.clear();
+			}
+		}
+	}
+
+	if (!verts.empty())
+	{
+		std::string material;
+
+		if (poly->getMaterial())
+		{
+			material = std::string(poly->getMaterial());
+		}
+		
+		materials.push_back(material);
+		face_list.push_back(face);
+		face_list.rbegin()->fillFromLegacyData(verts, indices);
+	}
+}
+
+void load_face_from_dom_polygons(std::vector<LLVolumeFace>& face_list, std::vector<std::string>& materials, domPolygonsRef& poly)
+{
+	LLVolumeFace face;
+	std::vector<U16> indices;
+	std::vector<LLVolumeFace::VertexData> verts;
+
+	const domInputLocalOffset_Array& inputs = poly->getInput_array();
+
+
+	S32 v_offset = -1;
+	S32 n_offset = -1;
+	S32 t_offset = -1;
+
+	domListOfFloats* v = NULL;
+	domListOfFloats* n = NULL;
+	domListOfFloats* t = NULL;
+	
+	U32 stride = 0;
+	for (U32 i = 0; i < inputs.getCount(); ++i)
+	{
+		stride = llmax((U32) inputs[i]->getOffset()+1, stride);
+
+		if (strcmp(COMMON_PROFILE_INPUT_VERTEX, inputs[i]->getSemantic()) == 0)
+		{ //found vertex array
+			v_offset = inputs[i]->getOffset();
+
+			const domURIFragmentType& uri = inputs[i]->getSource();
+			daeElementRef elem = uri.getElement();
+			domVertices* vertices = (domVertices*) elem.cast();
+
+			domInputLocal_Array& v_inp = vertices->getInput_array();
+
+			for (U32 k = 0; k < v_inp.getCount(); ++k)
+			{
+				if (strcmp(COMMON_PROFILE_INPUT_POSITION, v_inp[k]->getSemantic()) == 0)
+				{
+					const domURIFragmentType& uri = v_inp[k]->getSource();
+					daeElementRef elem = uri.getElement();
+					domSource* src = (domSource*) elem.cast();
+					v = &(src->getFloat_array()->getValue());
+				}
+			}
+		}
+		else if (strcmp(COMMON_PROFILE_INPUT_NORMAL, inputs[i]->getSemantic()) == 0)
+		{
+			n_offset = inputs[i]->getOffset();
+			//found normal array for this triangle list
+			const domURIFragmentType& uri = inputs[i]->getSource();
+			daeElementRef elem = uri.getElement();
+			domSource* src = (domSource*) elem.cast();
+			n = &(src->getFloat_array()->getValue());
+		}
+		else if (strcmp(COMMON_PROFILE_INPUT_TEXCOORD, inputs[i]->getSemantic()) == 0 && inputs[i]->getSet() == 0)
+		{ //found texCoords
+			t_offset = inputs[i]->getOffset();
+			const domURIFragmentType& uri = inputs[i]->getSource();
+			daeElementRef elem = uri.getElement();
+			domSource* src = (domSource*) elem.cast();
+			t = &(src->getFloat_array()->getValue());
+		}
+	}
+
+	domP_Array& ps = poly->getP_array();
+
+	//make a triangle list in <verts>
+	for (U32 i = 0; i < ps.getCount(); ++i)
+	{ //for each polygon
+		domListOfUInts& idx = ps[i]->getValue();
+		for (U32 j = 0; j < idx.getCount()/stride; ++j)
+		{ //for each vertex
+			if (j > 2)
+			{
+				U32 size = verts.size();
+				LLVolumeFace::VertexData v0 = verts[size-3];
+				LLVolumeFace::VertexData v1 = verts[size-1];
+
+				verts.push_back(v0);
+				verts.push_back(v1);
+			}
+
+			LLVolumeFace::VertexData vert;
+
+
+			if (v)
+			{
+				U32 v_idx = idx[j*stride+v_offset]*3;
+				vert.getPosition().set(v->get(v_idx),
+								v->get(v_idx+1),
+								v->get(v_idx+2));
+			}
+			
+			if (n)
+			{
+				U32 n_idx = idx[j*stride+n_offset]*3;
+				vert.getNormal().set(n->get(n_idx),
+								n->get(n_idx+1),
+								n->get(n_idx+2));
+			}
+
+			if (t)
+			{
+				U32 t_idx = idx[j*stride+t_offset]*2;
+				vert.mTexCoord.setVec(t->get(t_idx),
+								t->get(t_idx+1));								
+			}
+		
+			
+			verts.push_back(vert);
+		}
+	}
+
+	if (verts.empty())
+	{
+		return;
+	}
+
+	face.mExtents[0] = verts[0].getPosition();
+	face.mExtents[1] = verts[0].getPosition();
+	
+	//create a map of unique vertices to indices
+	std::map<LLVolumeFace::VertexData, U32> vert_idx;
+
+	U32 cur_idx = 0;
+	for (U32 i = 0; i < verts.size(); ++i)
+	{
+		std::map<LLVolumeFace::VertexData, U32>::iterator iter = vert_idx.find(verts[i]);
+		if (iter == vert_idx.end())
+		{
+			vert_idx[verts[i]] = cur_idx++;
+		}
+	}
+
+	//build vertex array from map
+	verts.resize(vert_idx.size());
+
+	for (std::map<LLVolumeFace::VertexData, U32>::iterator iter = vert_idx.begin(); iter != vert_idx.end(); ++iter)
+	{
+		verts[iter->second] = iter->first;
+		update_min_max(face.mExtents[0], face.mExtents[1], iter->first.getPosition());
+	}
+
+	//build index array from map
+	indices.resize(verts.size());
+
+	for (U32 i = 0; i < verts.size(); ++i)
+	{
+		indices[i] = vert_idx[verts[i]];
+	}
+
+
+    if (!verts.empty())
+	{
+		std::string material;
+
+		if (poly->getMaterial())
+		{
+			material = std::string(poly->getMaterial());
+		}
+
+		materials.push_back(material);
+		face_list.push_back(face);
+		face_list.rbegin()->fillFromLegacyData(verts, indices);
+	}
+}
+
+void LLModel::addVolumeFacesFromDomMesh(domMesh* mesh)
+{
+	domTriangles_Array& tris = mesh->getTriangles_array();
+		
+	for (U32 i = 0; i < tris.getCount(); ++i)
+	{
+		domTrianglesRef& tri = tris.get(i);
+
+		load_face_from_dom_triangles(mVolumeFaces, mMaterialList, tri);
+	}
+
+	domPolylist_Array& polys = mesh->getPolylist_array();
+	for (U32 i = 0; i < polys.getCount(); ++i)
+	{
+		domPolylistRef& poly = polys.get(i);
+
+		load_face_from_dom_polylist(mVolumeFaces, mMaterialList, poly);
+	}
+
+	domPolygons_Array& polygons = mesh->getPolygons_array();
+	for (U32 i = 0; i < polygons.getCount(); ++i)
+	{
+		domPolygonsRef& poly = polygons.get(i);
+
+		load_face_from_dom_polygons(mVolumeFaces, mMaterialList, poly);
+	}
+
+}
+
+BOOL LLModel::createVolumeFacesFromDomMesh(domMesh* mesh)
+{
+	if (mesh)
+	{
+		mVolumeFaces.clear();
+		mMaterialList.clear();
+
+		addVolumeFacesFromDomMesh(mesh);
+
+		if (getNumVolumeFaces() > 0)
+		{
+			optimizeVolumeFaces();
+			normalizeVolumeFaces();
+
+			if (getNumVolumeFaces() > 0)
+			{
+				return TRUE;
+			}
+		}
+	}
+	else
+	{	
+		llwarns << "no mesh found" << llendl;
+	}
+	
+	return FALSE;
+}
+
+
+BOOL LLModel::createVolumeFacesFromFile(const std::string& file_name)
+{
+	DAE dae;
+	domCOLLADA* dom = dae.open(file_name);
+	if (dom)
+	{
+		daeDatabase* db = dae.getDatabase();
+
+		daeInt count = db->getElementCount(NULL, COLLADA_TYPE_MESH);
+		
+		mVolumeFaces.clear();
+		mMaterialList.clear();
+
+		for (daeInt idx = 0; idx < count; ++idx)
+		{
+			domMesh* mesh = NULL;
+
+			db->getElement((daeElement**) &mesh, idx, NULL, COLLADA_TYPE_MESH);
+			
+			if (mesh)
+			{
+				addVolumeFacesFromDomMesh(mesh);
+			}
+		}
+
+		if (getNumVolumeFaces() > 0)
+		{
+			optimizeVolumeFaces();
+			normalizeVolumeFaces();
+			return TRUE;
+		}
+	}
+
+	return FALSE;
+}
+
+
+void LLModel::optimizeVolumeFaces()
+{
+#if 0 //VECTORIZE ?
+	for (std::vector<LLVolumeFace>::iterator iter = mVolumeFaces.begin(); iter != mVolumeFaces.end(); )
+	{
+		std::vector<LLVolumeFace>::iterator cur_iter = iter++;
+		LLVolumeFace& face = *cur_iter;
+
+		for (S32 i = 0; i < (S32) face.mNumIndices; i += 3)
+		{ //remove zero area triangles
+			U16 i0 = face.mIndices[i+0];
+			U16 i1 = face.mIndices[i+1];
+			U16 i2 = face.mIndices[i+2];
+
+			if (i0 == i1 || 
+				i1 == i2 || 
+				i0 == i2)
+			{ //duplicate index in triangle, remove triangle
+				face.mIndices.erase(face.mIndices.begin()+i, face.mIndices.begin()+i+3);
+				i -= 3;
+			}
+			else
+			{ 
+				LLVolumeFace::VertexData& v0 = face.mVertices[i0];
+				LLVolumeFace::VertexData& v1 = face.mVertices[i1];
+				LLVolumeFace::VertexData& v2 = face.mVertices[i2];
+
+				if (v0.mPosition == v1.mPosition ||
+					v1.mPosition == v2.mPosition ||
+					v2.mPosition == v0.mPosition)
+				{ //zero area triangle, delete
+					face.mIndices.erase(face.mIndices.begin()+i, face.mIndices.begin()+i+3);
+					i-=3;
+				}
+			}
+		}
+
+		//remove unreference vertices
+		std::vector<bool> ref;
+		ref.resize(face.mNumVertices);
+
+		for (U32 i = 0; i < ref.size(); ++i)
+		{
+			ref[i] = false;
+		}
+
+		for (U32 i = 0; i < face.mNumIndices; ++i)
+		{ 
+			ref[face.mIndices[i]] = true;
+		}
+
+		U32 unref_count = 0;
+		for (U32 i = 0; i < ref.size(); ++i)
+		{
+			if (!ref[i])
+			{
+				//vertex is unreferenced
+				face.mVertices.erase(face.mVertices.begin()+(i-unref_count));
+				U16 idx = (U16) (i-unref_count);
+
+				for (U32 j = 0; j < face.mNumIndices; ++j)
+				{ //decrement every index array value greater than idx
+					if (face.mIndices[j] > idx)
+					{
+						--face.mIndices[j];
+					}
+				}
+				++unref_count;
+			}
+		}
+
+		if (face.mVertices.empty() || face.mIndices.empty())
+		{ //face is empty, remove it
+			iter = mVolumeFaces.erase(cur_iter);
+		}
+	}
+#endif
+}
+
+void LLModel::normalizeVolumeFaces()
+{
+
+	// ensure we don't have too many faces
+	if (mVolumeFaces.size() > LL_SCULPT_MESH_MAX_FACES)
+		mVolumeFaces.resize(LL_SCULPT_MESH_MAX_FACES);
+	
+	if (!mVolumeFaces.empty())
+	{
+		LLVector4a min, max;
+		
+		if (mVolumeFaces[0].mNumVertices <= 0)
+		{
+			llerrs << "WTF?" << llendl;
+		}
+
+		min = mVolumeFaces[0].mExtents[0];
+		max = mVolumeFaces[0].mExtents[1];
+
+		for (U32 i = 1; i < mVolumeFaces.size(); ++i)
+		{
+			LLVolumeFace& face = mVolumeFaces[i];
+
+			if (face.mNumVertices <= 0)
+			{
+				llerrs << "WTF?" << llendl;
+			}
+
+			update_min_max(min, max, face.mExtents[0]);
+			update_min_max(min, max, face.mExtents[1]);
+		}
+
+		LLVector4a trans;
+		trans.setAdd(min, max);
+		trans.mul(-0.5f);
+		LLVector4a size;
+		size.setSub(max, min);
+
+		F32 scale = 1.f/llmax(llmax(size[0], size[1]), size[2]);
+
+		for (U32 i = 0; i < mVolumeFaces.size(); ++i)
+		{
+			LLVolumeFace& face = mVolumeFaces[i];
+				
+			face.mExtents[0].add(trans);
+			face.mExtents[0].mul(scale);
+
+			face.mExtents[1].add(trans);
+			face.mExtents[1].mul(scale);
+
+			LLVector4a* pos = (LLVector4a*) face.mPositions;
+			for (U32 j = 0; j < face.mNumVertices; ++j)
+			{
+				pos[j].add(trans);
+				pos[j].mul(scale);
+			}
+		}
+
+		mNormalizedScale = LLVector3(1,1,1) / scale;
+		mNormalizedTranslation.set(trans.getF32ptr());
+		mNormalizedTranslation *= -1.f; 
+	}
+}
+
+void LLModel::getNormalizedScaleTranslation(LLVector3& scale_out, LLVector3& translation_out)
+{
+	scale_out = mNormalizedScale;
+	translation_out = mNormalizedTranslation;
+}
+
+void LLModel::setNumVolumeFaces(S32 count)
+{
+	mVolumeFaces.resize(count);
+}
+
+void LLModel::setVolumeFaceData(S32 f, 
+								LLStrider<LLVector3> pos, 
+								LLStrider<LLVector3> norm, 
+								LLStrider<LLVector2> tc, 
+								LLStrider<U16> ind, 
+								U32 num_verts, 
+								U32 num_indices)
+{
+	LLVolumeFace& face = mVolumeFaces[f];
+
+	face.resizeVertices(num_verts);
+	face.resizeIndices(num_indices);
+
+	LLVector4a::memcpyNonAliased16((F32*) face.mPositions, (F32*) pos.get(), num_verts*4*sizeof(F32));
+	LLVector4a::memcpyNonAliased16((F32*) face.mNormals, (F32*) norm.get(), num_verts*4*sizeof(F32));
+	LLVector4a::memcpyNonAliased16((F32*) face.mTexCoords, (F32*) tc.get(), num_verts*2*sizeof(F32));
+	U32 size = (num_indices*2+0xF)&~0xF;
+	LLVector4a::memcpyNonAliased16((F32*) face.mIndices, (F32*) ind.get(), size);
+}
+
+void LLModel::appendFaces(LLModel *model, LLMatrix4 &transform, LLMatrix4& norm_mat)
+{
+	if (mVolumeFaces.empty())
+	{
+		setNumVolumeFaces(1);
+	}
+
+	LLVolumeFace& face = mVolumeFaces[mVolumeFaces.size()-1];
+
+
+	for (S32 i = 0; i < model->getNumFaces(); ++i)
+	{
+		face.appendFace(model->getVolumeFace(i), transform, norm_mat);
+	}
+
+}
+
+void LLModel::appendFace(const LLVolumeFace& src_face, std::string src_material, LLMatrix4& mat, LLMatrix4& norm_mat)
+{
+	S32 rindex = getNumVolumeFaces()-1; 
+	if (rindex == -1 || 
+		mVolumeFaces[rindex].mNumVertices + src_face.mNumVertices >= 65536)
+	{ //empty or overflow will occur, append new face
+		LLVolumeFace cur_face;
+		cur_face.appendFace(src_face, mat, norm_mat);
+		addFace(cur_face);
+		mMaterialList.push_back(src_material);
+	}
+	else
+	{ //append to existing end face
+		mVolumeFaces.rbegin()->appendFace(src_face, mat, norm_mat);
+	}
+}
+
+void LLModel::addFace(const LLVolumeFace& face)
+{
+	if (face.mNumVertices == 0)
+	{
+		llerrs << "Cannot add empty face." << llendl;
+	}
+
+	mVolumeFaces.push_back(face);
+
+	if (mVolumeFaces.size() > MAX_MODEL_FACES)
+	{
+		llerrs << "Model prims cannot have more than " << MAX_MODEL_FACES << " faces!" << llendl;
+	}
+}
+
+
+void LLModel::smoothNormals(F32 angle_cutoff)
+{
+	//smooth normals for all faces by:
+	// 1 - Create faceted copy of face with no texture coordinates
+	// 2 - Weld vertices in faceted copy that are shared between triangles with less than "angle_cutoff" difference between normals
+	// 3 - Generate smoothed set of normals based on welding results
+	// 4 - Create faceted copy of face with texture coordinates
+	// 5 - Copy smoothed normals to faceted copy, using closest normal to triangle normal where more than one normal exists for a given position
+	// 6 - Remove redundant vertices from new faceted (now smooth) copy
+
+	angle_cutoff = cosf(angle_cutoff);
+	for (U32 j = 0; j < mVolumeFaces.size(); ++j)
+	{
+		LLVolumeFace& vol_face = mVolumeFaces[j];
+
+		//create faceted copy of current face with no texture coordinates (step 1)
+		LLVolumeFace faceted;
+
+		LLVector4a* src_pos = (LLVector4a*) vol_face.mPositions;
+		//LLVector4a* src_norm = (LLVector4a*) vol_face.mNormals;
+
+
+		//bake out triangles into temporary face, clearing normals and texture coordinates
+		for (U32 i = 0; i < vol_face.mNumIndices; ++i)
+		{
+			U32 idx = vol_face.mIndices[i];
+			LLVolumeFace::VertexData v;
+			v.setPosition(src_pos[idx]); 
+			v.getNormal().clear();
+			v.mTexCoord.clear();
+			faceted.pushVertex(v);
+			faceted.pushIndex(i);
+		}
+
+		//generate normals for temporary face
+		for (U32 i = 0; i < faceted.mNumIndices; i += 3)
+		{ //for each triangle
+			U16 i0 = faceted.mIndices[i+0];
+			U16 i1 = faceted.mIndices[i+1];
+			U16 i2 = faceted.mIndices[i+2];
+			
+			LLVector4a& p0 = faceted.mPositions[i0];
+			LLVector4a& p1 = faceted.mPositions[i1];
+			LLVector4a& p2 = faceted.mPositions[i2];
+
+			LLVector4a& n0 = faceted.mNormals[i0];
+			LLVector4a& n1 = faceted.mNormals[i1];
+			LLVector4a& n2 = faceted.mNormals[i2];
+
+			LLVector4a lhs, rhs;
+			lhs.setSub(p1, p0);
+			rhs.setSub(p2, p0);
+
+			n0.setCross3(lhs, rhs);
+			n0.normalize3fast();
+			n1 = n0;
+			n2 = n0;
+		}
+
+		//weld vertices in temporary face, respecting angle_cutoff (step 2)
+		faceted.optimize(angle_cutoff);
+
+		//generate normals for welded face based on new topology (step 3)
+
+		for (U32 i = 0; i < faceted.mNumVertices; i++)
+		{
+			faceted.mNormals[i].clear();
+		}
+
+		for (U32 i = 0; i < faceted.mNumIndices; i += 3)
+		{ //for each triangle
+			U16 i0 = faceted.mIndices[i+0];
+			U16 i1 = faceted.mIndices[i+1];
+			U16 i2 = faceted.mIndices[i+2];
+			
+			LLVector4a& p0 = faceted.mPositions[i0];
+			LLVector4a& p1 = faceted.mPositions[i1];
+			LLVector4a& p2 = faceted.mPositions[i2];
+
+			LLVector4a& n0 = faceted.mNormals[i0];
+			LLVector4a& n1 = faceted.mNormals[i1];
+			LLVector4a& n2 = faceted.mNormals[i2];
+
+			LLVector4a lhs, rhs;
+			lhs.setSub(p1, p0);
+			rhs.setSub(p2, p0);
+
+			LLVector4a n;
+			n.setCross3(lhs, rhs);
+
+			n0.add(n);
+			n1.add(n);
+			n2.add(n);
+		}
+
+		//normalize normals and build point map
+		LLVolumeFace::VertexMapData::PointMap point_map;
+
+		for (U32 i = 0; i < faceted.mNumVertices; ++i)
+		{
+			faceted.mNormals[i].normalize3fast();
+
+			LLVolumeFace::VertexMapData v;
+			v.setPosition(faceted.mPositions[i]);
+			v.setNormal(faceted.mNormals[i]);
+
+			point_map[LLVector3(v.getPosition().getF32ptr())].push_back(v);
+		}
+
+		//create faceted copy of current face with texture coordinates (step 4)
+		LLVolumeFace new_face;
+
+		//bake out triangles into new face
+		for (U32 i = 0; i < vol_face.mNumIndices; ++i)
+		{
+			U32 idx = vol_face.mIndices[i];
+			LLVolumeFace::VertexData v;
+			v.setPosition(vol_face.mPositions[idx]);
+			v.setNormal(vol_face.mNormals[idx]);
+			v.mTexCoord = vol_face.mTexCoords[idx];
+
+			new_face.pushVertex(v);
+			new_face.pushIndex(i);
+		}
+
+		//generate normals for new face
+		for (U32 i = 0; i < new_face.mNumIndices; i += 3)
+		{ //for each triangle
+			U16 i0 = new_face.mIndices[i+0];
+			U16 i1 = new_face.mIndices[i+1];
+			U16 i2 = new_face.mIndices[i+2];
+			
+			LLVector4a& p0 = new_face.mPositions[i0];
+			LLVector4a& p1 = new_face.mPositions[i1];
+			LLVector4a& p2 = new_face.mPositions[i2];
+
+			LLVector4a& n0 = new_face.mNormals[i0];
+			LLVector4a& n1 = new_face.mNormals[i1];
+			LLVector4a& n2 = new_face.mNormals[i2];
+
+			LLVector4a lhs, rhs;
+			lhs.setSub(p1, p0);
+			rhs.setSub(p2, p0);
+
+			n0.setCross3(lhs, rhs);
+			n0.normalize3fast();
+			n1 = n0;
+			n2 = n0;
+		}
+
+		//swap out normals in new_face with best match from point map (step 5)
+		for (U32 i = 0; i < new_face.mNumVertices; ++i)
+		{
+			//LLVolumeFace::VertexData v = new_face.mVertices[i];
+
+			LLVector4a ref_norm = new_face.mNormals[i];
+
+			LLVolumeFace::VertexMapData::PointMap::iterator iter = point_map.find(LLVector3(new_face.mPositions[i].getF32ptr()));
+
+			if (iter != point_map.end())
+			{
+				F32 best = -2.f;
+				for (U32 k = 0; k < iter->second.size(); ++k)
+				{
+					LLVector4a& n = iter->second[k].getNormal();
+
+					if (!iter->second[k].getPosition().equals3(new_face.mPositions[i]))
+					{
+						llerrs << "WTF?" << llendl;
+					}
+
+					F32 cur = n.dot3(ref_norm).getF32();
+
+					if (cur > best)
+					{
+						best = cur;
+						new_face.mNormals[i] = n;
+					}
+				}
+			}
+		}
+		
+		//remove redundant vertices from new face (step 6)
+		new_face.optimize();
+
+		mVolumeFaces[j] = new_face;
+	}
+}
+
+//static
+std::string LLModel::getElementLabel(daeElement *element)
+{ // try to get a decent label for this element
+	// if we have a name attribute, use it
+	std::string name = element->getAttribute("name");
+	if (name.length())
+	{
+		return name;
+	}
+
+	// if we have an ID attribute, use it
+	if (element->getID())
+	{
+		return std::string(element->getID());
+	}
+
+	// if we have a parent, use it
+	daeElement* parent = element->getParent();
+	if (parent)
+	{
+		// if parent has a name, use it
+		std::string name = parent->getAttribute("name");
+		if (name.length())
+		{
+			return name;
+		}
+
+		// if parent has an ID, use it
+		if (parent->getID())
+		{
+			return std::string(parent->getID());
+		}
+	}
+
+	// try to use our type
+	daeString element_name = element->getElementName();
+	if (element_name)
+	{
+		return std::string(element_name);
+	}
+
+	// if all else fails, use "object"
+	return std::string("object");
+}
+
+//static 
+LLModel* LLModel::loadModelFromDae(std::string filename)
+{
+	LLVolumeParams volume_params;
+	volume_params.setType(LL_PCODE_PROFILE_SQUARE, LL_PCODE_PATH_LINE);
+	LLModel* ret = new LLModel(volume_params, 0.f); 
+	ret->createVolumeFacesFromFile(filename);
+	return ret;
+}
+
+//static 
+LLModel* LLModel::loadModelFromDomMesh(domMesh *mesh)
+{
+	LLVolumeParams volume_params;
+	volume_params.setType(LL_PCODE_PROFILE_SQUARE, LL_PCODE_PATH_LINE);
+	LLModel* ret = new LLModel(volume_params, 0.f); 
+	ret->createVolumeFacesFromDomMesh(mesh);
+	ret->mLabel = getElementLabel(mesh);
+	return ret;
+}
+
+//static 
+LLSD LLModel::writeModel(std::string filename, LLModel* physics, LLModel* high, LLModel* medium, LLModel* low, LLModel* impostor, LLModel::physics_shape& decomp, BOOL nowrite)
+{
+	std::ofstream os(filename.c_str(), std::ofstream::out | std::ofstream::binary);
+
+	LLSD header = writeModel(os, physics, high, medium, low, impostor, decomp, nowrite);
+
+	os.close();
+
+	return header;
+}
+
+//static
+LLSD LLModel::writeModel(std::ostream& ostr, LLModel* physics, LLModel* high, LLModel* medium, LLModel* low, LLModel* impostor, LLModel::physics_shape& decomp, BOOL nowrite)
+{
+	LLSD mdl;
+
+	LLModel* model[] = 
+	{
+		impostor,
+		low,
+		medium,
+		high,
+		physics
+	};
+
+	bool skinning = high && !high->mSkinWeights.empty();
+
+	if (skinning)
+	{ //write skinning block
+		if (high->mJointList.size() != high->mInvBindMatrix.size())
+		{
+			llerrs << "WTF?" << llendl;
+		}
+
+		for (U32 i = 0; i < high->mJointList.size(); ++i)
+		{
+			mdl["skin"]["joint_names"][i] = high->mJointList[i];
+
+			for (U32 j = 0; j < 4; j++)
+			{
+				for (U32 k = 0; k < 4; k++)
+				{
+					mdl["skin"]["inverse_bind_matrix"][i][j*4+k] = high->mInvBindMatrix[i].mMatrix[j][k]; 
+				}
+			}
+		}
+
+		for (U32 i = 0; i < 4; i++)
+		{
+			for (U32 j = 0; j < 4; j++)
+			{
+				mdl["skin"]["bind_shape_matrix"][i*4+j] = high->mBindShapeMatrix.mMatrix[i][j];
+			}
+		}
+	}
+
+	if (!decomp.empty())
+	{
+		//write decomposition block
+		// ["decomposition"]["HullList"] -- list of 8 bit integers, each entry represents a hull with specified number of points
+		// ["decomposition"]["PositionDomain"]["Min"/"Max"]
+		// ["decomposition"]["Position"] -- list of 16-bit integers to be decoded to given domain, encoded 3D points
+	
+		//get minimum and maximum
+		LLVector3 min = decomp[0][0];
+		LLVector3 max = min;
+
+		LLSD::Binary hulls(decomp.size());
+
+		U32 total = 0;
+
+		for (U32 i = 0; i < decomp.size(); ++i)
+		{
+			U32 size = decomp[i].size();
+			total += size;
+			hulls[i] = (U8) size;
+
+			for (U32 j = 0; j < decomp[i].size(); ++j)
+			{
+				update_min_max(min, max, decomp[i][j]);
+			}
+		}
+
+		mdl["decomposition"]["Min"] = min.getValue();
+		mdl["decomposition"]["Max"] = max.getValue();
+		mdl["decomposition"]["HullList"] = hulls;
+		
+		LLSD::Binary p(total*3*2);
+
+		LLVector3 range = max-min;
+
+		U32 vert_idx = 0;
+		for (U32 i = 0; i < decomp.size(); ++i)
+		{
+			for (U32 j = 0; j < decomp[i].size(); ++j)
+			{
+				for (U32 k = 0; k < 3; k++)
+				{
+					//convert to 16-bit normalized across domain
+					U16 val = (U16) (((decomp[i][j].mV[k]-min.mV[k])/range.mV[k])*65535);
+
+					U8* buff = (U8*) &val;
+					//write to binary buffer
+					p[vert_idx++] = buff[0];
+					p[vert_idx++] = buff[1];
+
+					if (vert_idx > p.size())
+					{
+						llerrs << "WTF?" << llendl;
+					}
+				}
+			}
+		}
+
+		mdl["decomposition"]["Position"] = p;
+	}
+
+	for (U32 idx = 0; idx < MODEL_NAMES_LENGTH; ++idx)
+	{
+		if (model[idx] && model[idx]->getNumVolumeFaces() > 0)
+		{
+			LLVector3 min_pos = LLVector3(model[idx]->getVolumeFace(0).mPositions[0].getF32ptr());
+			LLVector3 max_pos = min_pos;
+
+			//find position domain
+			for (S32 i = 0; i < model[idx]->getNumVolumeFaces(); ++i)
+			{ //for each face
+				const LLVolumeFace& face = model[idx]->getVolumeFace(i);
+				for (U32 j = 0; j < face.mNumVertices; ++j)
+				{
+					update_min_max(min_pos, max_pos, face.mPositions[j].getF32ptr());
+				}
+			}
+
+			LLVector3 pos_range = max_pos - min_pos;
+
+			for (S32 i = 0; i < model[idx]->getNumVolumeFaces(); ++i)
+			{ //for each face
+				const LLVolumeFace& face = model[idx]->getVolumeFace(i);
+				if (!face.mNumVertices)
+				{ //don't export an empty face
+					continue;
+				}
+				LLSD::Binary verts(face.mNumVertices*3*2);
+				LLSD::Binary tc(face.mNumVertices*2*2);
+				LLSD::Binary normals(face.mNumVertices*3*2);
+				LLSD::Binary indices(face.mNumIndices*2);
+
+				U32 vert_idx = 0;
+				U32 norm_idx = 0;
+				U32 tc_idx = 0;
+			
+				LLVector2* ftc = (LLVector2*) face.mTexCoords;
+				LLVector2 min_tc = ftc[0];
+				LLVector2 max_tc = min_tc;
+	
+				//get texture coordinate domain
+				for (U32 j = 0; j < face.mNumVertices; ++j)
+				{
+					update_min_max(min_tc, max_tc, ftc[j]);
+				}
+
+				LLVector2 tc_range = max_tc - min_tc;
+
+				for (U32 j = 0; j < face.mNumVertices; ++j)
+				{ //for each vert
+		
+					F32* pos = face.mPositions[j].getF32ptr();
+					F32* norm = face.mNormals[j].getF32ptr();
+
+					//position + normal
+					for (U32 k = 0; k < 3; ++k)
+					{ //for each component
+
+						//convert to 16-bit normalized across domain
+						U16 val = (U16) (((pos[k]-min_pos.mV[k])/pos_range.mV[k])*65535);
+
+						U8* buff = (U8*) &val;
+						//write to binary buffer
+						verts[vert_idx++] = buff[0];
+						verts[vert_idx++] = buff[1];
+						
+						//convert to 16-bit normalized
+						val = (U16) ((norm[k]+1.f)*0.5f*65535);
+
+						//write to binary buffer
+						normals[norm_idx++] = buff[0];
+						normals[norm_idx++] = buff[1];
+					}
+
+					F32* src_tc = (F32*) face.mTexCoords[j].mV;
+
+					//texcoord
+					for (U32 k = 0; k < 2; ++k)
+					{ //for each component
+						//convert to 16-bit normalized
+						U16 val = (U16) ((src_tc[k]-min_tc.mV[k])/tc_range.mV[k]*65535);
+
+						U8* buff = (U8*) &val;
+						//write to binary buffer
+						tc[tc_idx++] = buff[0];
+						tc[tc_idx++] = buff[1];
+					}
+					
+				}
+
+				U32 idx_idx = 0;
+				for (U32 j = 0; j < face.mNumIndices; ++j)
+				{
+					U8* buff = (U8*) &(face.mIndices[j]);
+					indices[idx_idx++] = buff[0];
+					indices[idx_idx++] = buff[1];
+				}
+
+				//write out face data
+				mdl[model_names[idx]][i]["PositionDomain"]["Min"] = min_pos.getValue();
+				mdl[model_names[idx]][i]["PositionDomain"]["Max"] = max_pos.getValue();
+
+				mdl[model_names[idx]][i]["TexCoord0Domain"]["Min"] = min_tc.getValue();
+				mdl[model_names[idx]][i]["TexCoord0Domain"]["Max"] = max_tc.getValue();
+
+				mdl[model_names[idx]][i]["Position"] = verts;
+				mdl[model_names[idx]][i]["Normal"] = normals;
+				mdl[model_names[idx]][i]["TexCoord0"] = tc;
+				mdl[model_names[idx]][i]["TriangleList"] = indices;
+
+				if (skinning)
+				{
+					//write out skin weights
+
+					//each influence list entry is up to 4 24-bit values
+					// first 8 bits is bone index
+					// last 16 bits is bone influence weight
+					// a bone index of 0xFF signifies no more influences for this vertex
+
+					std::stringstream ostr;
+
+					for (U32 j = 0; j < face.mNumVertices; ++j)
+					{
+						LLVector3 pos(face.mPositions[j].getF32ptr());
+
+						weight_list& weights = high->getJointInfluences(pos);
+
+						if (weights.size() > 4)
+						{
+							llerrs << "WTF?" << llendl;
+						}
+
+						S32 count = 0;
+						for (weight_list::iterator iter = weights.begin(); iter != weights.end(); ++iter)
+						{
+							if (iter->mJointIdx < 255 && iter->mJointIdx >= 0)
+							{
+								U8 idx = (U8) iter->mJointIdx;
+								ostr.write((const char*) &idx, 1);
+
+								U16 influence = (U16) (iter->mWeight*65535);
+								ostr.write((const char*) &influence, 2);
+
+								++count;
+							}		
+						}
+						U8 end_list = 0xFF;
+						if (count < 4)
+						{
+							ostr.write((const char*) &end_list, 1);
+						}
+					}
+
+					//copy ostr to binary buffer
+					std::string data = ostr.str();
+					const U8* buff = (U8*) data.data();
+					U32 bytes = data.size();
+
+					LLSD::Binary w(bytes);
+					for (U32 j = 0; j < bytes; ++j)
+					{
+						w[j] = buff[j];
+					}
+
+					mdl[model_names[idx]][i]["Weights"] = w;
+				}
+			}
+		}
+	}
+	
+	return writeModelToStream(ostr, mdl, nowrite);
+}
+
+LLSD LLModel::writeModelToStream(std::ostream& ostr, LLSD& mdl, BOOL nowrite)
+{
+	U32 bytes = 0;
+	
+	std::string::size_type cur_offset = 0;
+
+	LLSD header;
+
+	std::string skin;
+
+	if (mdl.has("skin"))
+	{ //write out skin block
+		skin = zip_llsd(mdl["skin"]);
+
+		U32 size = skin.size();
+		if (size > 0)
+		{
+			header["skin"]["offset"] = (LLSD::Integer) cur_offset;
+			header["skin"]["size"] = (LLSD::Integer) size;
+			cur_offset += size;
+			bytes += size;
+		}
+		else
+		{
+			llerrs << "WTF?" << llendl;
+		}
+	}
+
+	std::string decomposition;
+
+	if (mdl.has("decomposition"))
+	{ //write out convex decomposition
+		decomposition = zip_llsd(mdl["decomposition"]);
+
+		U32 size = decomposition.size();
+		if (size > 0)
+		{
+			header["decomposition"]["offset"] = (LLSD::Integer) cur_offset;
+			header["decomposition"]["size"] = (LLSD::Integer) size;
+			cur_offset += size;
+			bytes += size;
+		}
+	}
+
+	std::string out[MODEL_NAMES_LENGTH];
+
+	for (S32 i = 0; i < MODEL_NAMES_LENGTH; i++)
+	{
+		if (mdl.has(model_names[i]))
+		{
+			out[i] = zip_llsd(mdl[model_names[i]]);
+
+			U32 size = out[i].size();
+
+			header[model_names[i]]["offset"] = (LLSD::Integer) cur_offset;
+			header[model_names[i]]["size"] = (LLSD::Integer) size;
+			cur_offset += size;
+			bytes += size;
+		}
+		else
+		{
+			header[model_names[i]]["offset"] = -1;
+			header[model_names[i]]["size"] = 0;
+		}
+	}
+
+	if (!nowrite)
+	{
+		LLSDSerialize::serialize(header, ostr, LLSDSerialize::LLSD_BINARY);
+
+		if (!skin.empty())
+		{ //write skin block
+			ostr.write((const char*) skin.data(), header["skin"]["size"].asInteger());
+		}
+
+		if (!decomposition.empty())
+		{ //write decomposition block
+			ostr.write((const char*) decomposition.data(), header["decomposition"]["size"].asInteger());
+		}
+
+		for (S32 i = 0; i < MODEL_NAMES_LENGTH; i++)
+		{
+			if (!out[i].empty())
+			{
+				ostr.write((const char*) out[i].data(), header[model_names[i]]["size"].asInteger());
+			}
+		}
+	}
+	
+	return header;
+}
+
+//static 
+LLModel* LLModel::loadModelFromAsset(std::string filename, S32 lod)
+{
+	return NULL;
+}
+
+LLModel::weight_list& LLModel::getJointInfluences(const LLVector3& pos)
+{
+	weight_map::iterator iter = mSkinWeights.find(pos);
+	
+	if (iter != mSkinWeights.end())
+	{
+		if ((iter->first - pos).magVec() > 0.1f)
+		{
+			llerrs << "WTF?" << llendl;
+		}
+
+		return iter->second;
+	}
+	else
+	{  //no exact match found, get closest point
+		iter = mSkinWeights.begin();
+		weight_map::iterator best = iter;
+
+		F32 min_dist = (iter->first - pos).magVecSquared();
+
+		while (++iter != mSkinWeights.end())
+		{
+			F32 dist = (iter->first - pos).magVecSquared();
+			if (dist < min_dist)
+			{
+				best = iter;
+				min_dist = dist;
+			}
+		}
+
+		return best->second;
+	}					
+}
+
+#endif
+
diff --git a/indra/llprimitive/llmodel.h b/indra/llprimitive/llmodel.h
new file mode 100644
index 0000000000..a91c80d5b7
--- /dev/null
+++ b/indra/llprimitive/llmodel.h
@@ -0,0 +1,179 @@
+/** 
+ * @file llmodel.h
+ * @brief Model handling class definitions
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ * 
+ * Copyright (c) 2001-2007, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLMODEL_H
+#define LL_LLMODEL_H
+
+#include "llvolume.h"
+#include "v4math.h"
+#include "m4math.h"
+
+#if LL_MESH_ENABLED
+
+class daeElement;
+class domMesh;
+
+#define MAX_MODEL_FACES 8
+
+class LLModel : public LLVolume
+{
+public:
+
+	enum
+	{
+		LOD_IMPOSTOR = 0,
+		LOD_LOW,
+		LOD_MEDIUM,
+		LOD_HIGH,
+		LOD_PHYSICS,
+		NUM_LODS
+	};
+	
+	//physics shape is a vector of convex hulls
+	//each convex hull is a set of points
+	typedef  std::vector<std::vector<LLVector3> > physics_shape;
+	
+	LLModel(LLVolumeParams& params, F32 detail);
+	static LLSD writeModel(std::string filename, LLModel* physics, LLModel* high, LLModel* medium, LLModel* low, LLModel* imposotr, LLModel::physics_shape& physics_shape, BOOL nowrite = FALSE);
+	static LLSD writeModel(std::ostream& ostr, LLModel* physics, LLModel* high, LLModel* medium, LLModel* low, LLModel* imposotr, LLModel::physics_shape& physics_shape, BOOL nowrite = FALSE);
+	static LLSD writeModelToStream(std::ostream& ostr, LLSD& mdl, BOOL nowrite = FALSE);
+	static LLModel* loadModelFromAsset(std::string filename, S32 lod);
+	static LLModel* loadModelFromDae(std::string filename);
+	static LLModel* loadModelFromDomMesh(domMesh* mesh);
+	static std::string getElementLabel(daeElement* element);
+
+	void appendFaces(LLModel* model, LLMatrix4& transform, LLMatrix4& normal_transform);
+	void appendFace(const LLVolumeFace& src_face, std::string src_material, LLMatrix4& mat, LLMatrix4& norm_mat);
+
+	void setNumVolumeFaces(S32 count);
+	void setVolumeFaceData(S32 f, 
+						LLStrider<LLVector3> pos, 
+						LLStrider<LLVector3> norm, 
+						LLStrider<LLVector2> tc, 
+						LLStrider<U16> ind, 
+						U32 num_verts, 
+						U32 num_indices);
+
+	void smoothNormals(F32 angle_cutoff);
+
+	void addFace(const LLVolumeFace& face);
+
+	void normalizeVolumeFaces();
+	void optimizeVolumeFaces();
+
+
+	U32 getResourceCost();
+	void getNormalizedScaleTranslation(LLVector3& scale_out, LLVector3& translation_out);
+	std::vector<std::string> mMaterialList;
+
+	//data used for skin weights
+	class JointWeight
+	{
+	public:
+		S32 mJointIdx;
+		F32 mWeight;
+		
+		JointWeight()
+		{
+			mJointIdx = 0;
+			mWeight = 0.f;
+		}
+
+		JointWeight(S32 idx, F32 weight)
+			: mJointIdx(idx), mWeight(weight)
+		{
+		}
+
+		bool operator<(const JointWeight& rhs) const
+		{
+			if (mWeight == rhs.mWeight)
+			{
+				return mJointIdx < rhs.mJointIdx;
+			}
+
+			return mWeight < rhs.mWeight;
+		}
+
+	};
+
+	struct CompareWeightGreater
+	{
+		bool operator()(const JointWeight& lhs, const JointWeight& rhs)
+		{
+			return rhs < lhs; // strongest = first
+		}
+	};
+
+	//copy of position array for this model -- mPosition[idx].mV[X,Y,Z]
+	std::vector<LLVector3> mPosition;
+
+	//map of positions to skin weights --- mSkinWeights[pos].mV[0..4] == <joint_index>.<weight>
+	//joint_index corresponds to mJointList
+	typedef std::vector<JointWeight> weight_list;
+	typedef std::map<LLVector3, weight_list > weight_map;
+	weight_map mSkinWeights;
+
+	//get list of weight influences closest to given position
+	weight_list& getJointInfluences(const LLVector3& pos);
+
+	//should always be true that mJointList[mJointMap["foo"]] == "foo"
+
+	//map of joint names to joint index
+	std::map<std::string, U32> mJointMap;
+
+	//list of joint names
+	std::vector<std::string> mJointList;
+
+	LLMatrix4 mBindShapeMatrix;
+	std::vector<LLMatrix4> mInvBindMatrix;
+
+	std::string mLabel;
+
+	LLVector3 mNormalizedScale;
+	LLVector3 mNormalizedTranslation;
+
+	//physics shape
+	physics_shape mPhysicsShape;
+
+	LLVector3 mPhysicsCenter;
+	std::vector<LLVector3> mHullCenter;
+	U32 mPhysicsPoints;
+
+protected:
+	void addVolumeFacesFromDomMesh(domMesh* mesh);
+	virtual BOOL createVolumeFacesFromFile(const std::string& file_name);
+	virtual BOOL createVolumeFacesFromDomMesh(domMesh *mesh);
+};
+
+
+#endif
+
+#endif //LL_LLMODEL_H
diff --git a/indra/newview/app_settings/shaders/class1/avatar/objectSkinV.glsl b/indra/newview/app_settings/shaders/class1/avatar/objectSkinV.glsl
new file mode 100644
index 0000000000..eef6556fba
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/avatar/objectSkinV.glsl
@@ -0,0 +1,30 @@
+/** 
+ * @file objectSkinV.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#version 120
+
+attribute vec4 object_weight;  
+
+uniform mat4 matrixPalette[64];
+
+mat4 getObjectSkinnedTransform()
+{
+	int i; 
+	
+	vec4 w = fract(object_weight);
+	vec4 index = floor(object_weight);
+	
+	float scale = 1.0/(w.x+w.y+w.z+w.w);
+	w *= scale;
+	
+	mat4 mat = matrixPalette[int(index.x)]*w.x;
+	mat += matrixPalette[int(index.y)]*w.y;
+	mat += matrixPalette[int(index.z)]*w.z;
+	mat += matrixPalette[int(index.w)]*w.w;
+		
+	return mat;
+}
diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaSkinnedV.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaSkinnedV.glsl
new file mode 100644
index 0000000000..fde0e97713
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/deferred/alphaSkinnedV.glsl
@@ -0,0 +1,75 @@
+/** 
+ * @file alphaSkinnedV.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
+mat4 getObjectSkinnedTransform();
+void calcAtmospherics(vec3 inPositionEye);
+
+float calcDirectionalLight(vec3 n, vec3 l);
+float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_pointlight);
+
+vec3 atmosAmbient(vec3 light);
+vec3 atmosAffectDirectionalLight(float lightIntensity);
+vec3 scaleDownLight(vec3 light);
+vec3 scaleUpLight(vec3 light);
+
+varying vec3 vary_position;
+varying vec3 vary_ambient;
+varying vec3 vary_directional;
+varying vec3 vary_normal;
+varying vec3 vary_light;
+
+void main()
+{
+	gl_TexCoord[0] = gl_MultiTexCoord0;
+				
+	vec4 pos;
+	vec3 norm;
+	
+	mat4 trans = getObjectSkinnedTransform();
+	trans = gl_ModelViewMatrix * trans;
+	
+	pos = trans * gl_Vertex;
+	
+	norm = gl_Vertex.xyz + gl_Normal.xyz;
+	norm = normalize(( trans*vec4(norm, 1.0) ).xyz-pos.xyz);
+	
+	gl_Position = gl_ProjectionMatrix * pos;
+	
+	vary_position = pos.xyz;
+	vary_normal = norm;	
+	
+	calcAtmospherics(pos.xyz);
+
+	vec4 col = vec4(0.0, 0.0, 0.0, gl_Color.a);
+
+	// Collect normal lights (need to be divided by two, as we later multiply by 2)
+	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
+	col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation, gl_LightSource[3].specular.a);
+	col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation, gl_LightSource[4].specular.a);
+	col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].spotDirection.xyz, gl_LightSource[5].linearAttenuation, gl_LightSource[5].specular.a);
+	col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].spotDirection.xyz, gl_LightSource[6].linearAttenuation, gl_LightSource[6].specular.a);
+	col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].spotDirection.xyz, gl_LightSource[7].linearAttenuation, gl_LightSource[7].specular.a);
+	col.rgb += gl_LightSource[1].diffuse.rgb*calcDirectionalLight(norm, gl_LightSource[1].position.xyz);
+	col.rgb = scaleDownLight(col.rgb);
+	
+	// Add windlight lights
+	col.rgb += atmosAmbient(vec3(0.));
+	
+	vary_light = gl_LightSource[0].position.xyz;
+	
+	vary_ambient = col.rgb*gl_Color.rgb;
+	vary_directional = gl_Color.rgb*atmosAffectDirectionalLight(max(calcDirectionalLight(norm, gl_LightSource[0].position.xyz), (1.0-gl_Color.a)*(1.0-gl_Color.a)));
+	
+	col.rgb = min(col.rgb*gl_Color.rgb, 1.0);
+	
+	gl_FrontColor = col;
+
+	gl_FogFragCoord = pos.z;
+}
+
+
diff --git a/indra/newview/app_settings/shaders/class1/deferred/attachmentShadowF.glsl b/indra/newview/app_settings/shaders/class1/deferred/attachmentShadowF.glsl
new file mode 100644
index 0000000000..085ffddeec
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/deferred/attachmentShadowF.glsl
@@ -0,0 +1,16 @@
+/** 
+ * @file avatarShadowF.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+uniform sampler2D diffuseMap;
+
+
+void main() 
+{
+	//gl_FragColor = vec4(1,1,1,gl_Color.a * texture2D(diffuseMap, gl_TexCoord[0].xy).a);
+	gl_FragColor = vec4(1,1,1,1);
+}
+
diff --git a/indra/newview/app_settings/shaders/class1/deferred/attachmentShadowV.glsl b/indra/newview/app_settings/shaders/class1/deferred/attachmentShadowV.glsl
new file mode 100644
index 0000000000..1626e21cd8
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/deferred/attachmentShadowV.glsl
@@ -0,0 +1,25 @@
+/** 
+ * @file diffuseSkinnedV.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#version 120
+
+mat4 getObjectSkinnedTransform();
+
+void main()
+{
+	//transform vertex
+	gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
+	
+	mat4 mat = getObjectSkinnedTransform();
+	
+	mat = gl_ModelViewMatrix * mat;
+	vec3 pos = (mat*gl_Vertex).xyz;
+	
+	gl_FrontColor = gl_Color;
+	
+	gl_Position = gl_ProjectionMatrix*vec4(pos, 1.0);
+}
diff --git a/indra/newview/app_settings/shaders/class1/deferred/bumpSkinnedV.glsl b/indra/newview/app_settings/shaders/class1/deferred/bumpSkinnedV.glsl
new file mode 100644
index 0000000000..d884f2e4a5
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/deferred/bumpSkinnedV.glsl
@@ -0,0 +1,37 @@
+/** 
+ * @file bumpV.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#version 120
+
+varying vec3 vary_mat0;
+varying vec3 vary_mat1;
+varying vec3 vary_mat2;
+
+mat4 getObjectSkinnedTransform();
+
+void main()
+{
+	gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
+	
+	mat4 mat = getObjectSkinnedTransform();
+	
+	mat = gl_ModelViewMatrix * mat;
+	
+	vec3 pos = (mat*gl_Vertex).xyz;
+	
+	
+	vec3 n = normalize((mat * vec4(gl_Normal.xyz+gl_Vertex.xyz, 1.0)).xyz-pos.xyz);
+	vec3 b = normalize((mat * vec4(gl_MultiTexCoord2.xyz+gl_Vertex.xyz, 1.0)).xyz-pos.xyz);
+	vec3 t = cross(b, n);
+	
+	vary_mat0 = vec3(t.x, b.x, n.x);
+	vary_mat1 = vec3(t.y, b.y, n.y);
+	vary_mat2 = vec3(t.z, b.z, n.z);
+	
+	gl_Position = gl_ProjectionMatrix*vec4(pos, 1.0);
+	gl_FrontColor = gl_Color;
+}
diff --git a/indra/newview/app_settings/shaders/class1/deferred/diffuseSkinnedV.glsl b/indra/newview/app_settings/shaders/class1/deferred/diffuseSkinnedV.glsl
new file mode 100644
index 0000000000..9a45c03237
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/deferred/diffuseSkinnedV.glsl
@@ -0,0 +1,33 @@
+/** 
+ * @file diffuseSkinnedV.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#version 120
+
+varying vec3 vary_normal;
+
+mat4 getObjectSkinnedTransform();
+
+void main()
+{
+	gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
+	
+	mat4 mat = getObjectSkinnedTransform();
+	
+	mat = gl_ModelViewMatrix * mat;
+	vec3 pos = (mat*gl_Vertex).xyz;
+	
+	vec4 norm = gl_Vertex;
+	norm.xyz += gl_Normal.xyz;
+	norm.xyz = (mat*norm).xyz;
+	norm.xyz = normalize(norm.xyz-pos.xyz);
+
+	vary_normal = norm.xyz;
+			
+	gl_FrontColor = gl_Color;
+	
+	gl_Position = gl_ProjectionMatrix*vec4(pos, 1.0);
+}
diff --git a/indra/newview/app_settings/shaders/class1/lighting/lightFullbrightShinyWaterF.glsl b/indra/newview/app_settings/shaders/class1/lighting/lightFullbrightShinyWaterF.glsl
new file mode 100644
index 0000000000..4cde013eef
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/lighting/lightFullbrightShinyWaterF.glsl
@@ -0,0 +1,15 @@
+/** 
+ * @file lightFullbrightShinyWaterF.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+
+uniform sampler2D diffuseMap;
+uniform samplerCube environmentMap;
+
+void fullbright_shiny_lighting_water() 
+{
+	gl_FragColor = texture2D(diffuseMap, gl_TexCoord[0].xy);
+}
diff --git a/indra/newview/app_settings/shaders/class1/objects/fullbrightShinySkinnedV.glsl b/indra/newview/app_settings/shaders/class1/objects/fullbrightShinySkinnedV.glsl
new file mode 100644
index 0000000000..f0baeeeee5
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/objects/fullbrightShinySkinnedV.glsl
@@ -0,0 +1,39 @@
+/** 
+ * @file shinySimpleSkinnedV.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#version 120
+
+void calcAtmospherics(vec3 inPositionEye);
+mat4 getObjectSkinnedTransform();
+
+attribute vec4 object_weight;
+
+void main()
+{
+	mat4 mat = getObjectSkinnedTransform();
+	
+	mat = gl_ModelViewMatrix * mat;
+	vec3 pos = (mat*gl_Vertex).xyz;
+	
+	vec4 norm = gl_Vertex;
+	norm.xyz += gl_Normal.xyz;
+	norm.xyz = (mat*norm).xyz;
+	norm.xyz = normalize(norm.xyz-pos.xyz);
+		
+	vec3 ref = reflect(pos.xyz, -norm.xyz);
+
+	gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
+	gl_TexCoord[1] = gl_TextureMatrix[1]*vec4(ref,1.0);
+
+	calcAtmospherics(pos.xyz);
+
+	gl_FrontColor = gl_Color;
+	
+	gl_Position = gl_ProjectionMatrix*vec4(pos, 1.0);
+	
+	gl_FogFragCoord = pos.z;
+}
diff --git a/indra/newview/app_settings/shaders/class1/objects/fullbrightShinyWaterF.glsl b/indra/newview/app_settings/shaders/class1/objects/fullbrightShinyWaterF.glsl
new file mode 100644
index 0000000000..5e6e4c16b7
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/objects/fullbrightShinyWaterF.glsl
@@ -0,0 +1,13 @@
+/** 
+ * @file fullbrightShinyWaterF.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+void fullbright_shiny_lighting_water();
+
+void main() 
+{
+	fullbright_shiny_lighting_water();
+}
diff --git a/indra/newview/app_settings/shaders/class1/objects/fullbrightSkinnedV.glsl b/indra/newview/app_settings/shaders/class1/objects/fullbrightSkinnedV.glsl
new file mode 100644
index 0000000000..02ff3cc2a9
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/objects/fullbrightSkinnedV.glsl
@@ -0,0 +1,37 @@
+/** 
+ * @file fullbrightSkinnedV.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#version 120
+
+void calcAtmospherics(vec3 inPositionEye);
+mat4 getObjectSkinnedTransform();
+
+attribute vec4 object_weight;
+
+void main()
+{
+	//transform vertex
+	gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
+	
+	mat4 mat = getObjectSkinnedTransform();
+	
+	mat = gl_ModelViewMatrix * mat;
+	vec3 pos = (mat*gl_Vertex).xyz;
+	
+	vec4 norm = gl_Vertex;
+	norm.xyz += gl_Normal.xyz;
+	norm.xyz = (mat*norm).xyz;
+	norm.xyz = normalize(norm.xyz-pos.xyz);
+		
+	calcAtmospherics(pos.xyz);
+
+	gl_FrontColor = gl_Color;
+	
+	gl_Position = gl_ProjectionMatrix*vec4(pos, 1.0);
+		
+	gl_FogFragCoord = pos.z;
+}
diff --git a/indra/newview/app_settings/shaders/class1/objects/shinySimpleSkinnedV.glsl b/indra/newview/app_settings/shaders/class1/objects/shinySimpleSkinnedV.glsl
new file mode 100644
index 0000000000..4146646058
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/objects/shinySimpleSkinnedV.glsl
@@ -0,0 +1,39 @@
+/** 
+ * @file shinySimpleSkinnedV.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#version 120
+
+vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
+void calcAtmospherics(vec3 inPositionEye);
+mat4 getObjectSkinnedTransform();
+
+attribute vec4 object_weight;
+
+void main()
+{
+	mat4 mat = getObjectSkinnedTransform();
+	
+	mat = gl_ModelViewMatrix * mat;
+	vec3 pos = (mat*gl_Vertex).xyz;
+	
+	vec4 norm = gl_Vertex;
+	norm.xyz += gl_Normal.xyz;
+	norm.xyz = (mat*norm).xyz;
+	norm.xyz = normalize(norm.xyz-pos.xyz);
+		
+	vec3 ref = reflect(pos.xyz, -norm.xyz);
+
+	gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
+	gl_TexCoord[1] = gl_TextureMatrix[1]*vec4(ref,1.0);
+
+	calcAtmospherics(pos.xyz);
+
+	vec4 color = calcLighting(pos.xyz, norm.xyz, gl_Color, vec4(0.));
+	gl_FrontColor = color;
+	
+	gl_Position = gl_ProjectionMatrix*vec4(pos, 1.0);
+}
diff --git a/indra/newview/app_settings/shaders/class1/objects/simpleSkinnedV.glsl b/indra/newview/app_settings/shaders/class1/objects/simpleSkinnedV.glsl
new file mode 100644
index 0000000000..59944b8861
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/objects/simpleSkinnedV.glsl
@@ -0,0 +1,39 @@
+/** 
+ * @file simpleV.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#version 120
+
+vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
+void calcAtmospherics(vec3 inPositionEye);
+mat4 getObjectSkinnedTransform();
+
+attribute vec4 object_weight;
+
+void main()
+{
+	//transform vertex
+	gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
+	
+	mat4 mat = getObjectSkinnedTransform();
+	
+	mat = gl_ModelViewMatrix * mat;
+	vec3 pos = (mat*gl_Vertex).xyz;
+	
+	vec4 norm = gl_Vertex;
+	norm.xyz += gl_Normal.xyz;
+	norm.xyz = (mat*norm).xyz;
+	norm.xyz = normalize(norm.xyz-pos.xyz);
+		
+	calcAtmospherics(pos.xyz);
+
+	vec4 color = calcLighting(pos.xyz, norm.xyz, gl_Color, vec4(0.));
+	gl_FrontColor = color;
+	
+	gl_Position = gl_ProjectionMatrix*vec4(pos, 1.0);
+	
+	gl_FogFragCoord = pos.z;
+}
diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaSkinnedV.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaSkinnedV.glsl
new file mode 100644
index 0000000000..dc4663677b
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaSkinnedV.glsl
@@ -0,0 +1,84 @@
+/** 
+ * @file alphaSkinnedV.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
+void calcAtmospherics(vec3 inPositionEye);
+
+float calcDirectionalLight(vec3 n, vec3 l);
+float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_pointlight);
+mat4 getObjectSkinnedTransform();
+vec3 atmosAmbient(vec3 light);
+vec3 atmosAffectDirectionalLight(float lightIntensity);
+vec3 scaleDownLight(vec3 light);
+vec3 scaleUpLight(vec3 light);
+
+varying vec3 vary_ambient;
+varying vec3 vary_directional;
+varying vec3 vary_fragcoord;
+varying vec3 vary_position;
+varying vec3 vary_light;
+
+uniform float near_clip;
+uniform float shadow_offset;
+uniform float shadow_bias;
+
+void main()
+{
+	gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
+	
+	mat4 mat = getObjectSkinnedTransform();
+	
+	mat = gl_ModelViewMatrix * mat;
+	
+	vec3 pos = (mat*gl_Vertex).xyz;
+	
+	gl_Position = gl_ProjectionMatrix * vec4(pos, 1.0);
+	
+	vec4 n = gl_Vertex;
+	n.xyz += gl_Normal.xyz;
+	n.xyz = (mat*n).xyz;
+	n.xyz = normalize(n.xyz-pos.xyz);
+	
+	vec3 norm = n.xyz;
+	
+	float dp_directional_light = max(0.0, dot(norm, gl_LightSource[0].position.xyz));
+	vary_position = pos.xyz + gl_LightSource[0].position.xyz * (1.0-dp_directional_light)*shadow_offset;
+			
+	calcAtmospherics(pos.xyz);
+
+	//vec4 color = calcLighting(pos.xyz, norm, gl_Color, vec4(0.));
+	vec4 col = vec4(0.0, 0.0, 0.0, gl_Color.a);
+
+	// Collect normal lights (need to be divided by two, as we later multiply by 2)
+	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
+	col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation, gl_LightSource[3].specular.a);
+	col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation, gl_LightSource[4].specular.a);
+	col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].spotDirection.xyz, gl_LightSource[5].linearAttenuation, gl_LightSource[5].specular.a);
+	col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].spotDirection.xyz, gl_LightSource[6].linearAttenuation, gl_LightSource[6].specular.a);
+	col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].spotDirection.xyz, gl_LightSource[7].linearAttenuation, gl_LightSource[7].specular.a);
+	col.rgb += gl_LightSource[1].diffuse.rgb*calcDirectionalLight(norm, gl_LightSource[1].position.xyz);
+	col.rgb = scaleDownLight(col.rgb);
+	
+	// Add windlight lights
+	col.rgb += atmosAmbient(vec3(0.));
+	
+	vary_light = gl_LightSource[0].position.xyz;
+	
+	vary_ambient = col.rgb*gl_Color.rgb;
+	vary_directional.rgb = gl_Color.rgb*atmosAffectDirectionalLight(max(calcDirectionalLight(norm, gl_LightSource[0].position.xyz), (1.0-gl_Color.a)*(1.0-gl_Color.a)));
+	
+	col.rgb = min(col.rgb*gl_Color.rgb, 1.0);
+	
+	gl_FrontColor = col;
+
+	gl_FogFragCoord = pos.z;
+	
+	pos.xyz = (gl_ModelViewProjectionMatrix * gl_Vertex).xyz;
+	vary_fragcoord.xyz = pos.xyz + vec3(0,0,near_clip);
+	
+}
+
diff --git a/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightShinyWaterF.glsl b/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightShinyWaterF.glsl
new file mode 100644
index 0000000000..eca9a567f6
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightShinyWaterF.glsl
@@ -0,0 +1,29 @@
+/** 
+ * @file lightFullbrightShinyWaterF.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+uniform sampler2D diffuseMap;
+uniform samplerCube environmentMap;
+
+vec3 fullbrightShinyAtmosTransport(vec3 light);
+vec3 fullbrightScaleSoftClip(vec3 light);
+vec4 applyWaterFog(vec4 color);
+
+void fullbright_shiny_lighting_water()
+{
+	vec4 color = texture2D(diffuseMap, gl_TexCoord[0].xy);
+	color.rgb *= gl_Color.rgb;
+	
+	vec3 envColor = textureCube(environmentMap, gl_TexCoord[1].xyz).rgb;	
+	color.rgb = mix(color.rgb, envColor.rgb, gl_Color.a);
+
+	color.rgb = fullbrightShinyAtmosTransport(color.rgb);
+	color.rgb = fullbrightScaleSoftClip(color.rgb);
+	color.a = max(color.a, gl_Color.a);
+
+	gl_FragColor = applyWaterFog(color);
+}
+
diff --git a/indra/newview/llfloaterimportcollada.cpp b/indra/newview/llfloaterimportcollada.cpp
new file mode 100644
index 0000000000..476c02cd46
--- /dev/null
+++ b/indra/newview/llfloaterimportcollada.cpp
@@ -0,0 +1,1116 @@
+/** 
+ * @file llfloaterimportcollada.cpp
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ * 
+ * Copyright (c) 2001-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "llviewerprecompiledheaders.h"
+
+#include "llfloaterimportcollada.h"
+
+#include "dae.h"
+//#include "dom.h"
+#include "dom/domAsset.h"
+#include "dom/domBind_material.h"
+#include "dom/domConstants.h"
+#include "dom/domEffect.h"
+#include "dom/domGeometry.h"
+#include "dom/domInstance_geometry.h"
+#include "dom/domInstance_material.h"
+#include "dom/domInstance_node.h"
+#include "dom/domInstance_effect.h"
+#include "dom/domMaterial.h"
+#include "dom/domMatrix.h"
+#include "dom/domNode.h"
+#include "dom/domProfile_COMMON.h"
+#include "dom/domRotate.h"
+#include "dom/domScale.h"
+#include "dom/domTranslate.h"
+#include "dom/domVisual_scene.h"
+
+#include "llagent.h"
+#include "llassetuploadresponders.h"
+#include "lleconomy.h"
+#include "llfloaterperms.h"
+#include "llfloaterreg.h"
+#include "llsdutil.h"
+#include "llsdutil_math.h"
+#include "llselectmgr.h"
+#include "llvfile.h"
+#include "llvfs.h"
+#include "llviewermenufile.h"
+#include "llviewerregion.h"
+#include "llvolumemessage.h"
+#include "llmodel.h"
+#include "llmeshreduction.h"
+#include "material_codes.h"
+
+//
+// floater
+//
+
+#if LL_MESH_ENABLED
+
+LLFloaterImportCollada::LLFloaterImportCollada(const LLSD& key)
+	: LLFloater(key)
+{
+}
+
+
+BOOL LLFloaterImportCollada::postBuild()
+{
+	if (!LLFloater::postBuild())
+	{
+		return FALSE;
+	}
+
+	childSetCommitCallback("ok", LLImportCollada::onCommitOK, this);
+	childSetCommitCallback("cancel", LLImportCollada::onCommitCancel, this);
+	
+	setStatusIdle();
+	setAssetCount(0,0);
+	enableOK(TRUE);
+
+	return TRUE;
+}
+
+
+void LLFloaterImportCollada::setAssetCount(S32 mesh_count, S32 texture_count)
+{
+	childSetTextArg("mesh count", "[COUNT]", llformat("%d", mesh_count));
+	childSetTextArg("texture count", "[COUNT]", llformat("%d", texture_count));
+}
+
+void LLFloaterImportCollada::setStatusAssetUploading(std::string asset_name)
+{
+	LLUIString uploading = getString("status_uploading");
+	uploading.setArg("[NAME]", asset_name);
+	childSetTextArg("status", "[STATUS]", uploading.getString());
+}
+
+void LLFloaterImportCollada::setStatusCreatingPrim(std::string prim_name)
+{
+	LLUIString creating = getString("status_creating");
+	creating.setArg("[NAME]", prim_name);
+	childSetTextArg("status", "[STATUS]", creating.getString());
+}
+
+void LLFloaterImportCollada::setStatusIdle()
+{
+	childSetTextArg("status", "[STATUS]", getString("status_idle"));
+}
+
+void LLFloaterImportCollada::enableOK(BOOL enable)
+{
+	childSetEnabled("ok", enable);
+}
+
+
+//
+// misc helpers
+//
+
+
+// why oh why do forbid matrix multiplication in our llmath library?
+LLMatrix4 matrix_multiply(LLMatrix4 a, LLMatrix4 b)
+{
+	a *= b;
+
+	return a;
+}
+
+// why oh why does colladadom not provide such things?
+daeElement* getFirstChild(daeElement* parent)
+{
+	daeTArray< daeSmartRef<daeElement> > children = parent->getChildren();
+
+	if (children.getCount() > 0)
+	{
+		return children[0];
+	}
+	else
+	{
+		return NULL;
+	}
+}
+
+// why oh why does colladadom not provide such things?
+daeElement* getNextSibling(daeElement* child)
+{
+	daeElement* parent = child->getParent();
+
+	if (parent == NULL)
+	{
+		// must be root, root has no siblings
+		return NULL;
+	}
+
+	daeElement* sibling = NULL;
+
+	daeTArray< daeSmartRef<daeElement> > children = parent->getChildren();
+	for (S32 i = 0; i < children.getCount(); i++)
+	{
+		if (child == children[i])
+		{
+			if ((i+1) < children.getCount())
+			{
+				sibling = children[i+1];
+			}
+		}
+	}
+
+	return sibling;
+}
+
+// try to get a decent label for this element
+std::string getElementLabel(daeElement *element)
+{
+	// if we have a name attribute, use it
+	std::string name = element->getAttribute("name");
+	if (name.length())
+	{
+		return name;
+	}
+
+	// if we have an ID attribute, use it
+	if (element->getID())
+	{
+		return std::string(element->getID());
+	}
+
+	// if we have a parent, use it
+	daeElement* parent = element->getParent();
+	if (parent)
+	{
+		// if parent has a name, use it
+		std::string name = parent->getAttribute("name");
+		if (name.length())
+		{
+			return name;
+		}
+
+		// if parent has an ID, use it
+		if (parent->getID())
+		{
+			return std::string(parent->getID());
+		}
+	}
+
+	// try to use our type
+	daeString element_name = element->getElementName();
+	if (element_name)
+	{
+		return std::string(element_name);
+	}
+
+	// if all else fails, use "object"
+	return std::string("object");
+}
+
+LLColor4 getDaeColor(daeElement* element)
+{
+	LLColor4 value;
+	domCommon_color_or_texture_type_complexType::domColor* color =
+		daeSafeCast<domCommon_color_or_texture_type_complexType::domColor>(element->getDescendant("color"));
+	if (color)
+	{
+		domFx_color_common domfx_color = color->getValue();
+		value = LLColor4(domfx_color[0], domfx_color[1], domfx_color[2], domfx_color[3]);
+	}
+
+	return value;
+}
+
+LLTextureEntry profileToTextureEntry(domProfile_COMMON* material)
+{
+	LLTextureEntry te;
+
+	te.setID(LLUUID("5748decc-f629-461c-9a36-a35a221fe21f")); // blank texture
+	daeElement* diffuse = material->getDescendant("diffuse");
+	if (diffuse)
+	{
+		te.setColor(LLColor3(0.1f, 0.9f, 1.0f));
+					
+		domCommon_color_or_texture_type_complexType::domTexture* texture =
+			daeSafeCast<domCommon_color_or_texture_type_complexType::domTexture>(diffuse->getDescendant("texture"));
+		if (texture)
+		{
+			domCommon_newparam_type_Array newparams = material->getNewparam_array();
+			for (S32 i = 0; i < newparams.getCount(); i++)
+			{
+				domFx_surface_common* surface = newparams[i]->getSurface();
+				if (surface)
+				{
+					domFx_surface_init_common* init = surface->getFx_surface_init_common();
+					if (init)
+					{
+						domFx_surface_init_from_common_Array init_from = init->getInit_from_array();
+
+						if (init_from.getCount() > 0)
+						{
+							daeElement* image = init_from[0]->getValue().getElement();
+							if (image)
+							{
+								LLUUID texture_asset = LLImportColladaAssetCache::getInstance()->getAssetForDaeElement(image);
+
+								if (texture_asset.notNull())
+								{
+									te.setID(texture_asset);
+									te.setColor(LLColor3(1,1,1));
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+		
+		domCommon_color_or_texture_type_complexType::domColor* color =
+			daeSafeCast<domCommon_color_or_texture_type_complexType::domColor>(diffuse->getDescendant("color"));
+		if (color)
+		{
+			domFx_color_common domfx_color = color->getValue();
+			LLColor4 value = LLColor4(domfx_color[0], domfx_color[1], domfx_color[2], domfx_color[3]);
+			te.setColor(value);
+		}
+	}
+
+	daeElement* emission = material->getDescendant("emission");
+	if (emission)
+	{
+		LLColor4 emission_color = getDaeColor(emission);
+		if (((emission_color[0] + emission_color[1] + emission_color[2]) / 3.0) > 0.25)
+		{
+			te.setFullbright(TRUE);
+		}
+	}
+
+	return te;
+}
+
+std::vector<LLTextureEntry> getMaterials(LLModel* model, domInstance_geometry* instance_geo)
+{
+	std::vector<LLTextureEntry> texture_entries;
+	for (int i = 0; i < model->mMaterialList.size(); i++)
+	{
+		LLTextureEntry texture_entry;
+
+		domInstance_material* instance_mat = NULL;
+
+		domBind_material::domTechnique_common* technique =
+			daeSafeCast<domBind_material::domTechnique_common>(instance_geo->getDescendant(daeElement::matchType(domBind_material::domTechnique_common::ID())));
+
+		if (technique)
+		{
+			daeTArray< daeSmartRef<domInstance_material> > inst_materials = technique->getChildrenByType<domInstance_material>();
+			for (int j = 0; j < inst_materials.getCount(); j++)
+			{
+				std::string symbol(inst_materials[j]->getSymbol());
+
+				if (symbol == model->mMaterialList[i]) // found the binding
+				{
+					instance_mat = inst_materials[j];
+				}
+			}
+		}
+
+		if (instance_mat)
+		{
+			domMaterial* material = daeSafeCast<domMaterial>(instance_mat->getTarget().getElement());
+			if (material)
+			{
+				domInstance_effect* instance_effect =
+					daeSafeCast<domInstance_effect>(material->getDescendant(daeElement::matchType(domInstance_effect::ID())));
+				if (instance_effect)
+				{
+					domEffect* effect = daeSafeCast<domEffect>(instance_effect->getUrl().getElement());
+					if (effect)
+					{
+						domProfile_COMMON* profile =
+							daeSafeCast<domProfile_COMMON>(effect->getDescendant(daeElement::matchType(domProfile_COMMON::ID())));
+						if (profile)
+						{
+							texture_entry = profileToTextureEntry(profile);
+						}
+					}
+				}
+			}
+		}
+		
+		texture_entries.push_back(texture_entry);
+	}
+
+	return texture_entries;
+}
+
+LLTextureEntry instanceGeoToTextureEntry(domInstance_geometry* instance_geo)
+{
+	LLTextureEntry te;
+	domInstance_material* instance_mat = 
+		daeSafeCast<domInstance_material>(instance_geo->getDescendant(daeElement::matchType(domInstance_material::ID())));
+	if (instance_mat)
+	{
+	}
+
+	return te;
+}
+
+
+
+// responder for asset uploads
+// does all the normal stuff followed by a notification to continue importing
+// WARNING - currently unused - TODO
+class LLColladaNewAgentInventoryResponder : public LLNewAgentInventoryResponder
+{
+	LLColladaNewAgentInventoryResponder(const LLSD& post_data,
+										const LLUUID& vfile_id,
+										LLAssetType::EType asset_type)
+	    : LLNewAgentInventoryResponder(post_data, vfile_id, asset_type)
+	{
+	}
+	LLColladaNewAgentInventoryResponder(const LLSD& post_data,
+										const std::string& file_name,
+										LLAssetType::EType asset_type)
+	    : LLNewAgentInventoryResponder(post_data, file_name, asset_type)
+	{
+	}
+
+	virtual void uploadComplete(const LLSD& content)
+	{
+		LLNewAgentInventoryResponder::uploadComplete(content);
+	}
+	
+};
+
+BOOL LLImportColladaAssetCache::uploadImageAsset(domImage* image)
+{
+	// we only support init_from now - embedded data will come later
+	domImage::domInit_from* init = image->getInit_from();
+	if (!init)
+	{
+		return FALSE;
+	}
+
+	std::string filename = cdom::uriToNativePath(init->getValue().str());
+
+	std::string name = getElementLabel(image);
+	
+	LLUUID transaction_id = upload_new_resource(filename, name, std::string(),
+												0, LLFolderType::FT_TEXTURE, LLInventoryType::IT_TEXTURE,
+												LLFloaterPerms::getNextOwnerPerms(), LLFloaterPerms::getGroupPerms(),
+												LLFloaterPerms::getEveryonePerms(),
+												name, NULL,
+												LLGlobalEconomy::Singleton::getInstance()->getPriceUpload(), NULL);
+
+	if (transaction_id.isNull())
+	{
+		llwarns << "cannot upload " << filename << llendl;
+		
+		return FALSE;
+	}
+
+	mTransactionMap[transaction_id] = image;
+
+	LLFloaterReg::findTypedInstance<LLFloaterImportCollada>("import_collada")->setStatusAssetUploading(name);
+	
+	return TRUE;
+}
+
+
+
+//
+// asset cache -
+// uploads assets and provides a map from collada element to asset
+//
+
+
+
+BOOL LLImportColladaAssetCache::uploadMeshAsset(domMesh* mesh)
+{
+	LLPointer<LLModel> model = LLModel::loadModelFromDomMesh(mesh);
+
+	if (model->getNumVolumeFaces() == 0)
+	{
+		return FALSE;
+	}
+
+	// generate LODs
+	
+	
+	std::vector<LLPointer<LLModel> > lods;
+	lods.push_back(model);
+	S32 triangle_count = model->getNumTriangles();
+
+	for (S32 i = 0; i < 4; i++)
+	{
+		LLPointer<LLModel> last_model = lods.back();
+
+		S32 triangle_target = (S32)(triangle_count / pow(3.f, i + 1));
+		if (triangle_target > 16)
+		{
+			LLMeshReduction reduction;
+			LLPointer<LLModel> new_model = reduction.reduce(model, triangle_target, LLMeshReduction::TRIANGLE_BUDGET);
+			lods.push_back(new_model);
+		}
+		else
+		{
+			lods.push_back(last_model);
+		}
+	}
+	
+    // write model to temp file
+
+	std::string filename = gDirUtilp->getTempFilename();
+	LLModel::writeModel(filename,
+						lods[4],
+						lods[0],
+						lods[1],
+						lods[2],
+		                lods[3],
+						lods[4]->mPhysicsShape);
+
+
+	// copy file to VFS
+
+	LLTransactionID tid;
+	tid.generate();
+	LLAssetID uuid = tid.makeAssetID(gAgent.getSecureSessionID());  // create asset uuid
+
+	S32 file_size;
+	LLAPRFile infile ;
+	infile.open(filename, LL_APR_RB, NULL, &file_size);
+
+	if (infile.getFileHandle())
+	{
+		LLVFile file(gVFS, uuid, LLAssetType::AT_MESH, LLVFile::WRITE);
+
+		file.setMaxSize(file_size);
+
+		const S32 buf_size = 65536;
+		U8 copy_buf[buf_size];
+		while ((file_size = infile.read(copy_buf, buf_size)))
+		{
+			file.write(copy_buf, file_size);
+		}
+	}
+
+	
+	std::string name = getElementLabel(mesh);
+	
+	upload_new_resource(tid, LLAssetType::AT_MESH, name, std::string(), 0,LLFolderType::FT_MESH, LLInventoryType::IT_MESH,
+						LLFloaterPerms::getNextOwnerPerms(), LLFloaterPerms::getGroupPerms(), LLFloaterPerms::getEveryonePerms(),
+						name, NULL,
+						LLGlobalEconomy::Singleton::getInstance()->getPriceUpload(), NULL);
+
+	LLFile::remove(filename);
+
+	mTransactionMap[uuid] = mesh;
+
+	LLFloaterReg::findTypedInstance<LLFloaterImportCollada>("import_collada")->setStatusAssetUploading(name);
+
+	return TRUE;
+}
+
+
+// called by the mesh asset upload responder to indicate the mesh asset has been uploaded
+void LLImportColladaAssetCache::assetUploaded(LLUUID transaction_uuid, LLUUID asset_uuid, BOOL success)
+{
+	std::map<LLUUID, daeElement*>::iterator i = mTransactionMap.find(transaction_uuid);
+
+	if (i != mTransactionMap.end())
+	{
+		daeElement* element = i->second;
+			
+
+		if (success)
+		{
+			mAssetMap[element] = asset_uuid;
+		}
+		else // failure
+		{
+			// if failed, put back on end of queue
+			mUploadsPending.push_back(element);
+		}
+		
+		mUploads--;
+		uploadNextAsset();
+	}
+}
+
+const S32 MAX_CONCURRENT_UPLOADS = 5;
+
+void LLImportColladaAssetCache::uploadNextAsset()
+{
+	while ((mUploadsPending.size() > 0) && (mUploads < MAX_CONCURRENT_UPLOADS))
+	{
+		BOOL upload_started = FALSE;
+
+		daeElement* element = mUploadsPending.back();
+		mUploadsPending.pop_back();
+
+		domImage* image = daeSafeCast<domImage>(element);
+		if (image)
+		{
+			upload_started = uploadImageAsset(image);
+		}
+		
+		domMesh* mesh = daeSafeCast<domMesh>(element);
+		if (mesh)
+		{
+			upload_started = uploadMeshAsset(mesh);
+		}
+
+		if (upload_started)
+		{
+			mUploads++;
+		}
+
+	}
+
+	if ((mUploadsPending.size() == 0) && (mUploads == 0))
+	{
+		// we're done! notify the importer
+		LLImportCollada::getInstance()->assetsUploaded();
+	}
+
+	updateCount();
+}
+
+
+void LLImportColladaAssetCache::clear()
+{
+	mDAE = NULL;
+	mTransactionMap.clear();
+	mAssetMap.clear();
+	mUploadsPending.clear();
+	mUploads = 0;
+}
+
+void LLImportColladaAssetCache::endImport()
+{
+	clear();
+}
+
+void LLImportColladaAssetCache::updateCount()
+{
+	S32 mesh_count = 0;
+	S32 image_count = 0;
+
+	for (S32 i = 0; i < mUploadsPending.size(); i++)
+	{
+		daeElement* element = mUploadsPending[i];
+
+		if (daeSafeCast<domMesh>(element))
+		{
+			mesh_count++;
+		}
+
+		if (daeSafeCast<domImage>(element))
+		{
+			image_count++;
+		}
+	}
+	
+	LLFloaterReg::findTypedInstance<LLFloaterImportCollada>("import_collada")->setAssetCount(mesh_count, image_count);
+}
+
+void LLImportColladaAssetCache::prepareForUpload(DAE* dae)
+{
+	clear();
+	mDAE = dae;
+
+	daeDatabase* db = mDAE->getDatabase();
+
+	S32 mesh_count = db->getElementCount(NULL, COLLADA_TYPE_MESH);
+	for (S32 i = 0; i < mesh_count; i++)
+	{
+		domMesh* mesh = NULL;
+
+		db->getElement((daeElement**) &mesh, i, NULL, COLLADA_TYPE_MESH);
+
+		mUploadsPending.push_back(mesh);
+	}
+
+	
+	S32 image_count = db->getElementCount(NULL, COLLADA_TYPE_IMAGE);
+	for (S32 i = 0; i < image_count; i++)
+	{
+		domImage* image = NULL;
+		db->getElement((daeElement**) &image, i, NULL, COLLADA_TYPE_IMAGE);
+		
+		mUploadsPending.push_back(image);
+	}
+
+	updateCount();
+}
+
+
+void LLImportColladaAssetCache::uploadAssets()
+{
+	uploadNextAsset();
+}
+
+
+LLUUID LLImportColladaAssetCache::getAssetForDaeElement(daeElement* element)
+{
+	LLUUID id;
+	
+	std::map<daeElement*, LLUUID>::iterator i = mAssetMap.find(element);
+	if (i != mAssetMap.end())
+	{
+		id = i->second;
+	}
+
+	return id;
+}
+
+
+//
+// importer
+//
+
+
+
+LLImportCollada::LLImportCollada()
+{
+	mIsImporting = FALSE;
+}
+
+
+
+
+void LLImportCollada::appendObjectAsset(domInstance_geometry* instance_geo)
+{
+	domGeometry* geo = daeSafeCast<domGeometry>(instance_geo->getUrl().getElement());
+	if (!geo)
+	{
+		llwarns << "cannot find geometry" << llendl;
+		return;
+	}
+	
+	domMesh* mesh = daeSafeCast<domMesh>(geo->getDescendant(daeElement::matchType(domMesh::ID())));
+	if (!mesh)
+	{
+		llwarns << "could not find mesh" << llendl;
+		return;
+	}
+	
+	LLUUID mesh_asset = LLImportColladaAssetCache::getInstance()->getAssetForDaeElement(mesh);
+	if (mesh_asset.isNull())
+	{
+		llwarns << "no mesh asset, skipping" << llendl;
+		return;
+	}
+
+	// load the model
+	LLModel* model = LLModel::loadModelFromDomMesh(mesh);
+
+
+
+	
+	// get our local transformation
+	LLMatrix4 transformation = mStack.front().transformation;
+
+	// adjust the transformation to compensate for mesh normalization
+	LLVector3 mesh_scale_vector;
+	LLVector3 mesh_translation_vector;
+	model->getNormalizedScaleTranslation(mesh_scale_vector, mesh_translation_vector);
+	LLMatrix4 mesh_translation;
+	mesh_translation.setTranslation(mesh_translation_vector);
+	transformation = matrix_multiply(mesh_translation, transformation);
+	LLMatrix4 mesh_scale;
+	mesh_scale.initScale(mesh_scale_vector);
+	transformation = matrix_multiply(mesh_scale, transformation);
+
+	// check for reflection
+	BOOL reflected = (transformation.determinant() < 0);
+	
+	// compute position
+	LLVector3 position = LLVector3(0, 0, 0) * transformation;
+
+	// compute scale
+	LLVector3 x_transformed = LLVector3(1, 0, 0) * transformation - position;
+	LLVector3 y_transformed = LLVector3(0, 1, 0) * transformation - position;
+	LLVector3 z_transformed = LLVector3(0, 0, 1) * transformation - position;
+	F32 x_length = x_transformed.normalize();
+	F32 y_length = y_transformed.normalize();
+	F32 z_length = z_transformed.normalize();
+	LLVector3 scale = LLVector3(x_length, y_length, z_length);
+
+	// adjust for "reflected" geometry
+	LLVector3 x_transformed_reflected = x_transformed;
+	if (reflected)
+	{
+		x_transformed_reflected *= -1.0;
+	}
+	
+	// compute rotation
+	LLMatrix3 rotation_matrix;
+	rotation_matrix.setRows(x_transformed_reflected, y_transformed, z_transformed);
+	LLQuaternion quat_rotation = rotation_matrix.quaternion();
+	quat_rotation.normalize(); // the rotation_matrix might not have been orthoginal.  make it so here.
+	LLVector3 euler_rotation;
+	quat_rotation.getEulerAngles(&euler_rotation.mV[VX], &euler_rotation.mV[VY], &euler_rotation.mV[VZ]);
+
+	
+	//
+	// build parameter block to construct this prim
+	//
+	
+	LLSD object_params;
+
+    // create prim
+
+	// set volume params
+	LLVolumeParams  volume_params;
+	volume_params.setType( LL_PCODE_PROFILE_SQUARE, LL_PCODE_PATH_LINE );
+	volume_params.setBeginAndEndS( 0.f, 1.f );
+	volume_params.setBeginAndEndT( 0.f, 1.f );
+	volume_params.setRatio  ( 1, 1 );
+	volume_params.setShear  ( 0, 0 );
+	U8 sculpt_type = LL_SCULPT_TYPE_MESH;
+	if (reflected)
+	{
+		sculpt_type |= LL_SCULPT_FLAG_MIRROR;
+	}
+	volume_params.setSculptID(mesh_asset, sculpt_type);
+	object_params["shape"] = volume_params.asLLSD();
+
+	object_params["material"] = LL_MCODE_WOOD;
+
+	object_params["group-id"] = gAgent.getGroupID();
+	object_params["pos"] = ll_sd_from_vector3(position);
+	object_params["rotation"] = ll_sd_from_quaternion(quat_rotation);
+	object_params["scale"] = ll_sd_from_vector3(scale);
+	object_params["name"] = mStack.front().name;
+
+	// load material from dae file
+	std::vector<LLTextureEntry> texture_entries = getMaterials(model, instance_geo);
+	object_params["facelist"] = LLSD::emptyArray();
+	for (int i = 0; i < texture_entries.size(); i++)
+	{
+		object_params["facelist"][i] = texture_entries[i].asLLSD();
+	}
+
+	// set extra parameters
+	LLSculptParams sculpt_params;
+	sculpt_params.setSculptTexture(mesh_asset);
+	sculpt_params.setSculptType(sculpt_type);
+	U8 buffer[MAX_OBJECT_PARAMS_SIZE+1];
+	LLDataPackerBinaryBuffer dp(buffer, MAX_OBJECT_PARAMS_SIZE);
+	sculpt_params.pack(dp);
+	std::vector<U8> v(dp.getCurrentSize());
+	memcpy(&v[0], buffer, dp.getCurrentSize());
+	LLSD extra_parameter;
+	extra_parameter["extra_parameter"] = sculpt_params.mType;
+	extra_parameter["param_data"] = v;
+	object_params["extra_parameters"].append(extra_parameter);
+
+	mObjectList.append(object_params);
+	
+	delete model;
+
+	LLFloaterReg::findTypedInstance<LLFloaterImportCollada>("import_collada")->setStatusCreatingPrim(mStack.front().name);
+	
+	return;
+}
+
+void LLImportCollada::uploadObjectAsset()
+{
+	LLSD request;
+	request["objects"] = mObjectList;
+	
+	std::string url = gAgent.getRegion()->getCapability("UploadObjectAsset");
+	LLHTTPClient::post(url, request, new LLHTTPClient::Responder());
+}
+
+
+
+void LLImportCollada::importFile(std::string filename)
+{
+	if (mIsImporting)
+	{
+		llwarns << "Importer already running, import command for " << filename << " ignored" << llendl;
+		return;
+	}
+
+	LLFloaterReg::showInstance("import_collada");
+	LLFloaterReg::findTypedInstance<LLFloaterImportCollada>("import_collada")->enableOK(TRUE);
+
+	
+	mIsImporting = TRUE;
+	mDAE = new DAE;
+	mImportOrigin = gAgent.getPositionAgent() + LLVector3(0, 0, 2);
+	mSceneTransformation = LLMatrix4();  // identity
+	mFilename = filename;
+	mCreates = 0;
+	mObjectList = LLSD::emptyArray();
+	
+	if (mDAE->open(mFilename) == NULL)
+	{
+		llwarns << "cannot open file " << mFilename << llendl;
+		endImport();
+		return;
+	}
+
+	LLImportColladaAssetCache::getInstance()->prepareForUpload(mDAE);
+
+	return;
+}
+
+
+void LLImportCollada::assetsUploaded()
+{
+	if (!mIsImporting)
+	{
+		// weird, we got a callback while not importing.
+		return;
+	}
+	
+	daeDocument* doc = mDAE->getDoc(mFilename);
+	if (!doc)
+	{
+		llwarns << "can't find internal doc" << llendl;
+		endImport();
+	}
+	
+	daeElement* root = doc->getDomRoot();
+	if (!root)
+	{
+		llwarns << "document has no root" << llendl;
+		endImport();
+	}
+
+	domAsset::domUnit* unit = daeSafeCast<domAsset::domUnit>(root->getDescendant(daeElement::matchType(domAsset::domUnit::ID())));
+	if (unit)
+	{
+		mSceneTransformation *= unit->getMeter();
+	}
+
+	domUpAxisType up = UPAXISTYPE_Y_UP;  // default is Y_UP
+	domAsset::domUp_axis* up_axis =
+		daeSafeCast<domAsset::domUp_axis>(root->getDescendant(daeElement::matchType(domAsset::domUp_axis::ID())));
+	if (up_axis)
+	{
+		up = up_axis->getValue();
+	}
+	
+	if (up == UPAXISTYPE_X_UP)
+	{
+		LLMatrix4 rotation;
+		rotation.initRotation(0.0f, 90.0f * DEG_TO_RAD, 0.0f);
+
+		mSceneTransformation = matrix_multiply(rotation, mSceneTransformation);
+	}
+	else if (up == UPAXISTYPE_Y_UP)
+	{
+		LLMatrix4 rotation;
+		rotation.initRotation(90.0f * DEG_TO_RAD, 0.0f, 0.0f);
+
+		mSceneTransformation = matrix_multiply(rotation, mSceneTransformation);
+	}
+    // else Z_UP, which is our behavior
+
+	
+
+	daeElement* scene = root->getDescendant("visual_scene");
+	if (!scene)
+	{
+		llwarns << "document has no visual_scene" << llendl;
+		endImport();
+	}
+
+	processElement(scene);
+	processNextElement();
+}
+
+void LLImportCollada::pushStack(daeElement* next_element, std::string name, LLMatrix4 transformation)
+{
+	struct StackState new_state;
+
+	new_state.next_element = next_element;
+	new_state.name = name;
+	new_state.transformation = transformation;
+
+	mStack.push_front(new_state);
+}
+
+
+
+void LLImportCollada::popStack()
+{
+	mStack.pop_front();
+}
+
+
+
+BOOL LLImportCollada::processElement(daeElement* element)
+{
+	if (mStack.size() > 0)
+	{
+		mStack.front().next_element = getNextSibling(element);
+	}
+	
+	domTranslate* translate = daeSafeCast<domTranslate>(element);
+	if (translate)
+	{
+		domFloat3 dom_value = translate->getValue();
+
+		LLMatrix4 translation;
+		translation.setTranslation(LLVector3(dom_value[0], dom_value[1], dom_value[2]));
+
+		mStack.front().transformation = matrix_multiply(translation, mStack.front().transformation);
+	}
+
+	domRotate* rotate = daeSafeCast<domRotate>(element);
+	if (rotate)
+	{
+		domFloat4 dom_value = rotate->getValue();
+
+		LLMatrix4 rotation;
+		rotation.initRotTrans(dom_value[3] * DEG_TO_RAD, LLVector3(dom_value[0], dom_value[1], dom_value[2]), LLVector3(0, 0, 0));
+
+		mStack.front().transformation = matrix_multiply(rotation, mStack.front().transformation);
+	}
+
+	domScale* scale = daeSafeCast<domScale>(element);
+	if (scale)
+	{
+		domFloat3 dom_value = scale->getValue();
+
+		LLMatrix4 scaling;
+		scaling.initScale(LLVector3(dom_value[0], dom_value[1], dom_value[2]));
+
+		mStack.front().transformation = matrix_multiply(scaling, mStack.front().transformation);
+	}
+
+	domMatrix* matrix = daeSafeCast<domMatrix>(element);
+	if (matrix)
+	{
+		domFloat4x4 dom_value = matrix->getValue();
+
+		LLMatrix4 matrix_transform;
+
+		for (int i = 0; i < 4; i++)
+			for(int j = 0; j < 4; j++)
+			{
+				matrix_transform.mMatrix[i][j] = dom_value[i + j*4];
+			}
+		
+		mStack.front().transformation = matrix_multiply(matrix_transform, mStack.front().transformation);
+	}
+
+	domInstance_geometry* instance_geo = daeSafeCast<domInstance_geometry>(element);
+	if (instance_geo)
+	{
+		appendObjectAsset(instance_geo);
+	}
+
+	domNode* node = daeSafeCast<domNode>(element);
+	if (node)
+	{
+		pushStack(getFirstChild(element), getElementLabel(element), mStack.front().transformation);
+	}
+
+	domInstance_node* instance_node = daeSafeCast<domInstance_node>(element);
+	if (instance_node)
+	{
+		daeElement* instance = instance_node->getUrl().getElement();
+		if (instance)
+		{
+			pushStack(getFirstChild(instance), getElementLabel(instance), mStack.front().transformation);
+		}
+	}
+
+	domVisual_scene* scene = daeSafeCast<domVisual_scene>(element);
+	if (scene)
+	{
+		pushStack(getFirstChild(element), std::string("scene"), mSceneTransformation);
+	}
+
+	return FALSE;
+}
+
+
+void LLImportCollada::processNextElement()
+{
+	while(1)
+	{
+		if (mStack.size() == 0)
+		{
+			uploadObjectAsset();
+			endImport();
+			return;
+		}
+
+		daeElement *element = mStack.front().next_element;
+
+		if (element == NULL)
+		{
+			popStack();
+		}
+		else
+		{
+			processElement(element);
+		}
+	}
+}
+
+
+void LLImportCollada::endImport()
+{
+	LLFloaterReg::hideInstance("import_collada");
+
+	LLImportColladaAssetCache::getInstance()->endImport();
+	
+	if (mDAE)
+	{
+		delete mDAE;
+		mDAE = NULL;
+	}
+	
+	mIsImporting = FALSE;
+}
+
+
+/* static */
+void LLImportCollada::onCommitOK(LLUICtrl*, void*)
+{
+	LLFloaterReg::findTypedInstance<LLFloaterImportCollada>("import_collada")->enableOK(FALSE);
+
+	LLImportColladaAssetCache::getInstance()->uploadAssets();
+}
+
+
+/* static */
+void LLImportCollada::onCommitCancel(LLUICtrl*, void*)
+{
+	getInstance()->endImport();
+}
+
+#endif
diff --git a/indra/newview/llfloaterimportcollada.h b/indra/newview/llfloaterimportcollada.h
new file mode 100644
index 0000000000..818b19e403
--- /dev/null
+++ b/indra/newview/llfloaterimportcollada.h
@@ -0,0 +1,143 @@
+/** 
+ * @file llfloaterimportcollada.h
+ * @brief The about box from Help -> About
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ * 
+ * Copyright (c) 2001-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLFLOATERIMPORTCOLLADA_H
+#define LL_LLFLOATERIMPORTCOLLADA_H
+
+#include "llfloater.h"
+#include "llvolume.h" //for LL_MESH_ENABLED
+
+#if LL_MESH_ENABLED
+
+class LLFloaterImportCollada : public LLFloater
+{
+public:
+	LLFloaterImportCollada(const LLSD& key);
+	/* virtual */ BOOL postBuild();
+
+	void setAssetCount(S32 mesh_count, S32 texture_count);
+	void setStatusAssetUploading(std::string asset_name);
+	void setStatusCreatingPrim(std::string prim_name);
+	void setStatusIdle();
+	void enableOK(BOOL enable);
+};
+
+class LLViewerObject;
+class DAE;
+class daeElement;
+class domMesh;
+class domImage;
+class domInstance_geometry;
+class LLModel;
+class LLImportCollada;
+
+class LLImportColladaAssetCache : public LLSingleton<LLImportColladaAssetCache>
+{
+public:
+	// called first to initialize 
+	void prepareForUpload(DAE* dae);
+
+	// upload the assets in this collada file
+	void uploadAssets();
+
+	// get the uploaded assets which corresponds to this element
+	LLUUID getAssetForDaeElement(daeElement* element);
+
+	// stop the upload
+	void endImport();
+	
+	// reset
+	void clear();
+
+	// callback for notification when an asset has been uploaded
+	void assetUploaded(LLUUID transaction_uuid, LLUUID asset_uuid, BOOL success);
+
+private:
+	void uploadNextAsset();
+	BOOL uploadMeshAsset(domMesh* mesh);
+	BOOL uploadImageAsset(domImage* image);
+	void updateCount();
+	
+	std::vector<daeElement*> mUploadsPending;
+	std::map<LLUUID, daeElement*> mTransactionMap;
+	std::map<daeElement*, LLUUID> mAssetMap;
+	
+	DAE* mDAE;
+	S32 mUploads;
+};
+
+
+class LLImportCollada 
+: public LLSingleton<LLImportCollada>
+{
+public:
+	LLImportCollada();
+	void importFile(std::string filename);
+
+	// callback when all assets have been uploaded
+	void assetsUploaded();
+
+	// callback when buttons pressed
+	static void onCommitOK(LLUICtrl*, void*);
+	static void onCommitCancel(LLUICtrl*, void*);
+	
+	
+private:
+	void endImport();
+	void processNextElement();
+	BOOL processElement(daeElement* element);
+	void pushStack(daeElement* next_element, std::string name, LLMatrix4 transformation);
+	void popStack();
+	void appendObjectAsset(domInstance_geometry* instance_geo);
+	void uploadObjectAsset();
+	
+	struct StackState
+	{
+		daeElement* next_element;
+		std::string name;
+		LLMatrix4 transformation;
+	};
+
+	std::list<struct StackState> mStack;
+	S32 mCreates;
+	LLVector3 mImportOrigin;
+	std::string mFilename;
+	BOOL mIsImporting;
+	DAE  *mDAE;
+	LLSD mObjectList;
+	
+	LLMatrix4   mSceneTransformation;
+};
+
+#endif
+
+#endif // LL_LLFLOATERIMPORTCOLLADA_H
diff --git a/indra/newview/llfloatermodelpreview.cpp b/indra/newview/llfloatermodelpreview.cpp
new file mode 100644
index 0000000000..5dd983d818
--- /dev/null
+++ b/indra/newview/llfloatermodelpreview.cpp
@@ -0,0 +1,3382 @@
+/** 
+ * @file llfloatermodelpreview.cpp
+ * @brief LLFloaterModelPreview class implementation
+ *
+ * $LicenseInfo:firstyear=2004&license=viewergpl$
+ * 
+ * Copyright (c) 2004-2007, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "llviewerprecompiledheaders.h"
+
+#include "dae.h"
+//#include "dom.h"
+#include "dom/domAsset.h"
+#include "dom/domBind_material.h"
+#include "dom/domCOLLADA.h"
+#include "dom/domConstants.h"
+#include "dom/domController.h"
+#include "dom/domEffect.h"
+#include "dom/domGeometry.h"
+#include "dom/domInstance_geometry.h"
+#include "dom/domInstance_material.h"
+#include "dom/domInstance_node.h"
+#include "dom/domInstance_effect.h"
+#include "dom/domMaterial.h"
+#include "dom/domMatrix.h"
+#include "dom/domNode.h"
+#include "dom/domProfile_COMMON.h"
+#include "dom/domRotate.h"
+#include "dom/domScale.h"
+#include "dom/domTranslate.h"
+#include "dom/domVisual_scene.h"
+
+#include "llfloatermodelpreview.h"
+
+#include "llfilepicker.h"
+#include "llimagebmp.h"
+#include "llimagetga.h"
+#include "llimagejpeg.h"
+#include "llimagepng.h"
+
+#include "llagent.h"
+#include "llbutton.h"
+#include "llcombobox.h"
+#include "lldatapacker.h"
+#include "lldrawable.h"
+#include "lldrawpoolavatar.h"
+#include "llrender.h"
+#include "llface.h"
+#include "lleconomy.h"
+#include "llfocusmgr.h"
+#include "llfloaterperms.h"
+#include "llmatrix4a.h"
+#include "llmeshrepository.h"
+#include "llsdutil_math.h"
+#include "lltextbox.h"
+#include "lltoolmgr.h"
+#include "llui.h"
+#include "llvector4a.h"
+#include "llviewercamera.h"
+#include "llviewerwindow.h"
+#include "llvoavatar.h"
+#include "llvoavatarself.h"
+#include "pipeline.h"
+#include "lluictrlfactory.h"
+#include "llviewermenufile.h"
+#include "llviewerregion.h"
+#include "llstring.h"
+#include "llbutton.h"
+#include "llcheckboxctrl.h"
+#include "llsliderctrl.h"
+#include "llspinctrl.h"
+#include "llvfile.h"
+#include "llvfs.h"
+
+
+#include "glod/glod.h"
+
+
+#if LL_MESH_ENABLED
+
+//static
+S32 LLFloaterModelPreview::sUploadAmount = 10;
+LLFloaterModelPreview* LLFloaterModelPreview::sInstance = NULL;
+
+const S32 PREVIEW_BORDER_WIDTH = 2;
+const S32 PREVIEW_RESIZE_HANDLE_SIZE = S32(RESIZE_HANDLE_WIDTH * OO_SQRT2) + PREVIEW_BORDER_WIDTH;
+const S32 PREVIEW_HPAD = PREVIEW_RESIZE_HANDLE_SIZE;
+const S32 PREF_BUTTON_HEIGHT = 16 + 7 + 16;
+const S32 PREVIEW_TEXTURE_HEIGHT = 300;
+
+void drawBoxOutline(const LLVector3& pos, const LLVector3& size);
+
+std::string limit_name[] =
+{
+	"lowest limit",
+	"low limit",
+	"medium limit",
+	"high limit",
+	"physics limit",
+
+	"I went off the end of the limit_name array.  Me so smart."
+};
+
+std::string info_name[] =
+{
+	"lowest info",
+	"low info",
+	"medium info",
+	"high info",
+	"physics info",
+
+	"I went off the end of the info_name array.  Me so smart."
+};
+
+bool validate_face(const LLVolumeFace& face)
+{
+	for (U32 i = 0; i < face.mNumIndices; ++i)
+	{
+		if (face.mIndices[i] >= face.mNumVertices)
+		{
+			llwarns << "Face has invalid index." << llendl;
+			return false;
+		}
+	}
+
+	return true;
+}
+
+bool validate_model(const LLModel* mdl)
+{
+	if (mdl->getNumVolumeFaces() == 0)
+	{
+		llwarns << "Model has no faces!" << llendl;
+		return false;
+	}
+	
+	for (S32 i = 0; i < mdl->getNumVolumeFaces(); ++i)
+	{
+		if (mdl->getVolumeFace(i).mNumVertices == 0)
+		{
+			llwarns << "Face has no vertices." << llendl;
+			return false;
+		}
+
+		if (mdl->getVolumeFace(i).mNumIndices == 0)
+		{
+			llwarns << "Face has no indices." << llendl;
+			return false;
+		}
+
+		if (!validate_face(mdl->getVolumeFace(i)))
+		{
+			return false;
+		}
+	}
+
+	return true;
+}
+
+BOOL stop_gloderror()
+{
+	GLuint error = glodGetError();
+
+	if (error != GLOD_NO_ERROR)
+	{
+		llwarns << "GLOD error detected, cannot generate LOD: " << std::hex << error << llendl;
+		return TRUE;
+	}
+
+	return FALSE;
+}
+
+LLPhysicsDecompFloater::LLPhysicsDecompFloater(LLSD& key)
+: LLFloater(key)
+{
+
+}
+
+LLPhysicsDecompFloater::~LLPhysicsDecompFloater()
+{
+	if (LLFloaterModelPreview::sInstance && LLFloaterModelPreview::sInstance->mDecompFloater)
+	{
+		LLFloaterModelPreview::sInstance->mDecompFloater = NULL;
+	}
+}
+
+class LLMeshFilePicker : public LLFilePickerThread
+{
+public:
+	LLFloaterModelPreview* mFMP;
+	S32 mLOD;
+
+	LLMeshFilePicker(LLFloaterModelPreview* fmp, S32 lod)
+		: LLFilePickerThread(LLFilePicker::FFLOAD_COLLADA)
+	{
+		mFMP = fmp;
+		mLOD = lod;
+	}
+
+	virtual void notify(const std::string& filename)
+	{
+		mFMP->mModelPreview->loadModel(mFile, mLOD);
+	}
+};
+
+
+//-----------------------------------------------------------------------------
+// LLFloaterModelPreview()
+//-----------------------------------------------------------------------------
+LLFloaterModelPreview::LLFloaterModelPreview(const LLSD& key) : 
+	LLFloater(key)
+{
+	sInstance = this;
+	mLastMouseX = 0;
+	mLastMouseY = 0;
+	mGLName = 0;
+	mLoading = FALSE;
+	mDecompFloater = NULL;
+}
+
+//-----------------------------------------------------------------------------
+// postBuild()
+//-----------------------------------------------------------------------------
+BOOL LLFloaterModelPreview::postBuild()
+{
+	if (!LLFloater::postBuild())
+	{
+		return FALSE;
+	}
+
+	childSetCommitCallback("high detail combo", onHighLODCommit, this);
+	childSetCommitCallback("medium detail combo", onMediumLODCommit, this);
+	childSetCommitCallback("low detail combo", onLowLODCommit, this);
+	childSetCommitCallback("lowest detail combo", onLowestLODCommit, this);
+	childSetCommitCallback("physics detail combo", onPhysicsLODCommit, this);
+
+
+	childSetCommitCallback("high limit", onHighLimitCommit, this);
+	childSetCommitCallback("medium limit", onMediumLimitCommit, this);
+	childSetCommitCallback("low limit", onLowLimitCommit, this);
+	childSetCommitCallback("lowest limit", onLowestLimitCommit, this);
+	childSetCommitCallback("physics limit", onPhysicsLimitCommit, this);
+
+	childSetCommitCallback("smooth normals", onSmoothNormalsCommit, this);
+
+	childSetCommitCallback("show edges", onShowEdgesCommit, this);
+	childSetCommitCallback("auto fill", onAutoFillCommit, this);
+
+	childSetCommitCallback("explode", onExplodeCommit, this);
+
+	childSetTextArg("status", "[STATUS]", getString("status_idle"));
+
+	for (S32 lod = 0; lod < LLModel::NUM_LODS; ++lod)
+	{
+		if (lod == LLModel::LOD_PHYSICS)
+		{
+			childSetTextArg(info_name[lod], "[HULLS]", std::string("0"));
+			childSetTextArg(info_name[lod], "[POINTS]", std::string("0"));
+		}
+		else
+		{
+			childSetTextArg(info_name[lod], "[TRIANGLES]", std::string("0"));
+			childSetTextArg(info_name[lod], "[VERTICES]", std::string("0"));
+			childSetTextArg(info_name[lod], "[SUBMESHES]", std::string("0"));
+			std::string msg = getString("required");
+			childSetTextArg(info_name[lod], "[MESSAGE]", msg);
+		}
+
+		childSetVisible(limit_name[lod], FALSE);
+	}
+
+	//childSetLabelArg("ok_btn", "[AMOUNT]", llformat("%d",sUploadAmount));
+	childSetAction("ok_btn", onUpload, this);
+
+	childSetAction("consolidate", onConsolidate, this);
+	childSetAction("scrub materials", onScrubMaterials, this);
+
+	childSetAction("decompose_btn", onDecompose, this);
+
+	childSetCommitCallback("preview_lod_combo", onPreviewLODCommit, this);
+	
+	const U32 width = 512;
+	const U32 height = 512;
+
+	mPreviewRect.set(getRect().getWidth()-PREVIEW_HPAD-width,
+				PREVIEW_HPAD+height,
+				getRect().getWidth()-PREVIEW_HPAD,
+				PREVIEW_HPAD);
+
+	mModelPreview = new LLModelPreview(512, 512, this);
+	mModelPreview->setPreviewTarget(16.f);
+	
+	return TRUE;
+}
+
+//-----------------------------------------------------------------------------
+// LLFloaterModelPreview()
+//-----------------------------------------------------------------------------
+LLFloaterModelPreview::~LLFloaterModelPreview()
+{
+	sInstance = NULL;
+
+	delete mModelPreview;
+	
+	if (mGLName)
+	{
+		LLImageGL::deleteTextures(1, &mGLName );
+	}
+
+	if (mDecompFloater)
+	{
+		mDecompFloater->closeFloater();
+		mDecompFloater = NULL;
+	}	
+}
+
+void LLFloaterModelPreview::loadModel(S32 lod)
+{
+	mLoading = TRUE;
+
+	(new LLMeshFilePicker(this, lod))->getFile();
+}
+
+void LLFloaterModelPreview::setLODMode(S32 lod, S32 mode)
+{
+	if (mode == 0)
+	{
+		loadModel(lod);
+	}
+	else if (mode != mModelPreview->mLODMode[lod])
+	{
+		mModelPreview->mLODMode[lod] = mode;
+		mModelPreview->genLODs(lod);
+	}
+
+	mModelPreview->setPreviewLOD(lod);
+	
+	
+	LLSpinCtrl* lim = getChild<LLSpinCtrl>(limit_name[lod], TRUE);
+
+	if (mode == 1) //triangle count
+	{
+		U32 tri_count = 0;
+		for (LLModelLoader::model_list::iterator iter = mModelPreview->mBaseModel.begin();
+				iter != mModelPreview->mBaseModel.end(); ++iter)
+		{
+			tri_count += (*iter)->getNumTriangles();
+		}
+
+		lim->setMaxValue(tri_count);
+		lim->setVisible(TRUE);
+	}
+	else
+	{
+		lim->setVisible(FALSE);
+	}
+}
+
+void LLFloaterModelPreview::setLimit(S32 lod, S32 limit)
+{
+	if (limit != mModelPreview->mLimit[lod])
+	{
+		mModelPreview->mLimit[lod] = limit;
+		mModelPreview->genLODs(lod);
+		mModelPreview->setPreviewLOD(lod);
+	}
+}
+
+void LLFloaterModelPreview::onPreviewLODCommit(LLUICtrl* ctrl, void* userdata)
+{
+	LLFloaterModelPreview *fp =(LLFloaterModelPreview *)userdata;
+	
+	if (!fp->mModelPreview)
+	{
+		return;
+	}
+
+	S32 which_mode = 0;
+
+	LLCtrlSelectionInterface* iface = fp->childGetSelectionInterface("preview_lod_combo");
+	if (iface)
+	{
+		which_mode = iface->getFirstSelectedIndex();
+	}
+	fp->mModelPreview->setPreviewLOD(which_mode);
+}
+
+//static 
+void LLFloaterModelPreview::setLODMode(S32 lod, void* userdata)
+{
+	LLFloaterModelPreview *fp =(LLFloaterModelPreview *)userdata;
+	
+	if (!fp->mModelPreview)
+	{
+		return;
+	}
+
+	S32 which_mode = 0;
+
+	std::string combo_name[] =
+	{
+		"lowest detail combo",
+		"low detail combo",
+		"medium detail combo",
+		"high detail combo",
+		"physics detail combo",
+
+		"I went off the end of the combo_name array.  Me so smart."
+	};
+
+	LLCtrlSelectionInterface* iface = fp->childGetSelectionInterface(combo_name[lod]);
+	if (iface)
+	{
+		which_mode = iface->getFirstSelectedIndex();
+	}
+
+	fp->setLODMode(lod, which_mode);
+}
+
+//static 
+void LLFloaterModelPreview::onHighLODCommit(LLUICtrl* ctrl, void* userdata)
+{
+	LLFloaterModelPreview::setLODMode(3, userdata);
+}
+
+//static 
+void LLFloaterModelPreview::onMediumLODCommit(LLUICtrl* ctrl, void* userdata)
+{
+	LLFloaterModelPreview::setLODMode(2, userdata);
+}
+
+//static 
+void LLFloaterModelPreview::onLowLODCommit(LLUICtrl* ctrl, void* userdata)
+{
+	LLFloaterModelPreview::setLODMode(1, userdata);
+}
+
+//static 
+void LLFloaterModelPreview::onLowestLODCommit(LLUICtrl* ctrl, void* userdata)
+{
+	LLFloaterModelPreview::setLODMode(0, userdata);
+}
+
+//static 
+void LLFloaterModelPreview::onPhysicsLODCommit(LLUICtrl* ctrl, void* userdata)
+{
+	LLFloaterModelPreview::setLODMode(4, userdata);
+}
+
+//static 
+void LLFloaterModelPreview::setLimit(S32 lod, void* userdata)
+{
+	LLFloaterModelPreview *fp =(LLFloaterModelPreview *)userdata;
+	
+	if (!fp->mModelPreview)
+	{
+		return;
+	}
+
+	S32 limit = fp->childGetValue(limit_name[lod]).asInteger();
+
+	
+	fp->setLimit(lod, limit);
+}
+
+//static 
+void LLFloaterModelPreview::onHighLimitCommit(LLUICtrl* ctrl, void* userdata)
+{
+	LLFloaterModelPreview::setLimit(3, userdata);
+}
+
+//static 
+void LLFloaterModelPreview::onMediumLimitCommit(LLUICtrl* ctrl, void* userdata)
+{
+	LLFloaterModelPreview::setLimit(2, userdata);
+}
+
+//static 
+void LLFloaterModelPreview::onLowLimitCommit(LLUICtrl* ctrl, void* userdata)
+{
+	LLFloaterModelPreview::setLimit(1, userdata);
+}
+
+//static 
+void LLFloaterModelPreview::onLowestLimitCommit(LLUICtrl* ctrl, void* userdata)
+{
+	LLFloaterModelPreview::setLimit(0, userdata);
+}
+
+//static 
+void LLFloaterModelPreview::onPhysicsLimitCommit(LLUICtrl* ctrl, void* userdata)
+{
+	LLFloaterModelPreview::setLimit(4, userdata);
+}
+
+//static
+void LLFloaterModelPreview::onSmoothNormalsCommit(LLUICtrl* ctrl, void* userdata)
+{
+	LLFloaterModelPreview* fp = (LLFloaterModelPreview*) userdata;
+
+	fp->mModelPreview->smoothNormals();
+}
+
+//static
+void LLFloaterModelPreview::onShowEdgesCommit(LLUICtrl* ctrl, void* userdata)
+{
+	LLFloaterModelPreview* fp = (LLFloaterModelPreview*) userdata;
+
+	fp->mModelPreview->refresh();
+}
+
+//static
+void LLFloaterModelPreview::onExplodeCommit(LLUICtrl* ctrl, void* userdata)
+{
+	LLFloaterModelPreview* fp = (LLFloaterModelPreview*) userdata;
+
+	fp->mModelPreview->refresh();
+}
+
+//static 
+void LLFloaterModelPreview::onAutoFillCommit(LLUICtrl* ctrl, void* userdata)
+{
+	LLFloaterModelPreview* fp = (LLFloaterModelPreview*) userdata;
+
+	fp->mModelPreview->genLODs();
+}
+
+
+//-----------------------------------------------------------------------------
+// draw()
+//-----------------------------------------------------------------------------
+void LLFloaterModelPreview::draw()
+{
+	LLFloater::draw();
+	LLRect r = getRect();
+
+	if (!mLoading)
+	{
+		childSetTextArg("status", "[STATUS]", getString("status_idle"));
+	}
+	
+	childSetTextArg("description_label", "[PRIM_COST]", llformat("%d", mModelPreview->mResourceCost));
+	childSetTextArg("description_label", "[TEXTURES]", llformat("%d", mModelPreview->mTextureSet.size()));
+
+	if (mDecompFloater)
+	{
+		mDecompFloater->childSetText("status", gMeshRepo.mDecompThread->mStatus);
+	}
+
+	U32 resource_cost = mModelPreview->mResourceCost*10;
+
+	if (childGetValue("upload_textures").asBoolean())
+	{
+		resource_cost += mModelPreview->mTextureSet.size()*10;
+	}
+	
+	childSetLabelArg("ok_btn", "[AMOUNT]", llformat("%d", resource_cost));
+	
+	if (mModelPreview)
+	{
+		gGL.color3f(1.f, 1.f, 1.f);
+
+		gGL.getTexUnit(0)->bind(mModelPreview);
+		
+		gGL.begin( LLRender::QUADS );
+		{
+			gGL.texCoord2f(0.f, 1.f);
+			gGL.vertex2i(mPreviewRect.mLeft, mPreviewRect.mTop);
+			gGL.texCoord2f(0.f, 0.f);
+			gGL.vertex2i(mPreviewRect.mLeft, mPreviewRect.mBottom);
+			gGL.texCoord2f(1.f, 0.f);
+			gGL.vertex2i(mPreviewRect.mRight, mPreviewRect.mBottom);
+			gGL.texCoord2f(1.f, 1.f);
+			gGL.vertex2i(mPreviewRect.mRight, mPreviewRect.mTop);
+		}
+		gGL.end();
+
+		gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+	}
+}
+
+//-----------------------------------------------------------------------------
+// handleMouseDown()
+//-----------------------------------------------------------------------------
+BOOL LLFloaterModelPreview::handleMouseDown(S32 x, S32 y, MASK mask)
+{
+	if (mPreviewRect.pointInRect(x, y))
+	{
+		bringToFront( x, y );
+		gFocusMgr.setMouseCapture(this);
+		gViewerWindow->hideCursor();
+		mLastMouseX = x;
+		mLastMouseY = y;
+		return TRUE;
+	}
+
+	return LLFloater::handleMouseDown(x, y, mask);
+}
+
+//-----------------------------------------------------------------------------
+// handleMouseUp()
+//-----------------------------------------------------------------------------
+BOOL LLFloaterModelPreview::handleMouseUp(S32 x, S32 y, MASK mask)
+{
+	gFocusMgr.setMouseCapture(FALSE);
+	gViewerWindow->showCursor();
+	return LLFloater::handleMouseUp(x, y, mask);
+}
+
+//-----------------------------------------------------------------------------
+// handleHover()
+//-----------------------------------------------------------------------------
+BOOL LLFloaterModelPreview::handleHover	(S32 x, S32 y, MASK mask)
+{
+	MASK local_mask = mask & ~MASK_ALT;
+
+	if (mModelPreview && hasMouseCapture())
+	{
+		if (local_mask == MASK_PAN)
+		{
+			// pan here
+			mModelPreview->pan((F32)(x - mLastMouseX) * -0.005f, (F32)(y - mLastMouseY) * -0.005f);
+		}
+		else if (local_mask == MASK_ORBIT)
+		{
+			F32 yaw_radians = (F32)(x - mLastMouseX) * -0.01f;
+			F32 pitch_radians = (F32)(y - mLastMouseY) * 0.02f;
+			
+			mModelPreview->rotate(yaw_radians, pitch_radians);
+		}
+		else 
+		{
+		
+			F32 yaw_radians = (F32)(x - mLastMouseX) * -0.01f;
+			F32 zoom_amt = (F32)(y - mLastMouseY) * 0.02f;
+			
+			mModelPreview->rotate(yaw_radians, 0.f);
+			mModelPreview->zoom(zoom_amt);
+		}
+
+		
+		mModelPreview->refresh();
+		
+		LLUI::setMousePositionLocal(this, mLastMouseX, mLastMouseY);
+	}
+
+	if (!mPreviewRect.pointInRect(x, y) || !mModelPreview)
+	{
+		return LLFloater::handleHover(x, y, mask);
+	}
+	else if (local_mask == MASK_ORBIT)
+	{
+		gViewerWindow->setCursor(UI_CURSOR_TOOLCAMERA);
+	}
+	else if (local_mask == MASK_PAN)
+	{
+		gViewerWindow->setCursor(UI_CURSOR_TOOLPAN);
+	}
+	else
+	{
+		gViewerWindow->setCursor(UI_CURSOR_TOOLZOOMIN);
+	}
+
+	return TRUE;
+}
+
+//-----------------------------------------------------------------------------
+// handleScrollWheel()
+//-----------------------------------------------------------------------------
+BOOL LLFloaterModelPreview::handleScrollWheel(S32 x, S32 y, S32 clicks)
+{
+	if (mPreviewRect.pointInRect(x, y) && mModelPreview)
+	{
+		mModelPreview->zoom((F32)clicks * -0.2f);
+		mModelPreview->refresh();
+	}
+
+	return TRUE;
+}
+
+//static
+void LLFloaterModelPreview::onPhysicsParamCommit(LLUICtrl* ctrl, void* data)
+{
+	LLCDParam* param = (LLCDParam*) data;
+
+	LLCDResult ret = LLCD_OK;
+
+	if (LLConvexDecomposition::getInstance() == NULL)
+	{
+		llinfos << "convex decomposition tool is a stub on this platform. cannot get decomp." << llendl;
+		return;
+	}
+
+	if (param->mType == LLCDParam::LLCD_FLOAT)
+	{
+		ret = LLConvexDecomposition::getInstance()->setParam(param->mName, (F32) ctrl->getValue().asReal());
+	}
+	else if (param->mType == LLCDParam::LLCD_INTEGER ||
+		param->mType == LLCDParam::LLCD_ENUM)
+	{
+		ret = LLConvexDecomposition::getInstance()->setParam(param->mName, ctrl->getValue().asInteger());
+	}
+	else if (param->mType == LLCDParam::LLCD_BOOLEAN)
+	{
+		ret = LLConvexDecomposition::getInstance()->setParam(param->mName, ctrl->getValue().asBoolean());
+	}
+
+	if (ret)
+	{
+		llerrs << "WTF?" << llendl;
+	}
+}
+
+//static
+void LLFloaterModelPreview::onPhysicsStageExecute(LLUICtrl* ctrl, void* data)
+{
+	LLCDStageData* stage = (LLCDStageData*) data;
+	
+	LLModel* mdl = NULL;
+
+	if (sInstance)
+	{
+		if (sInstance->mModelPreview)
+		{
+			if (sInstance->mDecompFloater)
+			{
+				S32 idx = sInstance->mDecompFloater->childGetValue("model").asInteger();
+				if (idx >= 0 && idx < sInstance->mModelPreview->mModel[LLModel::LOD_PHYSICS].size())
+				{
+					mdl = sInstance->mModelPreview->mModel[LLModel::LOD_PHYSICS][idx];
+				}
+			}
+		}
+	}
+	
+	if (mdl)
+	{
+		gMeshRepo.mDecompThread->execute(stage->mName, mdl);
+	}
+}
+
+//static
+void LLFloaterModelPreview::onPhysicsStageCancel(LLUICtrl* ctrl, void*data)
+{
+	gMeshRepo.mDecompThread->cancel();
+}
+
+void LLFloaterModelPreview::showDecompFloater()
+{
+	if (!mDecompFloater)
+	{
+		LLSD key;
+		mDecompFloater = new LLPhysicsDecompFloater(key);
+	
+		S32 left = 20;
+		S32 right = 270;
+
+		S32 cur_y = 30;
+
+		{
+			//add status text
+			LLTextBox::Params p;
+			p.name("status");
+			p.rect(LLRect(left, cur_y, right-80, cur_y-20));
+			mDecompFloater->addChild(LLUICtrlFactory::create<LLTextBox>(p));
+		}
+
+
+		{ //add cancel button
+			LLButton::Params p;
+			p.name("Cancel");
+			p.label("Cancel");
+			p.rect(LLRect(right-80, cur_y, right, cur_y-20));		
+			LLButton* button = LLUICtrlFactory::create<LLButton>(p);
+			button->setCommitCallback(onPhysicsStageCancel, NULL);		
+			mDecompFloater->addChild(button);
+		}
+
+		cur_y += 30;
+
+
+		const LLCDStageData* stage;
+		S32 stage_count = 0;
+		if (LLConvexDecomposition::getInstance() != NULL)
+		{
+			stage_count = LLConvexDecomposition::getInstance()->getStages(&stage);
+		}
+
+		const LLCDParam* param;
+		S32 param_count = 0;
+		if (LLConvexDecomposition::getInstance() != NULL)
+		{
+			param_count = LLConvexDecomposition::getInstance()->getParameters(&param);
+		}
+
+		for (S32 j = stage_count-1; j >= 0; --j)
+		{
+			LLButton::Params p;
+			p.name(stage[j].mName);
+			p.label(stage[j].mName);
+			p.rect(LLRect(left, cur_y, right, cur_y-20));		
+			LLButton* button = LLUICtrlFactory::create<LLButton>(p);
+			button->setCommitCallback(onPhysicsStageExecute, (void*) &stage[j]);		
+			mDecompFloater->addChild(button);
+			gMeshRepo.mDecompThread->mStageID[stage[j].mName] = j;
+			cur_y += 30;
+			// protected against stub by stage_count being 0 for stub above
+			LLConvexDecomposition::getInstance()->registerCallback(j, LLPhysicsDecomp::llcdCallback);
+
+			for (S32 i = 0; i < param_count; ++i)
+			{
+				if (param[i].mStage != j)
+				{
+					continue;
+				}
+
+				if (param[i].mType == LLCDParam::LLCD_FLOAT)
+				{
+					LLSliderCtrl::Params p;
+					p.name(param[i].mName);
+					p.label(param[i].mName);
+					p.rect(LLRect(left, cur_y, right, cur_y-20));
+					p.min_value(param[i].mDetails.mRange.mLow.mFloat);
+					p.max_value(param[i].mDetails.mRange.mHigh.mFloat);
+					p.increment(param[i].mDetails.mRange.mDelta.mFloat);
+					p.decimal_digits(3);
+					p.initial_value(param[i].mDefault.mFloat);
+					LLSliderCtrl* slider = LLUICtrlFactory::create<LLSliderCtrl>(p);
+					slider->setCommitCallback(onPhysicsParamCommit, (void*) &param[i]);
+					mDecompFloater->addChild(slider);
+					cur_y += 30;
+				}
+				else if (param[i].mType == LLCDParam::LLCD_INTEGER)
+				{
+					LLSliderCtrl::Params p;
+					p.name(param[i].mName);
+					p.label(param[i].mName);
+					p.rect(LLRect(left, cur_y, right, cur_y-20));
+					p.min_value(param[i].mDetails.mRange.mLow.mIntOrEnumValue);
+					p.max_value(param[i].mDetails.mRange.mHigh.mIntOrEnumValue);
+					p.increment(param[i].mDetails.mRange.mDelta.mIntOrEnumValue);
+					p.initial_value(param[i].mDefault.mIntOrEnumValue);
+					LLSliderCtrl* slider = LLUICtrlFactory::create<LLSliderCtrl>(p);
+					slider->setCommitCallback(onPhysicsParamCommit, (void*) &param[i]);
+					mDecompFloater->addChild(slider);	
+					cur_y += 30;
+				}
+				else if (param[i].mType == LLCDParam::LLCD_BOOLEAN)
+				{
+					LLCheckBoxCtrl::Params p;
+					p.rect(LLRect(left, cur_y, right, cur_y-20));
+					p.name(param[i].mName);
+					p.label(param[i].mName);
+					p.initial_value(param[i].mDefault.mBool);
+					LLCheckBoxCtrl* check_box = LLUICtrlFactory::create<LLCheckBoxCtrl>(p);
+					check_box->setCommitCallback(onPhysicsParamCommit, (void*) &param[i]);
+					mDecompFloater->addChild(check_box);
+					cur_y += 30;
+				}
+				else if (param[i].mType == LLCDParam::LLCD_ENUM)
+				{
+					LLComboBox::Params p;
+					p.rect(LLRect(left, cur_y, right/3, cur_y-20));
+					p.name(param[i].mName);
+					p.label(param[i].mName);
+					LLComboBox* combo_box = LLUICtrlFactory::create<LLComboBox>(p);
+					for (S32 k = 0; k < param[i].mDetails.mEnumValues.mNumEnums; ++k)
+					{
+						combo_box->add(param[i].mDetails.mEnumValues.mEnumsArray[k].mName, 
+							LLSD::Integer(param[i].mDetails.mEnumValues.mEnumsArray[k].mValue));
+					}
+					combo_box->setValue(param[i].mDefault.mIntOrEnumValue);
+					combo_box->setCommitCallback(onPhysicsParamCommit, (void*) &param[i]);
+					mDecompFloater->addChild(combo_box);
+					cur_y += 30;
+				}
+			}
+		}
+
+		//mesh render checkbox
+		{
+			LLCheckBoxCtrl::Params p;
+			p.label("Mesh: ");
+			p.name("render_mesh");
+			p.rect(LLRect(left, cur_y, right/4, cur_y-20));
+			LLCheckBoxCtrl* check = LLUICtrlFactory::create<LLCheckBoxCtrl>(p);
+			check->setValue(true);
+			mDecompFloater->addChild(check);
+		}
+
+		//hull render checkbox
+		{
+			LLCheckBoxCtrl::Params p;
+			p.label("Hull: ");
+			p.name("render_hull");
+			p.rect(LLRect(right/4, cur_y, right/2, cur_y-20));
+			LLCheckBoxCtrl* check = LLUICtrlFactory::create<LLCheckBoxCtrl>(p);
+			check->setValue(true);
+			mDecompFloater->addChild(check);
+		}
+
+		{ //submesh combo box label
+			LLTextBox::Params p;
+			p.label("Model");
+			p.name("model label");
+			p.rect(LLRect(right/3, cur_y, right/2, cur_y-20));
+			LLTextBox* text_box = LLUICtrlFactory::create<LLTextBox>(p);
+			text_box->setValue("Model");
+			mDecompFloater->addChild(text_box);
+		}
+		{
+			//add submesh combo box
+			LLComboBox::Params p;
+			p.rect(LLRect(right/2, cur_y, right, cur_y-20));
+			p.name("model");
+			LLComboBox* combo_box = LLUICtrlFactory::create<LLComboBox>(p);
+			for (S32 i = 0; i < mModelPreview->mBaseModel.size(); ++i)
+			{
+				LLModel* mdl = mModelPreview->mBaseModel[i];
+				combo_box->add(mdl->mLabel, i);
+			}
+			combo_box->setValue(0);
+			mDecompFloater->addChild(combo_box);
+			cur_y += 30;
+		}
+
+		mDecompFloater->childSetCommitCallback("model", LLFloaterModelPreview::refresh, LLFloaterModelPreview::sInstance);
+		mDecompFloater->childSetCommitCallback("render_mesh", LLFloaterModelPreview::refresh, LLFloaterModelPreview::sInstance);
+		mDecompFloater->childSetCommitCallback("render_hull", LLFloaterModelPreview::refresh, LLFloaterModelPreview::sInstance);
+
+		mDecompFloater->setRect(LLRect(10, cur_y+20, right+20, 10)); 
+	}
+
+	mDecompFloater->openFloater();
+}
+
+//-----------------------------------------------------------------------------
+// onMouseCaptureLost()
+//-----------------------------------------------------------------------------
+// static
+void LLFloaterModelPreview::onMouseCaptureLostModelPreview(LLMouseHandler* handler)
+{
+	gViewerWindow->showCursor();
+}
+
+//-----------------------------------------------------------------------------
+// LLModelLoader
+//-----------------------------------------------------------------------------
+LLModelLoader::LLModelLoader(std::string filename, S32 lod, LLModelPreview* preview)
+: LLThread("Model Loader"), mFilename(filename), mLod(lod), mPreview(preview), mState(STARTING), mFirstTransform(TRUE)
+{
+	mJointMap["mPelvis"] = "mPelvis";
+	mJointMap["mTorso"] = "mTorso";
+	mJointMap["mChest"] = "mChest";
+	mJointMap["mNeck"] = "mNeck";
+	mJointMap["mHead"] = "mHead";
+	mJointMap["mSkull"] = "mSkull";
+	mJointMap["mEyeRight"] = "mEyeRight";
+	mJointMap["mEyeLeft"] = "mEyeLeft";
+	mJointMap["mCollarLeft"] = "mCollarLeft";
+	mJointMap["mShoulderLeft"] = "mShoulderLeft";
+	mJointMap["mElbowLeft"] = "mElbowLeft";
+	mJointMap["mWristLeft"] = "mWristLeft";
+	mJointMap["mCollarRight"] = "mCollarRight";
+	mJointMap["mShoulderRight"] = "mShoulderRight";
+	mJointMap["mElbowRight"] = "mElbowRight";
+	mJointMap["mWristRight"] = "mWristRight";
+	mJointMap["mHipRight"] = "mHipRight";
+	mJointMap["mKneeRight"] = "mKneeRight";
+	mJointMap["mAnkleRight"] = "mAnkleRight";
+	mJointMap["mFootRight"] = "mFootRight";
+	mJointMap["mToeRight"] = "mToeRight";
+	mJointMap["mHipLeft"] = "mHipLeft";
+	mJointMap["mKneeLeft"] = "mKneeLeft";
+	mJointMap["mAnkleLeft"] = "mAnkleLeft";
+	mJointMap["mFootLeft"] = "mFootLeft";
+	mJointMap["mToeLeft"] = "mToeLeft";
+
+	mJointMap["avatar_mPelvis"] = "mPelvis";
+	mJointMap["avatar_mTorso"] = "mTorso";
+	mJointMap["avatar_mChest"] = "mChest";
+	mJointMap["avatar_mNeck"] = "mNeck";
+	mJointMap["avatar_mHead"] = "mHead";
+	mJointMap["avatar_mSkull"] = "mSkull";
+	mJointMap["avatar_mEyeRight"] = "mEyeRight";
+	mJointMap["avatar_mEyeLeft"] = "mEyeLeft";
+	mJointMap["avatar_mCollarLeft"] = "mCollarLeft";
+	mJointMap["avatar_mShoulderLeft"] = "mShoulderLeft";
+	mJointMap["avatar_mElbowLeft"] = "mElbowLeft";
+	mJointMap["avatar_mWristLeft"] = "mWristLeft";
+	mJointMap["avatar_mCollarRight"] = "mCollarRight";
+	mJointMap["avatar_mShoulderRight"] = "mShoulderRight";
+	mJointMap["avatar_mElbowRight"] = "mElbowRight";
+	mJointMap["avatar_mWristRight"] = "mWristRight";
+	mJointMap["avatar_mHipRight"] = "mHipRight";
+	mJointMap["avatar_mKneeRight"] = "mKneeRight";
+	mJointMap["avatar_mAnkleRight"] = "mAnkleRight";
+	mJointMap["avatar_mFootRight"] = "mFootRight";
+	mJointMap["avatar_mToeRight"] = "mToeRight";
+	mJointMap["avatar_mHipLeft"] = "mHipLeft";
+	mJointMap["avatar_mKneeLeft"] = "mKneeLeft";
+	mJointMap["avatar_mAnkleLeft"] = "mAnkleLeft";
+	mJointMap["avatar_mFootLeft"] = "mFootLeft";
+	mJointMap["avatar_mToeLeft"] = "mToeLeft";
+
+
+	mJointMap["hip"] = "mPelvis";
+	mJointMap["abdomen"] = "mTorso";
+	mJointMap["chest"] = "mChest";
+	mJointMap["neck"] = "mNeck";
+	mJointMap["head"] = "mHead";
+	mJointMap["figureHair"] = "mSkull";
+	mJointMap["lCollar"] = "mCollarLeft";
+	mJointMap["lShldr"] = "mShoulderLeft";
+	mJointMap["lForeArm"] = "mElbowLeft";
+	mJointMap["lHand"] = "mWristLeft";
+	mJointMap["rCollar"] = "mCollarRight";
+	mJointMap["rShldr"] = "mShoulderRight";
+	mJointMap["rForeArm"] = "mElbowRight";
+	mJointMap["rHand"] = "mWristRight";
+	mJointMap["rThigh"] = "mHipRight";
+	mJointMap["rShin"] = "mKneeRight";
+	mJointMap["rFoot"] = "mFootRight";
+	mJointMap["lThigh"] = "mHipLeft";
+	mJointMap["lShin"] = "mKneeLeft";
+	mJointMap["lFoot"] = "mFootLeft";
+}
+
+void stretch_extents(LLModel* model, LLMatrix4a& mat, LLVector4a& min, LLVector4a& max, BOOL& first_transform)
+{
+	LLVector4a box[] = 
+	{
+		LLVector4a(-1, 1,-1),
+		LLVector4a(-1, 1, 1),
+		LLVector4a(-1,-1,-1),
+		LLVector4a(-1,-1, 1),
+		LLVector4a( 1, 1,-1),
+		LLVector4a( 1, 1, 1),
+		LLVector4a( 1,-1,-1),
+		LLVector4a( 1,-1, 1),
+	};
+
+	for (S32 j = 0; j < model->getNumVolumeFaces(); ++j)
+	{
+		const LLVolumeFace& face = model->getVolumeFace(j);
+		
+		LLVector4a center;
+		center.setAdd(face.mExtents[0], face.mExtents[1]);
+		center.mul(0.5f);
+		LLVector4a size;
+		size.setSub(face.mExtents[1],face.mExtents[0]);
+		size.mul(0.5f);
+
+		for (U32 i = 0; i < 8; i++)
+		{
+			LLVector4a t;
+			t.setMul(size, box[i]);
+			t.add(center);
+
+			LLVector4a v;
+
+			mat.affineTransform(t, v);								
+			
+			if (first_transform)
+			{
+				first_transform = FALSE;
+				min = max = v;
+			}
+			else
+			{
+				update_min_max(min, max, v);
+			}
+		}
+	}
+}
+
+void stretch_extents(LLModel* model, LLMatrix4& mat, LLVector3& min, LLVector3& max, BOOL& first_transform)
+{
+	LLVector4a mina, maxa;
+	LLMatrix4a mata;
+
+	mata.loadu(mat);
+	mina.load3(min.mV);
+	maxa.load3(max.mV);
+
+	stretch_extents(model, mata, mina, maxa, first_transform);
+	
+	min.set(mina.getF32ptr());
+	max.set(maxa.getF32ptr());
+}
+
+void LLModelLoader::run()
+{
+	DAE dae;
+	domCOLLADA* dom = dae.open(mFilename);
+
+	if (dom)
+	{
+		daeDatabase* db = dae.getDatabase();
+
+		daeInt count = db->getElementCount(NULL, COLLADA_TYPE_MESH);
+
+		daeDocument* doc = dae.getDoc(mFilename);
+		if (!doc)
+		{
+			llwarns << "can't find internal doc" << llendl;
+			return;
+		}
+
+		daeElement* root = doc->getDomRoot();
+		if (!root)
+		{
+			llwarns << "document has no root" << llendl;
+			return;
+		}
+
+		//get unit scale
+		mTransform.setIdentity();
+
+		domAsset::domUnit* unit = daeSafeCast<domAsset::domUnit>(root->getDescendant(daeElement::matchType(domAsset::domUnit::ID())));
+
+		if (unit)
+		{
+			F32 meter = unit->getMeter();
+			mTransform.mMatrix[0][0] = meter;
+			mTransform.mMatrix[1][1] = meter;
+			mTransform.mMatrix[2][2] = meter;
+		}
+
+		//get up axis rotation
+		LLMatrix4 rotation;
+
+		domUpAxisType up = UPAXISTYPE_Y_UP;  // default is Y_UP
+		domAsset::domUp_axis* up_axis =
+			daeSafeCast<domAsset::domUp_axis>(root->getDescendant(daeElement::matchType(domAsset::domUp_axis::ID())));
+
+		if (up_axis)
+		{
+			up = up_axis->getValue();
+		}
+		
+		if (up == UPAXISTYPE_X_UP)
+		{
+			rotation.initRotation(0.0f, 90.0f * DEG_TO_RAD, 0.0f);
+		}
+		else if (up == UPAXISTYPE_Y_UP)
+		{
+			rotation.initRotation(90.0f * DEG_TO_RAD, 0.0f, 0.0f);
+		}
+
+		rotation *= mTransform;
+		mTransform = rotation;
+
+
+		for (daeInt idx = 0; idx < count; ++idx)
+		{ //build map of domEntities to LLModel
+			domMesh* mesh = NULL;
+			db->getElement((daeElement**) &mesh, idx, NULL, COLLADA_TYPE_MESH);
+
+			if (mesh)
+			{
+				LLPointer<LLModel> model = LLModel::loadModelFromDomMesh(mesh);
+
+				if (model.notNull() && validate_model(model))
+				{
+					mModelList.push_back(model);
+					mModel[mesh] = model;
+				}
+			}
+		}
+
+		count = db->getElementCount(NULL, COLLADA_TYPE_SKIN);
+		for (daeInt idx = 0; idx < count; ++idx)
+		{ //add skinned meshes as instances
+			domSkin* skin = NULL;
+			db->getElement((daeElement**) &skin, idx, NULL, COLLADA_TYPE_SKIN);
+
+			if (skin)
+			{	
+				domGeometry* geom = daeSafeCast<domGeometry>(skin->getSource().getElement());
+				
+				if (geom)
+				{
+					domMesh* mesh = geom->getMesh();
+					if (mesh)
+					{
+						LLModel* model = mModel[mesh];
+						if (model)
+						{
+							LLVector3 mesh_scale_vector;
+							LLVector3 mesh_translation_vector;
+							model->getNormalizedScaleTranslation(mesh_scale_vector, mesh_translation_vector);
+
+							LLMatrix4 normalized_transformation;
+							normalized_transformation.setTranslation(mesh_translation_vector);
+							
+							LLMatrix4 mesh_scale;
+							mesh_scale.initScale(mesh_scale_vector);
+							mesh_scale *= normalized_transformation;
+							normalized_transformation = mesh_scale;
+
+							glh::matrix4f inv_mat((F32*) normalized_transformation.mMatrix);
+							inv_mat = inv_mat.inverse();
+							LLMatrix4 inverse_normalized_transformation(inv_mat.m);							
+
+							domSkin::domBind_shape_matrix* bind_mat = skin->getBind_shape_matrix();
+
+							if (bind_mat)
+							{ //get bind shape matrix
+								domFloat4x4& dom_value = bind_mat->getValue();
+								
+								for (int i = 0; i < 4; i++)
+								{
+									for(int j = 0; j < 4; j++)
+									{
+										model->mBindShapeMatrix.mMatrix[i][j] = dom_value[i + j*4];
+									}
+								}
+
+								LLMatrix4 trans = normalized_transformation;
+								trans *= model->mBindShapeMatrix;
+								model->mBindShapeMatrix = trans;
+
+							}
+
+							/*{
+								LLMatrix4 rotation;
+								if (up == UPAXISTYPE_X_UP)
+								{
+									rotation.initRotation(0.0f, 90.0f * DEG_TO_RAD, 0.0f);
+								}
+								else if (up == UPAXISTYPE_Z_UP)
+								{
+									rotation.initRotation(90.0f * DEG_TO_RAD, 90.0f * DEG_TO_RAD, 0.0f);
+								}
+
+								rotation *= model->mBindShapeMatrix;
+								model->mBindShapeMatrix = rotation;
+							}*/
+
+							
+							domSkin::domJoints* joints = skin->getJoints();
+
+							domInputLocal_Array& joint_input = joints->getInput_array();
+
+							for (size_t i = 0; i < joint_input.getCount(); ++i)
+							{
+								domInputLocal* input = joint_input.get(i);
+								xsNMTOKEN semantic = input->getSemantic();
+
+								if (strcmp(semantic, COMMON_PROFILE_INPUT_JOINT) == 0)
+								{ //found joint source, fill model->mJointMap and model->mJointList
+									daeElement* elem = input->getSource().getElement();
+									
+									domSource* source = daeSafeCast<domSource>(elem);
+									if (source)
+									{ 
+										
+
+										domName_array* names_source = source->getName_array();
+										
+										if (names_source)
+										{
+											domListOfNames &names = names_source->getValue();					
+
+											for (size_t j = 0; j < names.getCount(); ++j)
+											{
+												std::string name(names.get(j));
+												if (mJointMap.find(name) != mJointMap.end())
+												{
+													name = mJointMap[name];
+												}
+												model->mJointList.push_back(name);
+												model->mJointMap[name] = j;
+											}	
+										}
+										else
+										{
+											domIDREF_array* names_source = source->getIDREF_array();
+											if (names_source)
+											{
+												xsIDREFS& names = names_source->getValue();
+
+												for (size_t j = 0; j < names.getCount(); ++j)
+												{
+													std::string name(names.get(j).getID());
+													if (mJointMap.find(name) != mJointMap.end())
+													{
+														name = mJointMap[name];
+													}
+													model->mJointList.push_back(name);
+													model->mJointMap[name] = j;
+												}
+											}
+										}
+									}
+								}
+								else if (strcmp(semantic, COMMON_PROFILE_INPUT_INV_BIND_MATRIX) == 0)
+								{ //found inv_bind_matrix array, fill model->mInvBindMatrix
+									domSource* source = daeSafeCast<domSource>(input->getSource().getElement());
+									if (source)
+									{
+										domFloat_array* t = source->getFloat_array();
+										if (t)
+										{
+											domListOfFloats& transform = t->getValue();
+											S32 count = transform.getCount()/16;
+
+											for (S32 k = 0; k < count; ++k)
+											{
+												LLMatrix4 mat;
+
+												for (int i = 0; i < 4; i++)
+												{
+													for(int j = 0; j < 4; j++)
+													{
+														mat.mMatrix[i][j] = transform[k*16 + i + j*4];
+													}
+												}
+
+												model->mInvBindMatrix.push_back(mat);
+											}
+										}
+									}
+								}
+							}
+
+							
+							//grab raw position array
+							
+							domVertices* verts = mesh->getVertices();
+							if (verts)
+							{
+								domInputLocal_Array& inputs = verts->getInput_array();
+								for (size_t i = 0; i < inputs.getCount() && model->mPosition.empty(); ++i)
+								{
+									if (strcmp(inputs[i]->getSemantic(), COMMON_PROFILE_INPUT_POSITION) == 0)
+									{
+										domSource* pos_source = daeSafeCast<domSource>(inputs[i]->getSource().getElement());
+										if (pos_source)
+										{
+											domFloat_array* pos_array = pos_source->getFloat_array();
+											if (pos_array)
+											{
+												domListOfFloats& pos = pos_array->getValue();
+												
+												for (size_t j = 0; j < pos.getCount(); j += 3)
+												{
+													if (pos.getCount() <= j+2)
+													{
+														llerrs << "WTF?" << llendl;
+													}
+													
+													LLVector3 v(pos[j], pos[j+1], pos[j+2]);
+
+													//transform from COLLADA space to volume space
+													v = v * inverse_normalized_transformation;
+
+													model->mPosition.push_back(v);
+												}
+											}
+										}
+									}
+								}
+							}
+
+							//grab skin weights array
+							domSkin::domVertex_weights* weights = skin->getVertex_weights();
+							if (weights)
+							{
+								domInputLocalOffset_Array& inputs = weights->getInput_array();
+								domFloat_array* vertex_weights = NULL;
+								for (size_t i = 0; i < inputs.getCount(); ++i)
+								{
+									if (strcmp(inputs[i]->getSemantic(), COMMON_PROFILE_INPUT_WEIGHT) == 0)
+									{
+										domSource* weight_source = daeSafeCast<domSource>(inputs[i]->getSource().getElement());
+										if (weight_source)
+										{
+											vertex_weights = weight_source->getFloat_array();
+										}
+									}
+								}
+
+								if (vertex_weights)
+								{
+									domListOfFloats& w = vertex_weights->getValue();
+									domListOfUInts& vcount = weights->getVcount()->getValue();
+									domListOfInts& v = weights->getV()->getValue();
+
+									U32 c_idx = 0;
+									for (size_t vc_idx = 0; vc_idx < vcount.getCount(); ++vc_idx)
+									{ //for each vertex
+										daeUInt count = vcount[vc_idx];
+
+										//create list of weights that influence this vertex
+										LLModel::weight_list weight_list;
+
+										for (daeUInt i = 0; i < count; ++i)
+										{ //for each weight
+											daeInt joint_idx = v[c_idx++];
+											daeInt weight_idx = v[c_idx++];
+
+											if (joint_idx == -1)
+											{
+												//ignore bindings to bind_shape_matrix
+												continue;
+											}
+
+											F32 weight_value = w[weight_idx];
+
+											weight_list.push_back(LLModel::JointWeight(joint_idx, weight_value));	
+										}
+
+										//sort by joint weight
+										std::sort(weight_list.begin(), weight_list.end(), LLModel::CompareWeightGreater());
+
+										std::vector<LLModel::JointWeight> wght;
+										
+										F32 total = 0.f;
+
+										for (U32 i = 0; i < llmin((U32) 4, (U32) weight_list.size()); ++i)
+										{ //take up to 4 most significant weights
+											if (weight_list[i].mWeight > 0.f)
+											{
+												wght.push_back( weight_list[i] );
+												total += weight_list[i].mWeight;
+											}
+										}
+										
+										F32 scale = 1.f/total;
+										if (scale != 1.f)
+										{ //normalize weights
+											for (U32 i = 0; i < wght.size(); ++i)
+											{ 
+												wght[i].mWeight *= scale;
+											}
+										}
+
+										model->mSkinWeights[model->mPosition[vc_idx]] = wght;
+									}
+									
+									//add instance to scene for this model
+									
+									LLMatrix4 transform;
+									std::vector<LLImportMaterial> materials;
+									materials.resize(model->getNumVolumeFaces());
+									mScene[transform].push_back(LLModelInstance(model, transform, materials));
+									stretch_extents(model, transform, mExtents[0], mExtents[1], mFirstTransform);
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+
+		daeElement* scene = root->getDescendant("visual_scene");
+		if (!scene)
+		{
+			llwarns << "document has no visual_scene" << llendl;
+			return;
+		}
+
+		processElement(scene);
+
+		mPreview->loadModelCallback(mLod);
+	}
+}
+
+void LLModelLoader::processElement(daeElement* element)
+{
+	LLMatrix4 saved_transform = mTransform;
+
+	domTranslate* translate = daeSafeCast<domTranslate>(element);
+	if (translate)
+	{
+		domFloat3 dom_value = translate->getValue();
+
+		LLMatrix4 translation;
+		translation.setTranslation(LLVector3(dom_value[0], dom_value[1], dom_value[2]));
+		
+		translation *= mTransform;
+		mTransform = translation;
+	}
+
+	domRotate* rotate = daeSafeCast<domRotate>(element);
+	if (rotate)
+	{
+		domFloat4 dom_value = rotate->getValue();
+
+		LLMatrix4 rotation;
+		rotation.initRotTrans(dom_value[3] * DEG_TO_RAD, LLVector3(dom_value[0], dom_value[1], dom_value[2]), LLVector3(0, 0, 0));
+
+		rotation *= mTransform;
+		mTransform = rotation;
+	}
+
+	domScale* scale = daeSafeCast<domScale>(element);
+	if (scale)
+	{
+		domFloat3 dom_value = scale->getValue();
+
+		LLMatrix4 scaling;
+		scaling.initScale(LLVector3(dom_value[0], dom_value[1], dom_value[2]));
+
+		scaling *= mTransform;
+		mTransform = scaling;
+	}
+
+	domMatrix* matrix = daeSafeCast<domMatrix>(element);
+	if (matrix)
+	{
+		domFloat4x4 dom_value = matrix->getValue();
+
+		LLMatrix4 matrix_transform;
+
+		for (int i = 0; i < 4; i++)
+		{
+			for(int j = 0; j < 4; j++)
+			{
+				matrix_transform.mMatrix[i][j] = dom_value[i + j*4];
+			}
+		}
+		
+		matrix_transform *= mTransform;
+		mTransform = matrix_transform;
+	}
+
+	domInstance_geometry* instance_geo = daeSafeCast<domInstance_geometry>(element);
+	if (instance_geo)
+	{
+		domGeometry* geo = daeSafeCast<domGeometry>(instance_geo->getUrl().getElement());
+		if (geo)
+		{
+			domMesh* mesh = daeSafeCast<domMesh>(geo->getDescendant(daeElement::matchType(domMesh::ID())));
+			if (mesh)
+			{
+				LLModel* model = mModel[mesh];
+				if (model)
+				{
+					LLMatrix4 transformation = mTransform;
+
+					std::vector<LLImportMaterial> materials = getMaterials(model, instance_geo);
+
+					// adjust the transformation to compensate for mesh normalization
+					LLVector3 mesh_scale_vector;
+					LLVector3 mesh_translation_vector;
+					model->getNormalizedScaleTranslation(mesh_scale_vector, mesh_translation_vector);
+
+					LLMatrix4 mesh_translation;
+					mesh_translation.setTranslation(mesh_translation_vector);
+					mesh_translation *= transformation;
+					transformation = mesh_translation;
+					
+					LLMatrix4 mesh_scale;
+					mesh_scale.initScale(mesh_scale_vector);
+					mesh_scale *= transformation;
+					transformation = mesh_scale;
+					
+					mScene[transformation].push_back(LLModelInstance(model, transformation, materials));
+
+					stretch_extents(model, transformation, mExtents[0], mExtents[1], mFirstTransform);			
+				}
+			}
+		}
+	}
+
+	domInstance_node* instance_node = daeSafeCast<domInstance_node>(element);
+	if (instance_node)
+	{
+		daeElement* instance = instance_node->getUrl().getElement();
+		if (instance)
+		{
+			processElement(instance);
+		}
+	}
+
+	//process children
+	daeTArray< daeSmartRef<daeElement> > children = element->getChildren();
+	for (S32 i = 0; i < children.getCount(); i++)
+	{
+		processElement(children[i]);
+	}
+
+	domNode* node = daeSafeCast<domNode>(element);
+	if (node)
+	{ //this element was a node, restore transform before processiing siblings
+		mTransform = saved_transform;	
+	}
+}
+
+std::vector<LLImportMaterial> LLModelLoader::getMaterials(LLModel* model, domInstance_geometry* instance_geo)
+{
+	std::vector<LLImportMaterial> materials;
+	for (int i = 0; i < model->mMaterialList.size(); i++)
+	{
+		LLImportMaterial import_material;
+
+		domInstance_material* instance_mat = NULL;
+
+		domBind_material::domTechnique_common* technique =
+			daeSafeCast<domBind_material::domTechnique_common>(instance_geo->getDescendant(daeElement::matchType(domBind_material::domTechnique_common::ID())));
+
+		if (technique)
+		{
+			daeTArray< daeSmartRef<domInstance_material> > inst_materials = technique->getChildrenByType<domInstance_material>();
+			for (int j = 0; j < inst_materials.getCount(); j++)
+			{
+				std::string symbol(inst_materials[j]->getSymbol());
+
+				if (symbol == model->mMaterialList[i]) // found the binding
+				{
+					instance_mat = inst_materials[j];
+				}
+			}
+		}
+
+		if (instance_mat)
+		{
+			domMaterial* material = daeSafeCast<domMaterial>(instance_mat->getTarget().getElement());
+			if (material)
+			{
+				domInstance_effect* instance_effect =
+					daeSafeCast<domInstance_effect>(material->getDescendant(daeElement::matchType(domInstance_effect::ID())));
+				if (instance_effect)
+				{
+					domEffect* effect = daeSafeCast<domEffect>(instance_effect->getUrl().getElement());
+					if (effect)
+					{
+						domProfile_COMMON* profile =
+							daeSafeCast<domProfile_COMMON>(effect->getDescendant(daeElement::matchType(domProfile_COMMON::ID())));
+						if (profile)
+						{
+							import_material = profileToMaterial(profile);
+						}
+					}
+				}
+			}
+		}
+		
+		materials.push_back(import_material);
+	}
+
+	return materials;
+}
+
+LLImportMaterial LLModelLoader::profileToMaterial(domProfile_COMMON* material)
+{
+	LLImportMaterial mat;
+	mat.mFullbright = FALSE;
+
+	daeElement* diffuse = material->getDescendant("diffuse");
+	if (diffuse)
+	{
+		domCommon_color_or_texture_type_complexType::domTexture* texture =
+			daeSafeCast<domCommon_color_or_texture_type_complexType::domTexture>(diffuse->getDescendant("texture"));
+		if (texture)
+		{
+			domCommon_newparam_type_Array newparams = material->getNewparam_array();
+			for (S32 i = 0; i < newparams.getCount(); i++)
+			{
+				domFx_surface_common* surface = newparams[i]->getSurface();
+				if (surface)
+				{
+					domFx_surface_init_common* init = surface->getFx_surface_init_common();
+					if (init)
+					{
+						domFx_surface_init_from_common_Array init_from = init->getInit_from_array();
+						
+						if (init_from.getCount() > i)
+						{
+							domImage* image = daeSafeCast<domImage>(init_from[i]->getValue().getElement());
+							if (image)
+							{
+								// we only support init_from now - embedded data will come later
+								domImage::domInit_from* init = image->getInit_from();
+								if (init)
+								{
+									std::string filename = cdom::uriToNativePath(init->getValue().str());
+																					
+									mat.mDiffuseMap = LLViewerTextureManager::getFetchedTextureFromUrl("file://" + filename, TRUE, LLViewerTexture::BOOST_PREVIEW);
+									mat.mDiffuseMap->setLoadedCallback(LLModelPreview::textureLoadedCallback, 0, TRUE, FALSE, this->mPreview, NULL, NULL);
+
+									mat.mDiffuseMap->forceToSaveRawImage();
+									mat.mDiffuseMapFilename = filename;
+									mat.mDiffuseMapLabel = getElementLabel(material);
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+		
+		domCommon_color_or_texture_type_complexType::domColor* color =
+			daeSafeCast<domCommon_color_or_texture_type_complexType::domColor>(diffuse->getDescendant("color"));
+		if (color)
+		{
+			domFx_color_common domfx_color = color->getValue();
+			LLColor4 value = LLColor4(domfx_color[0], domfx_color[1], domfx_color[2], domfx_color[3]);
+			mat.mDiffuseColor = value;
+		}
+	}
+
+	daeElement* emission = material->getDescendant("emission");
+	if (emission)
+	{
+		LLColor4 emission_color = getDaeColor(emission);
+		if (((emission_color[0] + emission_color[1] + emission_color[2]) / 3.0) > 0.25)
+		{
+			mat.mFullbright = TRUE;
+		}
+	}
+
+	return mat;
+}
+
+// try to get a decent label for this element
+std::string LLModelLoader::getElementLabel(daeElement *element)
+{
+	// if we have a name attribute, use it
+	std::string name = element->getAttribute("name");
+	if (name.length())
+	{
+		return name;
+	}
+
+	// if we have an ID attribute, use it
+	if (element->getID())
+	{
+		return std::string(element->getID());
+	}
+
+	// if we have a parent, use it
+	daeElement* parent = element->getParent();
+	if (parent)
+	{
+		// if parent has a name, use it
+		std::string name = parent->getAttribute("name");
+		if (name.length())
+		{
+			return name;
+		}
+
+		// if parent has an ID, use it
+		if (parent->getID())
+		{
+			return std::string(parent->getID());
+		}
+	}
+
+	// try to use our type
+	daeString element_name = element->getElementName();
+	if (element_name)
+	{
+		return std::string(element_name);
+	}
+
+	// if all else fails, use "object"
+	return std::string("object");
+}
+
+LLColor4 LLModelLoader::getDaeColor(daeElement* element)
+{
+	LLColor4 value;
+	domCommon_color_or_texture_type_complexType::domColor* color =
+		daeSafeCast<domCommon_color_or_texture_type_complexType::domColor>(element->getDescendant("color"));
+	if (color)
+	{
+		domFx_color_common domfx_color = color->getValue();
+		value = LLColor4(domfx_color[0], domfx_color[1], domfx_color[2], domfx_color[3]);
+	}
+
+	return value;
+}
+
+//-----------------------------------------------------------------------------
+// LLModelPreview
+//-----------------------------------------------------------------------------
+
+LLModelPreview::LLModelPreview(S32 width, S32 height, LLFloaterModelPreview* fmp) 
+: LLViewerDynamicTexture(width, height, 3, ORDER_MIDDLE, FALSE), LLMutex(NULL)
+{
+	mNeedsUpdate = TRUE;
+	mCameraDistance = 0.f;
+	mCameraYaw = 0.f;
+	mCameraPitch = 0.f;
+	mCameraZoom = 1.f;
+	mTextureName = 0;
+	mPreviewLOD = 3;
+	mModelLoader = NULL;
+
+	mLODMode[0] = 0;
+
+	for (U32 i = 1; i < LLModel::NUM_LODS; i++)
+	{
+		mLODMode[i] = 1;
+		mLimit[i] = 0;
+	}
+
+	mFMP = fmp;
+
+	glodInit();
+}
+
+LLModelPreview::~LLModelPreview()
+{
+	if (mModelLoader)
+	{
+		delete mModelLoader;
+		mModelLoader = NULL;
+	}
+
+	//*HACK : *TODO : turn this back on when we understand why this crashes
+	//glodShutdown();
+}
+
+U32 LLModelPreview::calcResourceCost()
+{
+	rebuildUploadData();
+
+	U32 cost = 0;
+	std::set<LLModel*> accounted;
+	U32 num_points = 0;
+	U32 num_hulls = 0;
+
+	for (U32 i = 0; i < mUploadData.size(); ++i)
+	{
+		LLModelInstance& instance = mUploadData[i];
+
+		if (accounted.find(instance.mModel) == accounted.end())
+		{
+			accounted.insert(instance.mModel);
+
+			LLModel::physics_shape& physics_shape = instance.mLOD[LLModel::LOD_PHYSICS] ? instance.mLOD[LLModel::LOD_PHYSICS]->mPhysicsShape : instance.mModel->mPhysicsShape;
+
+			LLSD ret = LLModel::writeModel("",  
+									instance.mLOD[4], 
+									instance.mLOD[3], 
+									instance.mLOD[2], 
+									instance.mLOD[1], 
+									instance.mLOD[0],
+									physics_shape,
+									TRUE);
+			cost += gMeshRepo.calcResourceCost(ret);
+
+			
+			num_hulls += physics_shape.size();
+			for (U32 i = 0; i < physics_shape.size(); ++i)
+			{
+				num_points += physics_shape[i].size();
+			}
+		}
+	}
+
+	mFMP->childSetTextArg(info_name[LLModel::LOD_PHYSICS], "[HULLS]", llformat("%d",num_hulls));
+	mFMP->childSetTextArg(info_name[LLModel::LOD_PHYSICS], "[POINTS]", llformat("%d",num_points));				
+
+	updateStatusMessages();
+
+	return cost;
+}
+
+void LLModelPreview::rebuildUploadData()
+{
+	mUploadData.clear();
+	mTextureSet.clear();
+
+	//fill uploaddata instance vectors from scene data
+
+	for (LLModelLoader::scene::iterator iter = mBaseScene.begin(); iter != mBaseScene.end(); ++iter)
+	{ //for each transform in scene
+		for (LLModelLoader::model_instance_list::iterator model_iter = iter->second.begin(); model_iter != iter->second.end(); ++model_iter)
+		{ //for each instance with said transform applied
+			LLModelInstance& instance = *model_iter;
+
+			LLModel* base_model = instance.mModel;
+
+			S32 idx = 0;
+			for (idx = 0; idx < mBaseModel.size(); ++idx)
+			{  //find reference instance for this model
+				if (mBaseModel[idx] == base_model)
+				{
+					break;
+				}
+			}
+
+			for (U32 i = 0; i < LLModel::NUM_LODS; i++)
+			{ //fill LOD slots based on reference model index
+				if (!mModel[i].empty())
+				{
+					instance.mLOD[i] = mModel[i][idx];
+				}
+				else
+				{
+					instance.mLOD[i] = NULL;
+				}
+			}
+
+			mUploadData.push_back(instance);
+		}
+	}
+}
+
+
+void LLModelPreview::loadModel(std::string filename, S32 lod)
+{
+	LLMutexLock lock(this);
+	
+	if (mModelLoader)
+	{
+		delete mModelLoader;
+		mModelLoader = NULL;
+	}
+
+	if (filename.empty() && mBaseModel.empty())
+	{
+		mFMP->closeFloater(false);
+		return;
+	}
+
+	if (lod == 3 && !mGroup.empty())
+	{
+		for (std::map<LLModel*, U32>::iterator iter = mGroup.begin(); iter != mGroup.end(); ++iter)
+		{
+			glodDeleteGroup(iter->second);
+			stop_gloderror();
+		}
+
+		for (std::map<LLModel*, U32>::iterator iter = mObject.begin(); iter != mObject.end(); ++iter)
+		{
+			glodDeleteObject(iter->second);
+			stop_gloderror();
+		}
+
+		mGroup.clear();
+		mObject.clear();
+	}
+
+	mModelLoader = new LLModelLoader(filename, lod, this);
+
+	mModelLoader->start();
+
+	mFMP->childSetTextArg("status", "[STATUS]", mFMP->getString("status_reading_file"));
+
+	if (mFMP->childGetValue("description_form").asString().empty())
+	{
+		std::string name = gDirUtilp->getBaseFileName(filename, true);
+		mFMP->childSetValue("description_form", name);
+	}
+
+	mFMP->openFloater();
+}
+
+void LLModelPreview::clearIncompatible(S32 lod)
+{
+	for (U32 i = 0; i <= LLModel::LOD_HIGH; i++)
+	{ //clear out any entries that aren't compatible with this model
+		if (i != lod)
+		{
+			if (mModel[i].size() != mModel[lod].size())
+			{
+				mModel[i].clear();
+				mScene[i].clear();
+				mVertexBuffer[i].clear();
+
+				if (i == LLModel::LOD_HIGH)
+				{
+					mBaseModel = mModel[lod];
+					mBaseScene = mScene[lod];
+					mVertexBuffer[5].clear();
+				}
+			}
+		}
+	}
+}
+
+void LLModelPreview::loadModelCallback(S32 lod)
+{ //NOT the main thread
+	LLMutexLock lock(this);
+	if (!mModelLoader)
+	{
+		return;
+	}
+
+	mModel[lod] = mModelLoader->mModelList;
+	mScene[lod] = mModelLoader->mScene;
+	mVertexBuffer[lod].clear();
+	
+	setPreviewLOD(lod);
+	
+	
+	if (lod == LLModel::LOD_HIGH)
+	{ //save a copy of the highest LOD for automatic LOD manipulation
+		mBaseModel = mModel[lod];
+		mBaseScene = mScene[lod];
+		mVertexBuffer[5].clear();
+		//mModel[lod] = NULL;
+	}
+
+	clearIncompatible(lod);
+
+	mResourceCost = calcResourceCost();
+
+	mPreviewTarget = (mModelLoader->mExtents[0] + mModelLoader->mExtents[1]) * 0.5f;
+	mPreviewScale = (mModelLoader->mExtents[1] - mModelLoader->mExtents[0]) * 0.5f;
+	setPreviewTarget(mPreviewScale.magVec()*2.f);
+
+	mFMP->mLoading = FALSE;
+	refresh();
+}
+
+void LLModelPreview::smoothNormals()
+{
+	S32 which_lod = mPreviewLOD;
+
+
+	if (which_lod > 4 || which_lod < 0 ||
+		mModel[which_lod].empty())
+	{
+		return;
+	}
+
+	F32 angle_cutoff = mFMP->childGetValue("edge threshold").asReal();
+
+	angle_cutoff *= DEG_TO_RAD;
+
+	if (which_lod == 3 && !mBaseModel.empty())
+	{
+		for (LLModelLoader::model_list::iterator iter = mBaseModel.begin(); iter != mBaseModel.end(); ++iter)
+		{
+			(*iter)->smoothNormals(angle_cutoff);
+		}
+
+		mVertexBuffer[5].clear();
+	}
+
+	for (LLModelLoader::model_list::iterator iter = mModel[which_lod].begin(); iter != mModel[which_lod].end(); ++iter)
+	{
+		(*iter)->smoothNormals(angle_cutoff);
+	}
+	
+	mVertexBuffer[which_lod].clear();
+	refresh();
+
+}
+
+void LLModelPreview::consolidate()
+{
+	std::map<LLImportMaterial, std::vector<LLModelInstance> > composite;
+
+	LLMatrix4 identity;
+
+	//bake out each node in current scene to composite
+	for (LLModelLoader::scene::iterator iter = mScene[mPreviewLOD].begin(); iter != mScene[mPreviewLOD].end(); ++iter)
+	{ //for each transform in current scene
+		LLMatrix4 mat = iter->first;
+		glh::matrix4f inv_trans = glh::matrix4f((F32*) mat.mMatrix).inverse().transpose();
+		LLMatrix4 norm_mat(inv_trans.m);
+
+		for (LLModelLoader::model_instance_list::iterator model_iter = iter->second.begin(); model_iter != iter->second.end(); ++model_iter)
+		{ //for each instance with that transform
+			LLModelInstance& source_instance = *model_iter;
+			LLModel* source = source_instance.mModel;
+			
+			if (!validate_model(source))
+			{
+				llerrs << "Invalid model found!" << llendl;
+			}
+
+			for (S32 i = 0; i < source->getNumVolumeFaces(); ++i)
+			{ //for each face in instance
+				const LLVolumeFace& src_face = source->getVolumeFace(i);
+				LLImportMaterial& source_material = source_instance.mMaterial[i];
+
+				//get model in composite that is composite for this material
+				LLModel* model = NULL;
+
+				if (composite.find(source_material) != composite.end())
+				{
+					model = composite[source_material].rbegin()->mModel;
+					if (model->getVolumeFace(0).mNumVertices + src_face.mNumVertices > 65535)
+					{
+						model = NULL;
+					}
+				}
+
+				if (model == NULL)
+				{  //no model found, make new model
+					std::vector<LLImportMaterial> materials;
+					materials.push_back(source_material);
+					LLVolumeParams volume_params;
+					volume_params.setType(LL_PCODE_PROFILE_SQUARE, LL_PCODE_PATH_LINE);
+					model = new LLModel(volume_params, 0.f);
+					model->mLabel = source->mLabel;
+					model->setNumVolumeFaces(0);
+					composite[source_material].push_back(LLModelInstance(model, identity, materials));
+				}
+			
+				model->appendFace(src_face, source->mMaterialList[i], mat, norm_mat);
+			}
+		}
+	}
+
+
+	//condense composite into as few LLModel instances as possible
+	LLModelLoader::model_list new_model;
+	std::vector<LLModelInstance> instance_list;
+	
+	LLVolumeParams volume_params;
+	volume_params.setType(LL_PCODE_PROFILE_SQUARE, LL_PCODE_PATH_LINE);
+
+	std::vector<LLImportMaterial> empty_material;
+	LLModelInstance cur_instance(new LLModel(volume_params, 0.f), identity, empty_material);
+	cur_instance.mModel->setNumVolumeFaces(0);
+
+	BOOL first_transform = TRUE;
+
+	LLModelLoader::scene new_scene;
+	LLVector3 min,max;
+
+	for (std::map<LLImportMaterial, std::vector<LLModelInstance> >::iterator iter = composite.begin();
+			iter != composite.end();
+			++iter)
+	{
+		std::map<LLImportMaterial, std::vector<LLModelInstance> >::iterator next_iter = iter; ++next_iter;
+		
+		for (std::vector<LLModelInstance>::iterator instance_iter = iter->second.begin(); 
+				instance_iter != iter->second.end();
+				++instance_iter)
+		{
+			LLModel* source = instance_iter->mModel;
+
+			if (instance_iter->mMaterial.size() != 1)
+			{
+				llerrs << "WTF?" << llendl;
+			}
+
+			if (source->getNumVolumeFaces() != 1)
+			{
+				llerrs << "WTF?" << llendl;
+			}
+
+			if (source->mMaterialList.size() != 1)
+			{
+				llerrs << "WTF?" << llendl;
+			}
+
+			cur_instance.mModel->addFace(source->getVolumeFace(0));
+			cur_instance.mMaterial.push_back(instance_iter->mMaterial[0]);
+			cur_instance.mModel->mMaterialList.push_back(source->mMaterialList[0]);
+
+			BOOL last_model = FALSE;
+		
+			std::vector<LLModelInstance>::iterator next_instance = instance_iter; ++next_instance;
+
+			if (next_iter == composite.end() &&
+				next_instance == iter->second.end())
+			{
+				last_model = TRUE;
+			}
+
+			if (last_model || cur_instance.mModel->getNumVolumeFaces() >= MAX_MODEL_FACES)
+			{
+				cur_instance.mModel->mLabel = source->mLabel;
+
+				cur_instance.mModel->optimizeVolumeFaces();
+				cur_instance.mModel->normalizeVolumeFaces();
+
+				if (!validate_model(cur_instance.mModel))
+				{
+					llerrs << "Invalid model detected." << llendl;
+				}
+
+				new_model.push_back(cur_instance.mModel);
+
+				LLMatrix4 transformation = LLMatrix4();
+
+				// adjust the transformation to compensate for mesh normalization
+				LLVector3 mesh_scale_vector;
+				LLVector3 mesh_translation_vector;
+				cur_instance.mModel->getNormalizedScaleTranslation(mesh_scale_vector, mesh_translation_vector);
+
+				LLMatrix4 mesh_translation;
+				mesh_translation.setTranslation(mesh_translation_vector);
+				mesh_translation *= transformation;
+				transformation = mesh_translation;
+				
+				LLMatrix4 mesh_scale;
+				mesh_scale.initScale(mesh_scale_vector);
+				mesh_scale *= transformation;
+				transformation = mesh_scale;
+							
+				cur_instance.mTransform = transformation;
+
+				new_scene[transformation].push_back(cur_instance);
+				stretch_extents(cur_instance.mModel, transformation, min, max, first_transform);
+
+				if (!last_model)
+				{
+					cur_instance = LLModelInstance(new LLModel(volume_params, 0.f), identity, empty_material);
+					cur_instance.mModel->setNumVolumeFaces(0);
+				}
+			}
+		}
+	}
+		
+	mScene[mPreviewLOD] = new_scene;
+	mModel[mPreviewLOD] = new_model;
+	mVertexBuffer[mPreviewLOD].clear();
+
+	if (mPreviewLOD == LLModel::LOD_HIGH)
+	{
+		mBaseScene = new_scene;
+		mBaseModel = new_model;
+		mVertexBuffer[5].clear();
+	}
+
+	mPreviewTarget = (min+max)*0.5f;
+	mPreviewScale = (max-min)*0.5f;
+	setPreviewTarget(mPreviewScale.magVec()*2.f);
+
+	clearIncompatible(mPreviewLOD);
+
+	mResourceCost = calcResourceCost();
+	refresh();
+}
+
+void LLModelPreview::scrubMaterials()
+{
+	for (LLModelLoader::scene::iterator iter = mScene[mPreviewLOD].begin(); iter != mScene[mPreviewLOD].end(); ++iter)
+	{ //for each transform in current scene
+		for (LLModelLoader::model_instance_list::iterator model_iter = iter->second.begin(); model_iter != iter->second.end(); ++model_iter)
+		{ //for each instance with that transform
+			LLModelInstance& source_instance = *model_iter;
+			LLModel* source = source_instance.mModel;
+			
+			for (S32 i = 0; i < source->getNumVolumeFaces(); ++i)
+			{ //for each face in instance
+				LLImportMaterial& source_material = source_instance.mMaterial[i];
+
+				//clear material info
+				source_material.mDiffuseColor = LLColor4(1,1,1,1);
+				source_material.mDiffuseMap = NULL;
+				source_material.mDiffuseMapFilename.clear();
+				source_material.mDiffuseMapLabel.clear();
+				source_material.mFullbright = false;
+			}
+		}
+	}
+
+
+	mVertexBuffer[mPreviewLOD].clear();
+
+	if (mPreviewLOD == LLModel::LOD_HIGH)
+	{
+		mBaseScene = mScene[mPreviewLOD];
+		mBaseModel = mModel[mPreviewLOD];
+		mVertexBuffer[5].clear();
+	}
+
+	mResourceCost = calcResourceCost();
+	refresh();
+}
+
+void LLModelPreview::genLODs(S32 which_lod)
+{
+	if (mBaseModel.empty())
+	{
+		return;
+	}
+
+	LLVertexBuffer::unbind();
+
+	stop_gloderror();
+	static U32 cur_name = 1;
+
+	S32 limit = -1;
+
+	if (which_lod != -1)
+	{
+		limit = mLimit[which_lod];
+	}
+
+	U32 triangle_count = 0;
+
+	for (LLModelLoader::model_list::iterator iter = mBaseModel.begin(); iter != mBaseModel.end(); ++iter)
+	{
+		LLModel* mdl = *iter;
+		for (S32 i = 0; i < mdl->getNumVolumeFaces(); ++i)
+		{
+			triangle_count += mdl->getVolumeFace(i).mNumIndices/3;
+		}
+	}
+
+	U32 base_triangle_count = triangle_count;
+
+	U32 type_mask = LLVertexBuffer::MAP_VERTEX | LLVertexBuffer::MAP_NORMAL | LLVertexBuffer::MAP_TEXCOORD0;
+
+	for (LLModelLoader::model_list::iterator iter = mBaseModel.begin(); iter != mBaseModel.end(); ++iter)
+	{ //build GLOD objects for each model in base model list
+		LLModel* mdl = *iter;
+		if (mGroup[mdl] == 0)
+		{
+			mGroup[mdl] = cur_name++;
+			mObject[mdl] = cur_name++;
+
+			glodNewGroup(mGroup[mdl]);
+			stop_gloderror();
+
+			glodGroupParameteri(mGroup[mdl], GLOD_ADAPT_MODE, GLOD_TRIANGLE_BUDGET);
+			stop_gloderror();		
+
+			glodGroupParameteri(mGroup[mdl], GLOD_ERROR_MODE, GLOD_OBJECT_SPACE_ERROR);
+			stop_gloderror();
+
+			glodGroupParameterf(mGroup[mdl], GLOD_OBJECT_SPACE_ERROR_THRESHOLD, 0.025f);
+			stop_gloderror();
+
+			glodNewObject(mObject[mdl], mGroup[mdl], GLOD_DISCRETE);
+			stop_gloderror();
+
+			if (iter == mBaseModel.begin() && !mdl->mSkinWeights.empty())
+			{ //regenerate vertex buffer for skinned models to prevent animation feedback during LOD generation
+				mVertexBuffer[5].clear();
+			}
+
+			if (mVertexBuffer[5].empty())
+			{
+				genBuffers(5);
+			}
+
+			U32 tri_count = 0;
+			for (U32 i = 0; i < mVertexBuffer[5][mdl].size(); ++i)
+			{
+				mVertexBuffer[5][mdl][i]->setBuffer(type_mask);
+				U32 num_indices = mVertexBuffer[5][mdl][i]->getNumIndices();
+				if (num_indices > 2)
+				{
+					glodInsertElements(mObject[mdl], i, GL_TRIANGLES, num_indices, GL_UNSIGNED_SHORT, mVertexBuffer[5][mdl][i]->getIndicesPointer(), 0, 0.f);
+				}
+				tri_count += num_indices/3;
+				stop_gloderror();
+			}
+
+			//store what percentage of total model (in terms of triangle count) this model makes up
+			mPercentage[mdl] = (F32) tri_count / (F32) base_triangle_count;
+
+			//build glodobject
+			glodBuildObject(mObject[mdl]);
+			if (stop_gloderror())
+			{
+				glodDeleteGroup(mGroup[mdl]);
+				stop_gloderror();
+				glodDeleteObject(mObject[mdl]);
+				stop_gloderror();
+
+				mGroup[mdl] = 0;
+				mObject[mdl] = 0;
+
+				if (which_lod == -1)
+				{
+						mModel[LLModel::LOD_HIGH] = mBaseModel;
+				}
+
+				return;
+			}
+
+		}
+		
+		if (which_lod == -1 || mLODMode[which_lod] == 1)
+		{
+			//generating LODs for all entries, or this entry has a triangle budget
+			glodGroupParameteri(mGroup[mdl], GLOD_ADAPT_MODE, GLOD_TRIANGLE_BUDGET);
+			stop_gloderror();		
+		}
+		else
+		{ 
+			//this entry uses error mode
+			glodGroupParameteri(mGroup[mdl], GLOD_ADAPT_MODE, GLOD_OBJECT_SPACE_ERROR);
+			stop_gloderror();
+		}
+
+		if (which_lod != -1 && mLODMode[which_lod] == 2)
+		{
+			glodGroupParameterf(mGroup[mdl], GLOD_OBJECT_SPACE_ERROR_THRESHOLD, llmax(limit/100.f, 0.01f));
+			stop_gloderror();
+		}
+		else
+		{
+			glodGroupParameterf(mGroup[mdl], GLOD_OBJECT_SPACE_ERROR_THRESHOLD, 0.025f);
+			stop_gloderror();
+		}
+	}
+
+
+	S32 start = LLModel::LOD_HIGH;
+	S32 end = 0;
+
+	BOOL error_mode = FALSE;
+
+	if (which_lod != -1)
+	{
+		start = end = which_lod;
+
+		if (mLODMode[which_lod] == 2)
+		{
+			error_mode = TRUE;
+		}
+	}
+	
+	
+	for (S32 lod = start; lod >= end; --lod)
+	{
+		if (!error_mode)
+		{
+			if (which_lod == -1)
+			{
+				if (lod < start)
+				{
+					triangle_count /= 3;
+				}
+			}
+			else
+			{
+				triangle_count = limit;
+			}
+		}
+
+		mModel[lod].clear();
+		mModel[lod].resize(mBaseModel.size());
+		mVertexBuffer[lod].clear();
+
+		U32 actual_tris = 0;
+		U32 actual_verts = 0;
+		U32 submeshes = 0;
+
+		for (U32 mdl_idx = 0; mdl_idx < mBaseModel.size(); ++mdl_idx)
+		{ 
+			LLModel* base = mBaseModel[mdl_idx];
+
+			U32 target_count = U32(mPercentage[base]*triangle_count);
+
+			if (error_mode)
+			{
+				target_count = base->getNumTriangles();
+			}
+
+			if (target_count < 4)
+			{ 
+				target_count = 4;
+			}
+
+			if (which_lod == -1 || mLODMode[which_lod] == 1)
+			{
+				glodGroupParameteri(mGroup[base], GLOD_MAX_TRIANGLES, target_count);
+				stop_gloderror();
+			}
+			
+			glodAdaptGroup(mGroup[base]);
+			stop_gloderror();
+
+			GLint patch_count = 0;
+			glodGetObjectParameteriv(mObject[base], GLOD_NUM_PATCHES, &patch_count);
+			stop_gloderror();
+
+			LLVolumeParams volume_params;
+			volume_params.setType(LL_PCODE_PROFILE_SQUARE, LL_PCODE_PATH_LINE);
+			mModel[lod][mdl_idx] = new LLModel(volume_params, 0.f);
+
+			GLint* sizes = new GLint[patch_count*2];
+			glodGetObjectParameteriv(mObject[base], GLOD_PATCH_SIZES, sizes);
+			stop_gloderror();
+
+			GLint* names = new GLint[patch_count];
+			glodGetObjectParameteriv(mObject[base], GLOD_PATCH_NAMES, names);
+			stop_gloderror();
+
+			mModel[lod][mdl_idx]->setNumVolumeFaces(patch_count);
+			
+			LLModel* target_model = mModel[lod][mdl_idx];
+
+			for (GLint i = 0; i < patch_count; ++i)
+			{
+				LLPointer<LLVertexBuffer> buff = new LLVertexBuffer(type_mask, 0);
+				
+				if (sizes[i*2+1] > 0 && sizes[i*2] > 0)
+				{
+					buff->allocateBuffer(sizes[i*2+1], sizes[i*2], true);
+					buff->setBuffer(type_mask);
+					glodFillElements(mObject[base], names[i], GL_UNSIGNED_SHORT, buff->getIndicesPointer());
+					stop_gloderror();
+				}
+				else
+				{ //this face was eliminated, create a dummy triangle (one vertex, 3 indices, all 0)
+					buff->allocateBuffer(1, 3, true);
+					memset(buff->getMappedData(), 0, buff->getSize());
+					memset(buff->getIndicesPointer(), 0, buff->getIndicesSize());
+				}
+				
+				buff->validateRange(0, buff->getNumVerts()-1, buff->getNumIndices(), 0);
+
+				LLStrider<LLVector3> pos;
+				LLStrider<LLVector3> norm;
+				LLStrider<LLVector2> tc;
+				LLStrider<U16> index;
+
+				buff->getVertexStrider(pos);
+				buff->getNormalStrider(norm);
+				buff->getTexCoord0Strider(tc);
+				buff->getIndexStrider(index);
+
+
+				target_model->setVolumeFaceData(names[i], pos, norm, tc, index, buff->getNumVerts(), buff->getNumIndices());
+				actual_tris += buff->getNumIndices()/3;
+				actual_verts += buff->getNumVerts();
+				++submeshes;
+
+				if (!validate_face(target_model->getVolumeFace(names[i])))
+				{
+					llerrs << "Invalid face generated during LOD generation." << llendl;
+				}
+			}
+
+			//blind copy skin weights and just take closest skin weight to point on
+			//decimated mesh for now (auto-generating LODs with skin weights is still a bit
+			//of an open problem).
+			target_model->mPosition = base->mPosition;
+			target_model->mSkinWeights = base->mSkinWeights;
+			target_model->mJointMap = base->mJointMap;
+			target_model->mJointList = base->mJointList;
+			target_model->mInvBindMatrix = base->mInvBindMatrix;
+			target_model->mBindShapeMatrix = base->mBindShapeMatrix;
+
+			if (!validate_model(target_model))
+			{
+				llerrs << "Invalid model generated when creating LODs" << llendl;
+			}
+
+			delete [] sizes;
+			delete [] names;
+		}
+
+		//rebuild scene based on mBaseScene
+		mScene[lod].clear();
+		mScene[lod] = mBaseScene;
+
+		for (U32 i = 0; i < mBaseModel.size(); ++i)
+		{
+			LLModel* mdl = mBaseModel[i];
+			LLModel* target = mModel[lod][i];
+			if (target)
+			{
+				for (LLModelLoader::scene::iterator iter = mScene[lod].begin(); iter != mScene[lod].end(); ++iter)
+				{
+					for (U32 j = 0; j < iter->second.size(); ++j)
+					{
+						if (iter->second[j].mModel == mdl)
+						{
+							iter->second[j].mModel = target;
+						}
+					}
+				}
+			}
+		}
+		
+		mResourceCost = calcResourceCost();
+	}
+}
+
+void LLModelPreview::updateStatusMessages()
+{
+	//triangle/vertex/submesh count for each mesh asset for each lod
+	std::vector<S32> tris[LLModel::NUM_LODS];
+	std::vector<S32> verts[LLModel::NUM_LODS];
+	std::vector<S32> submeshes[LLModel::NUM_LODS];
+	
+	//total triangle/vertex/submesh count for each lod
+	S32 total_tris[LLModel::NUM_LODS];
+	S32 total_verts[LLModel::NUM_LODS];
+	S32 total_submeshes[LLModel::NUM_LODS];
+
+	for (S32 lod = 0; lod <= LLModel::LOD_HIGH; ++lod)
+	{
+		//initialize total for this lod to 0
+		total_tris[lod] = total_verts[lod] = total_submeshes[lod] = 0;
+
+		for (U32 i = 0; i < mModel[lod].size(); ++i)
+		{ //for each model in the lod
+			S32 cur_tris = 0;
+			S32 cur_verts = 0;
+			S32 cur_submeshes = mModel[lod][i]->getNumVolumeFaces();
+
+			for (S32 j = 0; j < cur_submeshes; ++j)
+			{ //for each submesh (face), add triangles and vertices to current total
+				const LLVolumeFace& face = mModel[lod][i]->getVolumeFace(j);
+				cur_tris += face.mNumIndices/3;
+				cur_verts += face.mNumVertices;
+			}
+
+			//add this model to the lod total
+			total_tris[lod] += cur_tris;
+			total_verts[lod] += cur_verts;
+			total_submeshes[lod] += cur_submeshes;
+
+			//store this model's counts to asset data
+			tris[lod].push_back(cur_tris);
+			verts[lod].push_back(cur_verts);
+			submeshes[lod].push_back(cur_submeshes);
+		}
+	}
+	
+
+	std::string upload_message;
+
+	for (S32 lod = 0; lod <= LLModel::LOD_HIGH; ++lod)
+	{
+		mFMP->childSetTextArg(info_name[lod], "[TRIANGLES]", llformat("%d", total_tris[lod]));
+		mFMP->childSetTextArg(info_name[lod], "[VERTICES]", llformat("%d", total_verts[lod]));
+		mFMP->childSetTextArg(info_name[lod], "[SUBMESHES]", llformat("%d", total_submeshes[lod]));
+
+		std::string message = "good";
+		
+		const U32 lod_high = LLModel::LOD_HIGH;
+
+		if (lod != lod_high)
+		{
+			if (total_submeshes[lod] == 0)
+			{ //no model loaded for this lod, see if one is required
+				for (U32 i = 0; i < verts[lod_high].size(); ++i)
+				{
+					const F32 ratio = 0.5f;
+					const S32 required_verts = 128;
+
+					F32 scaler = powf(0.5f, lod_high-lod);
+					S32 max_verts = verts[lod_high][i]*scaler;
+
+					if (max_verts > required_verts)
+					{ //some model in this slot might have more than 128 vertices
+					  	
+						//if any model higher up the chain has more than 128 vertices, 
+						// lod is required here
+						for (S32 j = lod+1; j <= LLModel::LOD_HIGH; ++j)
+						{
+							if (verts[j].size() > i && verts[j][i] > 128)
+							{
+								message = "required";
+								upload_message = "missing_lod";
+							}
+						}
+					}
+				}
+			}
+			else if (total_submeshes[lod] != total_submeshes[lod_high])
+			{
+				message = "mesh_mismatch";
+				upload_message = "bad_lod";
+			}
+			else if (tris[lod].size() != tris[lod_high].size())
+			{
+				message = "model_mismatch";
+				upload_message = "bad_lod";
+			}
+			else
+			{
+				for (U32 i = 0; i < verts[lod].size(); ++i)
+				{
+					const F32 ratio = 0.5f;
+					
+					F32 scaler = powf(0.5f, lod_high-lod);
+					S32 max_verts = verts[lod_high][i]*scaler;
+
+					if (verts[lod][i] > max_verts)
+					{
+						message = "too_heavy";
+						upload_message = "bad_lod";
+					}
+				}
+			}
+		}
+
+		mFMP->childSetTextArg(info_name[lod], "[MESSAGE]", mFMP->getString(message));
+	}
+
+	if (upload_message.empty())
+	{
+		mFMP->childSetTextArg("upload_message", "[MESSAGE]", std::string(""));
+		mFMP->childEnable("ok_btn");
+	}
+	else
+	{
+		mFMP->childSetTextArg("upload_message", "[MESSAGE]", mFMP->getString(upload_message));
+		mFMP->childDisable("ok_btn");
+	}
+}
+
+void LLModelPreview::setPreviewTarget(F32 distance)
+{ 
+	mCameraDistance = distance;
+	mCameraZoom = 1.f;
+	mCameraPitch = 0.f;
+	mCameraYaw = 0.f;
+	mCameraOffset.clearVec();
+}
+
+void LLModelPreview::genBuffers(S32 lod)
+{
+	U32 tri_count = 0;
+	U32 vertex_count = 0;
+	U32 mesh_count = 0;
+
+	LLModelLoader::model_list* model = NULL;
+
+	if (lod < 0 || lod > 4)
+	{
+		model = &mBaseModel;
+		lod = 5;
+	}
+	else
+	{
+		model = &(mModel[lod]);
+	}
+
+	if (!mVertexBuffer[lod].empty())
+	{
+		mVertexBuffer[lod].clear();
+	}
+
+	mVertexBuffer[lod].clear();
+
+	LLModelLoader::model_list::iterator base_iter = mBaseModel.begin();
+
+	for (LLModelLoader::model_list::iterator iter = model->begin(); iter != model->end(); ++iter)
+	{
+		LLModel* mdl = *iter;
+		if (!mdl)
+		{
+			continue;
+		}
+
+		LLModel* base_mdl = *base_iter;
+		base_iter++;
+
+		for (S32 i = 0; i < mdl->getNumVolumeFaces(); ++i)
+		{
+			const LLVolumeFace &vf = mdl->getVolumeFace(i);
+			U32 num_vertices = vf.mNumVertices;
+			U32 num_indices = vf.mNumIndices;
+
+			if (!num_vertices || ! num_indices)
+			{
+				continue;
+			}
+
+			LLVertexBuffer* vb = NULL;
+			
+			bool skinned = !mdl->mSkinWeights.empty();
+
+			U32 mask = LLVertexBuffer::MAP_VERTEX | LLVertexBuffer::MAP_NORMAL | LLVertexBuffer::MAP_TEXCOORD0;
+			
+			if (skinned)
+			{
+				mask |= LLVertexBuffer::MAP_WEIGHT4;
+			}
+
+			vb = new LLVertexBuffer(mask, 0);
+			
+			vb->allocateBuffer(num_vertices, num_indices, TRUE);
+
+			LLStrider<LLVector3> vertex_strider;
+			LLStrider<LLVector3> normal_strider;
+			LLStrider<LLVector2> tc_strider;
+			LLStrider<U16> index_strider;
+			LLStrider<LLVector4> weights_strider;
+
+			vb->getVertexStrider(vertex_strider);
+			vb->getNormalStrider(normal_strider);
+			vb->getTexCoord0Strider(tc_strider);
+			vb->getIndexStrider(index_strider);
+
+			if (skinned)
+			{
+				vb->getWeight4Strider(weights_strider);
+			}
+			
+			LLVector4a::memcpyNonAliased16((F32*) vertex_strider.get(), (F32*) vf.mPositions, num_vertices*4*sizeof(F32));
+			LLVector4a::memcpyNonAliased16((F32*) tc_strider.get(), (F32*) vf.mTexCoords, num_vertices*2*sizeof(F32));
+			LLVector4a::memcpyNonAliased16((F32*) normal_strider.get(), (F32*) vf.mNormals, num_vertices*4*sizeof(F32));
+
+			if (skinned)
+			{
+				// build vertices and normals
+				for (U32 i = 0; i < num_vertices; i++)
+				{
+					//find closest weight to vf.mVertices[i].mPosition
+					LLVector3 pos(vf.mPositions[i].getF32ptr());
+
+					LLModel::weight_list weight_list = base_mdl->getJointInfluences(pos);
+
+					LLVector4 w(0,0,0,0);
+					if (weight_list.size() > 4)
+					{
+						llerrs << "WTF?" << llendl;
+					}
+
+					for (U32 i = 0; i < weight_list.size(); ++i)
+					{
+						F32 wght = llmin(weight_list[i].mWeight, 0.999999f);
+						F32 joint = (F32) weight_list[i].mJointIdx;
+						w.mV[i] = joint + wght;
+					}
+					
+					*(weights_strider++) = w;
+				}
+			}
+
+			// build indices
+			for (U32 i = 0; i < num_indices; i++)
+			{
+				*(index_strider++) = vf.mIndices[i];
+			}
+
+			mVertexBuffer[lod][mdl].push_back(vb);
+
+			vertex_count += num_vertices;
+			tri_count += num_indices/3;
+			++mesh_count;
+
+		}
+	}
+
+	if (lod == 4)
+	{
+		for (U32 i = 0; i < 4; i++)
+		{
+			LLSpinCtrl* lim = mFMP->getChild<LLSpinCtrl>(limit_name[i], TRUE);
+
+			lim->setMaxValue(tri_count);
+		}
+	}
+}
+
+//-----------------------------------------------------------------------------
+// render()
+//-----------------------------------------------------------------------------
+BOOL LLModelPreview::render()
+{
+	LLMutexLock lock(this);
+	mNeedsUpdate = FALSE;
+
+	S32 width = getWidth();
+	S32 height = getHeight();
+
+	LLGLSUIDefault def;
+	LLGLDisable no_blend(GL_BLEND);
+	LLGLEnable cull(GL_CULL_FACE);
+	LLGLDepthTest depth(GL_TRUE);
+	LLGLDisable fog(GL_FOG);
+
+	glMatrixMode(GL_PROJECTION);
+	gGL.pushMatrix();
+	glLoadIdentity();
+	glOrtho(0.0f, width, 0.0f, height, -1.0f, 1.0f);
+
+	glMatrixMode(GL_MODELVIEW);
+	gGL.pushMatrix();
+	glLoadIdentity();
+		
+	gGL.color4f(0.15f, 0.2f, 0.3f, 1.f);
+
+	gl_rect_2d_simple( width, height );
+
+	bool avatar_preview = false;
+	for (LLModelLoader::scene::iterator iter = mScene[mPreviewLOD].begin(); iter != mScene[mPreviewLOD].end(); ++iter)
+	{
+		for (LLModelLoader::model_instance_list::iterator model_iter = iter->second.begin(); model_iter != iter->second.end(); ++model_iter)
+		{
+			LLModelInstance& instance = *model_iter;
+			LLModel* model = instance.mModel;
+			if (!model->mSkinWeights.empty())
+			{
+				avatar_preview = true;
+			}
+		}
+	}
+
+	mFMP->childSetEnabled("consolidate", !avatar_preview);
+	
+	F32 explode = mFMP->childGetValue("explode").asReal();
+
+	glMatrixMode(GL_PROJECTION);
+	gGL.popMatrix();
+
+	glMatrixMode(GL_MODELVIEW);
+	gGL.popMatrix();
+
+	glClear(GL_DEPTH_BUFFER_BIT);
+
+	LLViewerCamera::getInstance()->setAspect((F32) width / height );
+	LLViewerCamera::getInstance()->setView(LLViewerCamera::getInstance()->getDefaultFOV() / mCameraZoom);
+
+	LLVector3 target_pos = mPreviewTarget;
+	LLVector3 offset = mCameraOffset;
+
+	F32 z_near = llmax(mCameraDistance-mPreviewScale.magVec(), 0.001f);
+	F32 z_far = mCameraDistance+mPreviewScale.magVec();
+
+	if (avatar_preview)
+	{
+		target_pos = gAgentAvatarp->getPositionAgent();
+		z_near = 0.01f;
+		z_far = 1024.f;
+		mCameraDistance = 16.f;
+
+		//render avatar previews every frame
+		refresh();
+	}
+
+	LLQuaternion camera_rot = LLQuaternion(mCameraPitch, LLVector3::y_axis) * 
+		LLQuaternion(mCameraYaw, LLVector3::z_axis);
+
+	LLQuaternion av_rot = camera_rot;
+	LLViewerCamera::getInstance()->setOriginAndLookAt(
+		target_pos + ((LLVector3(mCameraDistance, 0.f, 0.f) + offset) * av_rot),		// camera
+		LLVector3::z_axis,																	// up
+		target_pos);											// point of interest
+
+	
+	LLViewerCamera::getInstance()->setPerspective(FALSE, mOrigin.mX, mOrigin.mY, width, height, FALSE, z_near, z_far);
+
+	stop_glerror();
+
+	gPipeline.enableLightsAvatar();
+
+	gGL.pushMatrix();
+	const F32 BRIGHTNESS = 0.9f;
+	gGL.color3f(BRIGHTNESS, BRIGHTNESS, BRIGHTNESS);
+	
+	LLGLEnable normalize(GL_NORMALIZE);
+
+	if (!mBaseModel.empty() && mVertexBuffer[5].empty())
+	{
+		genBuffers(-1);
+		genBuffers(3);
+		//genLODs();
+	}
+
+	bool physics = (mPreviewLOD == LLModel::LOD_PHYSICS);
+
+	S32 physics_idx = -1;
+
+	bool render_mesh = true;
+	bool render_hull = false;
+
+	if (physics && mFMP->mDecompFloater)
+	{
+		physics_idx = mFMP->mDecompFloater->childGetValue("model").asInteger();
+		render_mesh = mFMP->mDecompFloater->childGetValue("render_mesh").asBoolean();
+		render_hull = mFMP->mDecompFloater->childGetValue("render_hull").asBoolean();
+	}
+
+	if (!mModel[mPreviewLOD].empty())
+	{
+		if (mVertexBuffer[mPreviewLOD].empty())
+		{
+			genBuffers(mPreviewLOD);
+		}
+
+		if (!avatar_preview)
+		{
+			for (LLModelLoader::scene::iterator iter = mScene[mPreviewLOD].begin(); iter != mScene[mPreviewLOD].end(); ++iter)
+			{
+				gGL.pushMatrix();
+				LLMatrix4 mat = iter->first;
+
+				glMultMatrixf((GLfloat*) mat.mMatrix);				
+				
+				for (LLModelLoader::model_instance_list::iterator model_iter = iter->second.begin(); model_iter != iter->second.end(); ++model_iter)
+				{
+					LLModelInstance& instance = *model_iter;
+					LLModel* model = instance.mModel;
+
+					if (instance.mTransform != mat)
+					{
+						llerrs << "WTF?" << llendl;
+					}
+
+					if (render_mesh)
+					{
+						for (U32 i = 0; i < mVertexBuffer[mPreviewLOD][model].size(); ++i)
+						{
+							LLVertexBuffer* buffer = mVertexBuffer[mPreviewLOD][model][i];
+
+							buffer->setBuffer(LLVertexBuffer::MAP_VERTEX | LLVertexBuffer::MAP_NORMAL | LLVertexBuffer::MAP_TEXCOORD0);
+							if (physics)
+							{
+								if (physics_idx > -1 && model == mModel[mPreviewLOD][physics_idx])
+								{
+									glColor4f(1,0,0,1);
+								}
+								else
+								{
+									glColor4f(0.75f, 0.75f, 0.75f, 1.f);
+								}
+							}
+							else
+							{
+								glColor4fv(instance.mMaterial[i].mDiffuseColor.mV);
+								if (i < instance.mMaterial.size() && instance.mMaterial[i].mDiffuseMap.notNull())
+								{
+									gGL.getTexUnit(0)->bind(instance.mMaterial[i].mDiffuseMap, true);
+									if (instance.mMaterial[i].mDiffuseMap->getDiscardLevel() > -1)
+									{
+										mTextureSet.insert(instance.mMaterial[i].mDiffuseMap);
+									}
+								}
+							}
+
+							buffer->drawRange(LLRender::TRIANGLES, 0, buffer->getNumVerts()-1, buffer->getNumIndices(), 0);
+							gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+							glColor3f(0.4f, 0.4f, 0.4f);
+
+							if (mFMP->childGetValue("show edges").asBoolean())
+							{
+								glLineWidth(3.f);
+								glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+								buffer->drawRange(LLRender::TRIANGLES, 0, buffer->getNumVerts()-1, buffer->getNumIndices(), 0);
+								glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+								glLineWidth(1.f);
+							}
+						}
+					}
+
+					if (render_hull)
+					{
+						LLPhysicsDecomp* decomp = gMeshRepo.mDecompThread;
+						if (decomp)
+						{
+							LLMutexLock(decomp->mMutex);
+												
+							std::map<LLModel*, std::vector<LLPointer<LLVertexBuffer> > >::iterator iter = 
+								mPhysicsMesh.find(model);
+							if (iter != mPhysicsMesh.end())
+							{
+								for (U32 i = 0; i < iter->second.size(); ++i)
+								{
+									if (explode > 0.f)
+									{
+										gGL.pushMatrix();
+
+										LLVector3 offset = model->mHullCenter[i]-model->mPhysicsCenter;
+										offset *= explode;
+
+										gGL.translatef(offset.mV[0], offset.mV[1], offset.mV[2]);
+									}
+
+									static std::vector<LLColor4U> hull_colors;
+
+									if (i+1 >= hull_colors.size())
+									{
+										hull_colors.push_back(LLColor4U(rand()%128+127, rand()%128+127, rand()%128+127, 255));
+									}
+
+									LLVertexBuffer* buff = iter->second[i];
+									if (buff)
+									{
+										buff->setBuffer(LLVertexBuffer::MAP_VERTEX | LLVertexBuffer::MAP_NORMAL);			
+
+										glColor4ubv(hull_colors[i].mV);
+										buff->drawArrays(LLRender::TRIANGLES, 0, buff->getNumVerts());
+									
+										if (mFMP->childGetValue("show edges").asBoolean())
+										{
+											glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+											glLineWidth(3.f);
+											glColor4ub(hull_colors[i].mV[0]/2, hull_colors[i].mV[1]/2, hull_colors[i].mV[2]/2, 255);
+											buff->drawArrays(LLRender::TRIANGLES, 0, buff->getNumVerts());
+											glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+											glLineWidth(1.f);
+										}	
+									}
+
+									if (explode > 0.f)
+									{
+										gGL.popMatrix();
+									}
+								}
+							}
+						}	
+
+						//mFMP->childSetTextArg(info_name[LLModel::LOD_PHYSICS], "[HULLS]", llformat("%d",decomp->mHulls.size()));
+						//mFMP->childSetTextArg(info_name[LLModel::LOD_PHYSICS], "[POINTS]", llformat("%d",decomp->mTotalPoints));				
+					}
+				}
+
+				gGL.popMatrix();
+			}
+
+			if (physics)
+			{
+				mPreviewLOD = LLModel::LOD_PHYSICS;
+			}
+		}
+		else
+		{
+			LLVOAvatarSelf* avatar = gAgentAvatarp;
+			target_pos = avatar->getPositionAgent();
+
+			LLViewerCamera::getInstance()->setOriginAndLookAt(
+				target_pos + ((LLVector3(mCameraDistance, 0.f, 0.f) + offset) * av_rot),		// camera
+				LLVector3::z_axis,																	// up
+				target_pos);											// point of interest
+
+			avatar->renderCollisionVolumes();
+
+			for (LLModelLoader::scene::iterator iter = mScene[mPreviewLOD].begin(); iter != mScene[mPreviewLOD].end(); ++iter)
+			{
+				for (LLModelLoader::model_instance_list::iterator model_iter = iter->second.begin(); model_iter != iter->second.end(); ++model_iter)
+				{
+					LLModelInstance& instance = *model_iter;
+					LLModel* model = instance.mModel;
+
+					if (!model->mSkinWeights.empty())
+					{
+						for (U32 i = 0; i < mVertexBuffer[mPreviewLOD][model].size(); ++i)
+						{
+							LLVertexBuffer* buffer = mVertexBuffer[mPreviewLOD][model][i];
+
+							const LLVolumeFace& face = model->getVolumeFace(i);
+
+							LLStrider<LLVector3> position;
+							buffer->getVertexStrider(position);
+							
+							LLStrider<LLVector4> weight;
+							buffer->getWeight4Strider(weight);
+							
+							//quick 'n dirty software vertex skinning
+
+							//build matrix palette
+							LLMatrix4 mat[64];
+							for (U32 j = 0; j < model->mJointList.size(); ++j)
+							{
+								LLJoint* joint = avatar->getJoint(model->mJointList[j]);
+								if (joint)
+								{
+									mat[j] = model->mInvBindMatrix[j];
+									mat[j] *= joint->getWorldMatrix();
+								}
+							}
+
+							for (U32 j = 0; j < buffer->getRequestedVerts(); ++j)
+							{
+								LLMatrix4 final_mat;
+								final_mat.mMatrix[0][0] = final_mat.mMatrix[1][1] = final_mat.mMatrix[2][2] = final_mat.mMatrix[3][3] = 0.f;
+
+								LLVector4 wght;
+								S32 idx[4];
+
+								F32 scale = 0.f;
+								for (U32 k = 0; k < 4; k++)
+								{
+									F32 w = weight[j].mV[k];
+
+									idx[k] = (S32) floorf(w);
+									wght.mV[k] = w - floorf(w);
+									scale += wght.mV[k];
+								}
+
+								wght *= 1.f/scale;						
+
+								for (U32 k = 0; k < 4; k++)
+								{
+									F32* src = (F32*) mat[idx[k]].mMatrix;
+									F32* dst = (F32*) final_mat.mMatrix;
+
+									F32 w = wght.mV[k];
+
+									for (U32 l = 0; l < 16; l++)
+									{
+										dst[l] += src[l]*w;
+									}
+								}
+
+								//VECTORIZE THIS
+								LLVector3 v(face.mPositions[j].getF32ptr());
+								
+								v = v * model->mBindShapeMatrix;
+								v = v * final_mat;
+
+								position[j] = v;
+							}
+
+							buffer->setBuffer(LLVertexBuffer::MAP_VERTEX | LLVertexBuffer::MAP_NORMAL | LLVertexBuffer::MAP_TEXCOORD0);
+							glColor4fv(instance.mMaterial[i].mDiffuseColor.mV);
+							gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+							buffer->draw(LLRender::TRIANGLES, buffer->getNumIndices(), 0);
+							glColor3f(0.4f, 0.4f, 0.4f);
+
+							if (mFMP->childGetValue("show edges").asBoolean())
+							{
+								glLineWidth(3.f);
+								glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+								buffer->draw(LLRender::TRIANGLES, buffer->getNumIndices(), 0);
+								glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+								glLineWidth(1.f);
+							}
+						}
+					}
+				}
+			}
+		}
+	}
+
+	gGL.popMatrix();
+		
+	return TRUE;
+}
+
+//-----------------------------------------------------------------------------
+// refresh()
+//-----------------------------------------------------------------------------
+void LLModelPreview::refresh()
+{ 
+	mNeedsUpdate = TRUE; 
+}
+
+//-----------------------------------------------------------------------------
+// rotate()
+//-----------------------------------------------------------------------------
+void LLModelPreview::rotate(F32 yaw_radians, F32 pitch_radians)
+{
+	mCameraYaw = mCameraYaw + yaw_radians;
+
+	mCameraPitch = llclamp(mCameraPitch + pitch_radians, F_PI_BY_TWO * -0.8f, F_PI_BY_TWO * 0.8f);
+}
+
+//-----------------------------------------------------------------------------
+// zoom()
+//-----------------------------------------------------------------------------
+void LLModelPreview::zoom(F32 zoom_amt)
+{
+	F32 new_zoom = mCameraZoom+zoom_amt;
+		
+	mCameraZoom	= llclamp(new_zoom, 1.f, 10.f);
+}
+
+void LLModelPreview::pan(F32 right, F32 up)
+{
+	mCameraOffset.mV[VY] = llclamp(mCameraOffset.mV[VY] + right * mCameraDistance / mCameraZoom, -1.f, 1.f);
+	mCameraOffset.mV[VZ] = llclamp(mCameraOffset.mV[VZ] + up * mCameraDistance / mCameraZoom, -1.f, 1.f);
+}
+
+void LLModelPreview::setPreviewLOD(S32 lod)
+{
+	mPreviewLOD = llclamp(lod, 0, 4);
+	refresh();
+}
+
+//static 
+void LLFloaterModelPreview::onBrowseHighLOD(void* data)
+{
+	LLFloaterModelPreview* mp = (LLFloaterModelPreview*) data;
+	mp->loadModel(3);
+}
+
+//static 
+void LLFloaterModelPreview::onBrowseMediumLOD(void* data)
+{
+	LLFloaterModelPreview* mp = (LLFloaterModelPreview*) data;
+	mp->loadModel(2);
+}
+
+//static 
+void LLFloaterModelPreview::onBrowseLowLOD(void* data)
+{
+	LLFloaterModelPreview* mp = (LLFloaterModelPreview*) data;
+	mp->loadModel(1);
+}
+
+//static 
+void LLFloaterModelPreview::onBrowseLowestLOD(void* data)
+{
+	LLFloaterModelPreview* mp = (LLFloaterModelPreview*) data;
+	mp->loadModel(0);
+}
+
+//static
+void LLFloaterModelPreview::onUpload(void* user_data)
+{
+	LLFloaterModelPreview* mp = (LLFloaterModelPreview*) user_data;
+
+	if (mp->mDecompFloater)
+	{
+		mp->mDecompFloater->closeFloater();
+	}
+
+	mp->mModelPreview->rebuildUploadData();
+		
+	gMeshRepo.uploadModel(mp->mModelPreview->mUploadData, mp->mModelPreview->mPreviewScale, mp->childGetValue("upload_textures").asBoolean());
+
+	mp->closeFloater(false);
+}
+
+//static 
+void LLFloaterModelPreview::onConsolidate(void* user_data)
+{
+	LLFloaterModelPreview* mp = (LLFloaterModelPreview*) user_data;
+	mp->mModelPreview->consolidate();
+}
+
+//static 
+void LLFloaterModelPreview::onScrubMaterials(void* user_data)
+{
+	LLFloaterModelPreview* mp = (LLFloaterModelPreview*) user_data;
+	mp->mModelPreview->scrubMaterials();
+}
+
+//static 
+void LLFloaterModelPreview::onDecompose(void* user_data)
+{
+	LLFloaterModelPreview* mp = (LLFloaterModelPreview*) user_data;
+	mp->showDecompFloater();
+}
+
+//static
+void LLFloaterModelPreview::onModelDecompositionComplete(LLModel* model, std::vector<LLPointer<LLVertexBuffer> >& physics_mesh)
+{
+	if (sInstance && sInstance->mModelPreview)
+	{
+		sInstance->mModelPreview->mPhysicsMesh[model] = physics_mesh;
+
+		sInstance->mModelPreview->mResourceCost = sInstance->mModelPreview->calcResourceCost();
+	}
+}
+
+
+//static 
+void LLFloaterModelPreview::refresh(LLUICtrl* ctrl, void* user_data)
+{
+	LLFloaterModelPreview* mp = (LLFloaterModelPreview*) user_data;
+	mp->mModelPreview->refresh();
+}
+
+void LLFloaterModelPreview::updateResourceCost()
+{
+	U32 cost = mModelPreview->mResourceCost;
+	childSetLabelArg("ok_btn", "[AMOUNT]", llformat("%d",cost));
+}
+
+//static
+void LLModelPreview::textureLoadedCallback( BOOL success, LLViewerFetchedTexture *src_vi, LLImageRaw* src, LLImageRaw* src_aux, S32 discard_level, BOOL final, void* userdata )
+{
+	LLModelPreview* preview = (LLModelPreview*) userdata;
+	preview->refresh();
+}
+
+#endif
+
diff --git a/indra/newview/llfloatermodelpreview.h b/indra/newview/llfloatermodelpreview.h
new file mode 100644
index 0000000000..1f9de2e2b9
--- /dev/null
+++ b/indra/newview/llfloatermodelpreview.h
@@ -0,0 +1,275 @@
+/**
+ * @file llfloatermodelpreview.h
+ * @brief LLFloaterModelPreview class definition
+ *
+ * $LicenseInfo:firstyear=2004&license=viewergpl$
+ * 
+ * Copyright (c) 2004-2007, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLFLOATERMODELPREVIEW_H
+#define LL_LLFLOATERMODELPREVIEW_H
+
+#include "llfloaternamedesc.h"
+
+#include "lldynamictexture.h"
+#include "llquaternion.h"
+#include "llmeshrepository.h"
+#include "llmodel.h"
+#include "llthread.h"
+
+#if LL_MESH_ENABLED
+class LLComboBox;
+class LLJoint;
+class LLViewerJointMesh;
+class LLVOAvatar;
+class LLTextBox;
+class LLVertexBuffer;
+class LLModelPreview;
+class LLFloaterModelPreview;
+class daeElement;
+class domProfile_COMMON;
+class domInstance_geometry;
+
+class LLPhysicsDecompFloater : public LLFloater
+{
+public:
+
+	LLPhysicsDecompFloater(LLSD& key);
+	~LLPhysicsDecompFloater();
+};
+
+class LLModelLoader : public LLThread
+{
+public:
+	typedef enum
+	{
+		STARTING = 0,
+		READING_FILE,
+		CREATING_FACES,
+		GENERATING_VERTEX_BUFFERS,
+		GENERATING_LOD,
+		DONE,
+	} eLoadState;
+
+	U32 mState;
+	std::string mFilename;
+	S32 mLod;
+	LLModelPreview* mPreview;
+	LLMatrix4 mTransform;
+	BOOL mFirstTransform;
+	LLVector3 mExtents[2];
+
+	std::map<daeElement*, LLPointer<LLModel> > mModel;
+	
+	typedef std::vector<LLPointer<LLModel> > model_list;
+	model_list mModelList;
+
+	typedef std::vector<LLModelInstance> model_instance_list;
+	
+	typedef std::map<LLMatrix4, model_instance_list > scene;
+
+	scene mScene;
+
+	LLModelLoader(std::string filename, S32 lod, LLModelPreview* preview);
+
+	virtual void run();
+	
+	void processElement(daeElement* element);
+	std::vector<LLImportMaterial> getMaterials(LLModel* model, domInstance_geometry* instance_geo);
+	LLImportMaterial profileToMaterial(domProfile_COMMON* material);
+	std::string getElementLabel(daeElement *element);
+	LLColor4 getDaeColor(daeElement* element);
+
+	//map of avatar joints as named in COLLADA assets to internal joint names
+	std::map<std::string, std::string> mJointMap;
+};
+
+class LLModelPreview : public LLViewerDynamicTexture, public LLMutex
+{
+ public:
+	
+	 LLModelPreview(S32 width, S32 height, LLFloaterModelPreview* fmp);
+	virtual ~LLModelPreview();
+
+	void setPreviewTarget(F32 distance);
+	void setTexture(U32 name) { mTextureName = name; }
+
+	BOOL render();
+	void genBuffers(S32 lod);
+	void refresh();
+	void rotate(F32 yaw_radians, F32 pitch_radians);
+	void zoom(F32 zoom_amt);
+	void pan(F32 right, F32 up);
+	virtual BOOL needsRender() { return mNeedsUpdate; }
+	void setPreviewLOD(S32 lod);
+	void loadModel(std::string filename, S32 lod);
+	void loadModelCallback(S32 lod);
+	void genLODs(S32 which_lod = -1);
+	void smoothNormals();
+	void consolidate();
+	void scrubMaterials();
+	U32 calcResourceCost();
+	void rebuildUploadData();
+	void clearIncompatible(S32 lod);
+	void updateStatusMessages();
+
+	static void	textureLoadedCallback( BOOL success, LLViewerFetchedTexture *src_vi, LLImageRaw* src, LLImageRaw* src_aux, S32 discard_level, BOOL final, void* userdata );
+
+ protected:
+	friend class LLFloaterModelPreview;
+	friend class LLPhysicsDecomp;
+
+	LLFloaterModelPreview* mFMP;
+
+	BOOL        mNeedsUpdate;
+	U32         mTextureName;
+	F32			mCameraDistance;
+	F32			mCameraYaw;
+	F32			mCameraPitch;
+	F32			mCameraZoom;
+	LLVector3	mCameraOffset;
+	LLVector3	mPreviewTarget;
+	LLVector3	mPreviewScale;
+	S32			mPreviewLOD;
+	U32			mResourceCost;
+	S32			mLODMode[LLModel::NUM_LODS];
+	S32			mLimit[LLModel::NUM_LODS];
+	
+	LLModelLoader* mModelLoader;
+
+
+	LLModelLoader::scene mScene[LLModel::NUM_LODS];
+	LLModelLoader::scene mBaseScene;
+
+	LLModelLoader::model_list mModel[LLModel::NUM_LODS];
+	LLModelLoader::model_list mBaseModel;
+
+	std::map<LLModel*, U32> mGroup;
+	std::map<LLModel*, U32> mObject;
+	std::map<LLModel*, std::vector<U32> > mPatch;
+
+	std::map<LLModel*, F32> mPercentage;
+	std::map<LLModel*, std::vector<LLPointer<LLVertexBuffer> > > mPhysicsMesh;
+
+	LLMeshUploadThread::instance_list mUploadData;
+	std::set<LLPointer<LLViewerFetchedTexture> > mTextureSet;
+
+	//map of vertex buffers to models (one vertex buffer in vector per face in model
+	std::map<LLModel*, std::vector<LLPointer<LLVertexBuffer> > > mVertexBuffer[6];
+};
+
+class LLFloaterModelPreview : public LLFloater
+{
+public:
+	static LLFloaterModelPreview* sInstance;
+
+	LLFloaterModelPreview(const LLSD& key);
+	virtual ~LLFloaterModelPreview();
+
+	virtual BOOL postBuild();
+	
+	BOOL handleMouseDown(S32 x, S32 y, MASK mask);
+	BOOL handleMouseUp(S32 x, S32 y, MASK mask);
+	BOOL handleHover(S32 x, S32 y, MASK mask);
+	BOOL handleScrollWheel(S32 x, S32 y, S32 clicks); 
+
+	static void onMouseCaptureLostModelPreview(LLMouseHandler*);
+	static void setUploadAmount(S32 amount) { sUploadAmount = amount; }
+
+	static void onBrowseHighLOD(void* data);
+	static void onBrowseMediumLOD(void* data); 
+	static void onBrowseLowLOD(void* data);
+	static void onBrowseLowestLOD(void* data);
+
+	static void onUpload(void* data);
+
+	static void onConsolidate(void* data);
+	static void onScrubMaterials(void* data);
+	static void onDecompose(void* data);
+	static void onModelDecompositionComplete(LLModel* model, std::vector<LLPointer<LLVertexBuffer> >& physics_mesh);
+
+	static void refresh(LLUICtrl* ctrl, void* data);
+
+	void updateResourceCost();
+
+	void			loadModel(S32 lod);
+
+protected:
+	friend class LLModelPreview;
+	friend class LLMeshFilePicker;
+	friend class LLPhysicsDecomp;
+	friend class LLPhysicsDecompFloater;
+	
+	static void		onPreviewLODCommit(LLUICtrl*,void*);
+	
+	static void		onHighLODCommit(LLUICtrl*,void*);
+	static void		onMediumLODCommit(LLUICtrl*,void*);
+	static void		onLowLODCommit(LLUICtrl*,void*);
+	static void		onLowestLODCommit(LLUICtrl*,void*);
+	static void		onPhysicsLODCommit(LLUICtrl*,void*);
+
+	static void		onHighLimitCommit(LLUICtrl*,void*);
+	static void		onMediumLimitCommit(LLUICtrl*,void*);
+	static void		onLowLimitCommit(LLUICtrl*,void*);
+	static void		onLowestLimitCommit(LLUICtrl*,void*);
+	static void		onPhysicsLimitCommit(LLUICtrl*,void*);
+	
+	static void		onSmoothNormalsCommit(LLUICtrl*,void*);
+
+	static void		onAutoFillCommit(LLUICtrl*,void*);
+	static void		onShowEdgesCommit(LLUICtrl*,void*);
+
+	static void		onExplodeCommit(LLUICtrl*, void*);
+
+	static void onPhysicsParamCommit(LLUICtrl* ctrl, void* userdata);
+	static void onPhysicsStageExecute(LLUICtrl* ctrl, void* userdata);
+	static void onPhysicsStageCancel(LLUICtrl* ctrl, void* userdata);
+	static void onClosePhysicsFloater(LLUICtrl* ctrl, void* userdata);
+
+	void			draw();
+	static void		setLODMode(S32 lod, void* userdata);
+	void			setLODMode(S32 lod, S32 which_mode);
+
+	static void		setLimit(S32 lod, void* userdata);
+	void			setLimit(S32 lod, S32 limit);
+
+	void showDecompFloater();
+	
+	LLModelPreview*	mModelPreview;
+
+	LLFloater* mDecompFloater;
+	
+	S32				mLastMouseX;
+	S32				mLastMouseY;
+	LLRect			mPreviewRect;
+	U32				mGLName;
+	BOOL			mLoading;
+	static S32		sUploadAmount;
+};
+
+#endif
+
+#endif  // LL_LLFLOATERMODELPREVIEW_H
diff --git a/indra/newview/llmeshreduction.cpp b/indra/newview/llmeshreduction.cpp
new file mode 100644
index 0000000000..e785784a32
--- /dev/null
+++ b/indra/newview/llmeshreduction.cpp
@@ -0,0 +1,291 @@
+/** 
+ * @file llmeshreduction.cpp
+ * @brief LLMeshReduction class implementation
+ *
+ * $LicenseInfo:firstyear=2004&license=viewergpl$
+ * 
+ * Copyright (c) 2004-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "llviewerprecompiledheaders.h"
+
+#include "llmeshreduction.h"
+#include "llgl.h"
+#include "llvertexbuffer.h"
+
+#include "glod/glod.h"
+
+#if LL_MESH_ENABLED
+
+static BOOL stop_gloderror()
+{
+	GLuint error = glodGetError();
+
+	if (error != GLOD_NO_ERROR)
+	{
+		llwarns << "GLOD error detected: " << std::hex << error << llendl;
+		return TRUE;
+	}
+
+	return FALSE;
+}
+
+
+void create_vertex_buffers_from_model(LLModel* model, std::vector<LLPointer <LLVertexBuffer> >& vertex_buffers)
+{
+#if 0 //VECTORIZE THIS ?
+	vertex_buffers.clear();
+	
+	for (S32 i = 0; i < model->getNumVolumeFaces(); ++i)
+	{
+		const LLVolumeFace &vf = model->getVolumeFace(i);
+		U32 num_vertices = vf.mNumVertices;
+		U32 num_indices = vf.mNumIndices;
+
+		if (!num_vertices || ! num_indices)
+		{
+			continue;
+		}
+
+		LLVertexBuffer* vb =
+			new LLVertexBuffer(LLVertexBuffer::MAP_VERTEX | LLVertexBuffer::MAP_NORMAL | LLVertexBuffer::MAP_TEXCOORD0, 0);
+		
+		vb->allocateBuffer(num_vertices, num_indices, TRUE);
+
+		LLStrider<LLVector3> vertex_strider;
+		LLStrider<LLVector3> normal_strider;
+		LLStrider<LLVector2> tc_strider;
+		LLStrider<U16> index_strider;
+
+		vb->getVertexStrider(vertex_strider);
+		vb->getNormalStrider(normal_strider);
+		vb->getTexCoord0Strider(tc_strider);
+
+		vb->getIndexStrider(index_strider);
+
+		// build vertices and normals
+		for (U32 i = 0; (S32)i < num_vertices; i++)
+		{
+			*(vertex_strider++) = vf.mVertices[i].mPosition;
+			*(tc_strider++) = vf.mVertices[i].mTexCoord;
+			LLVector3 normal = vf.mVertices[i].mNormal;
+			normal.normalize();
+			*(normal_strider++) = normal;
+		}
+
+		// build indices
+		for (U32 i = 0; i < num_indices; i++)
+		{
+			*(index_strider++) = vf.mIndices[i];
+		}
+
+
+		vertex_buffers.push_back(vb);
+	}
+#endif
+}
+
+void create_glod_object_from_vertex_buffers(S32 object, S32 group, std::vector<LLPointer <LLVertexBuffer> >& vertex_buffers)
+{
+	glodNewGroup(group);
+	stop_gloderror();
+	glodNewObject(object, group, GLOD_DISCRETE);
+	stop_gloderror();
+
+	for (U32 i = 0; i < vertex_buffers.size(); ++i)
+	{
+		vertex_buffers[i]->setBuffer(LLVertexBuffer::MAP_VERTEX | LLVertexBuffer::MAP_NORMAL | LLVertexBuffer::MAP_TEXCOORD0);
+		
+		U32 num_indices = vertex_buffers[i]->getNumIndices();
+		
+		if (num_indices > 2)
+		{
+			glodInsertElements(object, i, GL_TRIANGLES, num_indices, GL_UNSIGNED_SHORT,
+							   vertex_buffers[i]->getIndicesPointer(), 0, 0.f);
+		}
+		stop_gloderror();
+	}
+	
+	glodBuildObject(object);
+	stop_gloderror();
+}
+
+// extract the GLOD data into vertex buffers
+void create_vertex_buffers_from_glod_object(S32 object, S32 group, std::vector<LLPointer <LLVertexBuffer> >& vertex_buffers)
+{
+	vertex_buffers.clear();
+	
+	GLint patch_count = 0;
+	glodGetObjectParameteriv(object, GLOD_NUM_PATCHES, &patch_count);
+	stop_gloderror();
+
+	GLint* sizes = new GLint[patch_count*2];
+	glodGetObjectParameteriv(object, GLOD_PATCH_SIZES, sizes);
+	stop_gloderror();
+
+	GLint* names = new GLint[patch_count];
+	glodGetObjectParameteriv(object, GLOD_PATCH_NAMES, names);
+	stop_gloderror();
+
+	for (S32 i = 0; i < patch_count; i++)
+	{
+		LLPointer<LLVertexBuffer> buff =
+			new LLVertexBuffer(LLVertexBuffer::MAP_VERTEX | LLVertexBuffer::MAP_NORMAL | LLVertexBuffer::MAP_TEXCOORD0, 0);
+			
+		if (sizes[i*2+1] > 0 && sizes[i*2] > 0)
+		{
+			buff->allocateBuffer(sizes[i*2+1], sizes[i*2], true);
+			buff->setBuffer(LLVertexBuffer::MAP_VERTEX | LLVertexBuffer::MAP_NORMAL | LLVertexBuffer::MAP_TEXCOORD0);
+			glodFillElements(object, names[i], GL_UNSIGNED_SHORT, buff->getIndicesPointer());
+			stop_gloderror();
+		}
+		else
+		{
+            // this face was eliminated, create a dummy triangle (one vertex, 3 indices, all 0)
+			buff->allocateBuffer(1, 3, true);
+		}
+
+		vertex_buffers.push_back(buff);
+	}
+	
+	glodDeleteObject(object);
+	stop_gloderror();
+	glodDeleteGroup(group);
+	stop_gloderror();
+	
+	delete [] sizes;
+	delete [] names;
+}
+
+
+LLPointer<LLModel> create_model_from_vertex_buffers(std::vector<LLPointer <LLVertexBuffer> >& vertex_buffers)
+{
+	// extract the newly reduced mesh
+
+	// create our output model
+	LLVolumeParams volume_params;
+	volume_params.setType(LL_PCODE_PROFILE_SQUARE, LL_PCODE_PATH_LINE);
+	LLPointer<LLModel> out_model = new LLModel(volume_params, 0.f);
+
+	out_model->setNumVolumeFaces(vertex_buffers.size());
+
+	// build new faces from each vertex buffer
+	for (GLint i = 0; i < vertex_buffers.size(); ++i)
+	{
+		LLStrider<LLVector3> pos;
+		LLStrider<LLVector3> norm;
+		LLStrider<LLVector2> tc;
+		LLStrider<U16> index;
+
+		vertex_buffers[i]->getVertexStrider(pos);
+		vertex_buffers[i]->getNormalStrider(norm);
+		vertex_buffers[i]->getTexCoord0Strider(tc);
+		vertex_buffers[i]->getIndexStrider(index);
+
+		out_model->setVolumeFaceData(i, pos, norm, tc, index,
+									 vertex_buffers[i]->getNumVerts(), vertex_buffers[i]->getNumIndices());
+	}
+	
+	return out_model;
+}
+
+
+
+LLMeshReduction::LLMeshReduction()
+{
+	mCounter = 1;
+
+	glodInit();
+}
+
+LLMeshReduction::~LLMeshReduction()
+{
+	glodShutdown();
+}
+
+
+LLPointer<LLModel> LLMeshReduction::reduce(LLModel* in_model, F32 limit, S32 mode)
+{
+	LLVertexBuffer::unbind();
+
+	// create vertex buffers from model
+	std::vector<LLPointer<LLVertexBuffer> > in_vertex_buffers;
+	create_vertex_buffers_from_model(in_model, in_vertex_buffers);
+
+	// create glod object from vertex buffers
+	stop_gloderror();
+	S32 glod_group = mCounter++;
+	S32 glod_object = mCounter++;
+	create_glod_object_from_vertex_buffers(glod_object, glod_group, in_vertex_buffers);
+
+	
+	// set reduction parameters
+	stop_gloderror();
+
+	if (mode == TRIANGLE_BUDGET)
+	{
+		// triangle budget mode
+		glodGroupParameteri(glod_group, GLOD_ADAPT_MODE, GLOD_TRIANGLE_BUDGET);
+		stop_gloderror();		
+		glodGroupParameteri(glod_group, GLOD_ERROR_MODE, GLOD_OBJECT_SPACE_ERROR);
+		stop_gloderror();		
+		S32 triangle_count = (S32)limit;
+		glodGroupParameteri(glod_group, GLOD_MAX_TRIANGLES, triangle_count);
+		stop_gloderror();		
+	}
+	else if (mode == ERROR_THRESHOLD)
+	{ 
+		// error threshold mode
+		glodGroupParameteri(glod_group, GLOD_ADAPT_MODE, GLOD_ERROR_THRESHOLD);
+		glodGroupParameteri(glod_group, GLOD_ERROR_MODE, GLOD_OBJECT_SPACE_ERROR);
+		F32 error_threshold = limit;
+		glodGroupParameterf(glod_group, GLOD_OBJECT_SPACE_ERROR_THRESHOLD, error_threshold);
+		stop_gloderror();
+	}
+	
+	else
+	{
+		// not a legal mode
+		return NULL;
+	}
+
+
+	// do the reduction
+	glodAdaptGroup(glod_group);
+	stop_gloderror();
+
+	// convert glod object into vertex buffers
+	std::vector<LLPointer<LLVertexBuffer> > out_vertex_buffers;
+	create_vertex_buffers_from_glod_object(glod_object, glod_group, out_vertex_buffers);
+
+	// convert vertex buffers into a model
+	LLPointer<LLModel> out_model = create_model_from_vertex_buffers(out_vertex_buffers);
+
+	
+	return out_model;
+}
+
+#endif
+
diff --git a/indra/newview/llmeshreduction.h b/indra/newview/llmeshreduction.h
new file mode 100644
index 0000000000..d86696978d
--- /dev/null
+++ b/indra/newview/llmeshreduction.h
@@ -0,0 +1,59 @@
+/** 
+ * @file llmeshreduction.h
+ * @brief LLMeshReduction class definition
+ *
+ * $LicenseInfo:firstyear=2004&license=viewergpl$
+ * 
+ * Copyright (c) 2004-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLMESHREDUCTION_H
+#define LL_LLMESHREDUCTION_H
+
+#include "llmodel.h"
+
+#if LL_MESH_ENABLED
+
+class LLMeshReduction
+{
+ public:
+	enum EReductionMode
+	{
+		TRIANGLE_BUDGET,
+		ERROR_THRESHOLD
+	};
+	
+	LLMeshReduction();
+	~LLMeshReduction();
+
+	LLPointer<LLModel> reduce(LLModel* in_model, F32 limit, S32 mode);
+	
+private:
+	U32 mCounter;
+};
+
+#endif
+
+#endif  // LL_LLMESHREDUCTION_H
diff --git a/indra/newview/llmeshrepository.cpp b/indra/newview/llmeshrepository.cpp
new file mode 100644
index 0000000000..96a170ef07
--- /dev/null
+++ b/indra/newview/llmeshrepository.cpp
@@ -0,0 +1,2676 @@
+/** 
+ * @file llmeshrepository.cpp
+ * @brief Mesh repository implementation.
+ *
+ * $LicenseInfo:firstyear=2005&license=viewergpl$
+ * 
+ * Copyright (c) 2005-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "llviewerprecompiledheaders.h"
+
+#include "apr_pools.h"
+#include "apr_dso.h"
+
+#include "llmeshrepository.h"
+
+#include "llagent.h"
+#include "llappviewer.h"
+#include "llbufferstream.h"
+#include "llcurl.h"
+#include "llfasttimer.h"
+#include "llfloatermodelpreview.h"
+#include "llfloaterperms.h"
+#include "lleconomy.h"
+#include "llimagej2c.h"
+#include "llhost.h"
+#include "llnotificationsutil.h"
+#include "llsd.h"
+#include "llsdutil_math.h"
+#include "llsdserialize.h"
+#include "llthread.h"
+#include "llvfile.h"
+#include "llviewercontrol.h"
+#include "llviewermenufile.h"
+#include "llviewerobjectlist.h"
+#include "llviewerregion.h"
+#include "llviewertexturelist.h"
+#include "llvolume.h"
+#include "llvolumemgr.h"
+#include "llvovolume.h"
+#include "llworld.h"
+#include "material_codes.h"
+#include "pipeline.h"
+
+
+#include <queue>
+
+#if LL_MESH_ENABLED
+
+LLFastTimer::DeclareTimer FTM_MESH_UPDATE("Mesh Update");
+LLFastTimer::DeclareTimer FTM_LOAD_MESH("Load Mesh");
+
+LLMeshRepository gMeshRepo;
+
+const U32 MAX_MESH_REQUESTS_PER_SECOND = 100;
+
+U32 LLMeshRepository::sBytesReceived = 0;
+U32 LLMeshRepository::sHTTPRequestCount = 0;
+U32 LLMeshRepository::sHTTPRetryCount = 0;
+U32 LLMeshRepository::sCacheBytesRead = 0;
+U32 LLMeshRepository::sCacheBytesWritten = 0;
+U32 LLMeshRepository::sPeakKbps = 0;
+	
+
+std::string header_lod[] = 
+{
+	"lowest_lod",
+	"low_lod",
+	"medium_lod",
+	"high_lod"
+};
+
+
+//get the number of bytes resident in memory for given volume
+U32 get_volume_memory_size(const LLVolume* volume)
+{
+	U32 indices = 0;
+	U32 vertices = 0;
+
+	for (U32 i = 0; i < volume->getNumVolumeFaces(); ++i)
+	{
+		const LLVolumeFace& face = volume->getVolumeFace(i);
+		indices += face.mNumIndices;
+		vertices += face.mNumVertices;
+	}
+
+
+	return indices*2+vertices*11+sizeof(LLVolume)+sizeof(LLVolumeFace)*volume->getNumVolumeFaces();
+}
+
+std::string scrub_host_name(std::string http_url, const LLHost& host)
+{ //curl loves to abuse the DNS cache, so scrub host names out of urls where trivial to prevent DNS timeouts
+	std::string ip_string = host.getIPString();
+	std::string host_string = host.getHostName();
+
+	std::string::size_type idx = http_url.find(host_string);
+
+	if (!ip_string.empty() && !host_string.empty() && idx != std::string::npos)
+	{
+		http_url.replace(idx, host_string.length(), ip_string);
+	}
+
+	return http_url;
+}
+
+LLVertexBuffer* get_vertex_buffer_from_mesh(LLCDMeshData& mesh, F32 scale = 1.f)
+{
+	LLVertexBuffer* buff = new LLVertexBuffer(LLVertexBuffer::MAP_VERTEX | LLVertexBuffer::MAP_NORMAL, 0);
+	buff->allocateBuffer(mesh.mNumTriangles*3, 0, true);
+
+	LLStrider<LLVector3> pos;
+	LLStrider<LLVector3> norm;
+
+	buff->getVertexStrider(pos);
+	buff->getNormalStrider(norm);
+
+	const F32* v = mesh.mVertexBase;
+	
+	if (mesh.mIndexType == LLCDMeshData::INT_16)
+	{
+		U16* idx = (U16*) mesh.mIndexBase;
+		for (S32 j = 0; j < mesh.mNumTriangles; ++j)
+		{ 
+			F32* mp0 = (F32*) ((U8*)v+idx[0]*mesh.mVertexStrideBytes);
+			F32* mp1 = (F32*) ((U8*)v+idx[1]*mesh.mVertexStrideBytes);
+			F32* mp2 = (F32*) ((U8*)v+idx[2]*mesh.mVertexStrideBytes);
+
+			idx = (U16*) (((U8*)idx)+mesh.mIndexStrideBytes);
+			
+			LLVector3 v0(mp0);
+			LLVector3 v1(mp1);
+			LLVector3 v2(mp2);
+
+			LLVector3 n = (v1-v0)%(v2-v0);
+			n.normalize();
+
+			*pos++ = v0*scale;
+			*pos++ = v1*scale;
+			*pos++ = v2*scale;
+
+			*norm++ = n;
+			*norm++ = n;
+			*norm++ = n;			
+		}
+	}
+	else
+	{
+		U32* idx = (U32*) mesh.mIndexBase;
+		for (S32 j = 0; j < mesh.mNumTriangles; ++j)
+		{ 
+			F32* mp0 = (F32*) ((U8*)v+idx[0]*mesh.mVertexStrideBytes);
+			F32* mp1 = (F32*) ((U8*)v+idx[1]*mesh.mVertexStrideBytes);
+			F32* mp2 = (F32*) ((U8*)v+idx[2]*mesh.mVertexStrideBytes);
+
+			idx = (U32*) (((U8*)idx)+mesh.mIndexStrideBytes);
+			
+			LLVector3 v0(mp0);
+			LLVector3 v1(mp1);
+			LLVector3 v2(mp2);
+
+			LLVector3 n = (v1-v0)%(v2-v0);
+			n.normalize();
+
+			*(pos++) = v0*scale;
+			*(pos++) = v1*scale;
+			*(pos++) = v2*scale;
+
+			*(norm++) = n;
+			*(norm++) = n;
+			*(norm++) = n;			
+		}
+	}
+
+	return buff;
+}
+
+S32 LLMeshRepoThread::sActiveHeaderRequests = 0;
+S32 LLMeshRepoThread::sActiveLODRequests = 0;
+U32	LLMeshRepoThread::sMaxConcurrentRequests = 1;
+
+
+class LLTextureCostResponder : public LLCurl::Responder
+{
+public:
+	LLTextureUploadData mData;
+	LLMeshUploadThread* mThread;
+
+	LLTextureCostResponder(LLTextureUploadData data, LLMeshUploadThread* thread) 
+		: mData(data), mThread(thread)
+	{
+
+	}
+
+	virtual void completed(U32 status, const std::string& reason, const LLSD& content)
+	{
+		mThread->mPendingConfirmations--;
+		if (isGoodStatus(status))
+		{
+			mThread->priceResult(mData, content);	
+		}
+		else
+		{
+			llwarns << status << ": " << reason << llendl;
+			llwarns << "Retrying. (" << ++mData.mRetries << ")" << llendl;
+			
+			if (status == 499)
+			{
+				mThread->uploadTexture(mData);
+			}
+			else
+			{
+				llerrs << "Unhandled status " << status << llendl;
+			}
+		}
+	}
+};
+
+class LLTextureUploadResponder : public LLCurl::Responder
+{
+public:
+	LLTextureUploadData mData;
+	LLMeshUploadThread* mThread;
+
+	LLTextureUploadResponder(LLTextureUploadData data, LLMeshUploadThread* thread)
+		: mData(data), mThread(thread)
+	{
+	}
+
+	virtual void completed(U32 status, const std::string& reason, const LLSD& content)
+	{
+		mThread->mPendingUploads--;
+		if (isGoodStatus(status))
+		{
+			mData.mUUID = content["new_asset"].asUUID();
+			gMeshRepo.updateInventory(LLMeshRepository::inventory_data(mData.mPostData, content));
+			mThread->onTextureUploaded(mData);
+		}
+		else
+		{
+			llwarns << status << ": " << reason << llendl;
+			llwarns << "Retrying. (" << ++mData.mRetries << ")" << llendl;
+
+			if (status == 404)
+			{
+				mThread->uploadTexture(mData);
+			}
+			else if (status == 499)
+			{
+				mThread->mConfirmedTextureQ.push(mData);
+			}
+			else
+			{
+				llerrs << "Unhandled status " << status << llendl;
+			}
+		}
+	}
+};
+
+class LLMeshCostResponder : public LLCurl::Responder
+{
+public:
+	LLMeshUploadData mData;
+	LLMeshUploadThread* mThread;
+
+	LLMeshCostResponder(LLMeshUploadData data, LLMeshUploadThread* thread) 
+		: mData(data), mThread(thread)
+	{
+
+	}
+
+	virtual void completed(U32 status, const std::string& reason, const LLSD& content)
+	{
+		mThread->mPendingConfirmations--;
+
+		if (isGoodStatus(status))
+		{
+			mThread->priceResult(mData, content);	
+		}
+		else
+		{
+			llwarns << status << ": " << reason << llendl;
+			llwarns << "Retrying. (" << ++mData.mRetries << ")" << llendl;
+			
+			if (status == 499)
+			{
+				mThread->uploadModel(mData);
+			}
+			else if (status == 400)
+			{
+				llwarns << "Status 400 received from server, giving up." << llendl;
+			}
+			else
+			{
+				llerrs << "Unhandled status " << status << llendl;
+			}
+		}
+	}
+};
+
+class LLMeshUploadResponder : public LLCurl::Responder
+{
+public:
+	LLMeshUploadData mData;
+	LLMeshUploadThread* mThread;
+
+	LLMeshUploadResponder(LLMeshUploadData data, LLMeshUploadThread* thread)
+		: mData(data), mThread(thread)
+	{
+	}
+
+	virtual void completed(U32 status, const std::string& reason, const LLSD& content)
+	{
+		mThread->mPendingUploads--;
+		if (isGoodStatus(status))
+		{
+			mData.mUUID = content["new_asset"].asUUID();
+			if (mData.mUUID.isNull())
+			{
+				LLSD args;
+				std::string message = content["error"]["message"];
+				std::string identifier = content["error"]["identifier"];
+				std::string invalidity_identifier = content["error"]["invalidity_identifier"];
+
+				args["MESSAGE"] = message;
+				args["IDENTIFIER"] = identifier;
+				args["INVALIDITY_IDENTIFIER"] = invalidity_identifier;
+				args["LABEL"] = mData.mBaseModel->mLabel;
+
+				gMeshRepo.uploadError(args);
+			}
+			else
+			{
+				gMeshRepo.updateInventory(LLMeshRepository::inventory_data(mData.mPostData, content));
+				mThread->onModelUploaded(mData);
+			}
+		}
+		else
+		{
+			llwarns << status << ": " << reason << llendl;
+			llwarns << "Retrying. (" << ++mData.mRetries << ")" << llendl;
+
+			if (status == 404)
+			{
+				mThread->uploadModel(mData);
+			}
+			else if (status == 499)
+			{
+				mThread->mConfirmedQ.push(mData);
+			}
+			else if (status != 500)
+			{ //drop internal server errors on the floor, otherwise grab
+				llerrs << "Unhandled status " << status << llendl;
+			}
+		}
+	}
+};
+
+
+class LLMeshHeaderResponder : public LLCurl::Responder
+{
+public:
+	LLVolumeParams mMeshParams;
+	
+	LLMeshHeaderResponder(const LLVolumeParams& mesh_params)
+		: mMeshParams(mesh_params)
+	{
+	}
+
+	virtual void completedRaw(U32 status, const std::string& reason,
+							  const LLChannelDescriptors& channels,
+							  const LLIOPipe::buffer_ptr_t& buffer);
+
+};
+
+class LLMeshLODResponder : public LLCurl::Responder
+{
+public:
+	LLVolumeParams mMeshParams;
+	S32 mLOD;
+	U32 mRequestedBytes;
+	U32 mOffset;
+
+	LLMeshLODResponder(const LLVolumeParams& mesh_params, S32 lod, U32 offset, U32 requested_bytes)
+		: mMeshParams(mesh_params), mLOD(lod), mOffset(offset), mRequestedBytes(requested_bytes)
+	{
+	}
+
+	virtual void completedRaw(U32 status, const std::string& reason,
+							  const LLChannelDescriptors& channels,
+							  const LLIOPipe::buffer_ptr_t& buffer);
+
+};
+
+class LLMeshSkinInfoResponder : public LLCurl::Responder
+{
+public:
+	LLUUID mMeshID;
+	U32 mRequestedBytes;
+	U32 mOffset;
+
+	LLMeshSkinInfoResponder(const LLUUID& id, U32 offset, U32 size)
+		: mMeshID(id), mRequestedBytes(size), mOffset(offset)
+	{
+	}
+
+	virtual void completedRaw(U32 status, const std::string& reason,
+							  const LLChannelDescriptors& channels,
+							  const LLIOPipe::buffer_ptr_t& buffer);
+
+};
+
+class LLMeshDecompositionResponder : public LLCurl::Responder
+{
+public:
+	LLUUID mMeshID;
+	U32 mRequestedBytes;
+	U32 mOffset;
+
+	LLMeshDecompositionResponder(const LLUUID& id, U32 offset, U32 size)
+		: mMeshID(id), mRequestedBytes(size), mOffset(offset)
+	{
+	}
+
+	virtual void completedRaw(U32 status, const std::string& reason,
+							  const LLChannelDescriptors& channels,
+							  const LLIOPipe::buffer_ptr_t& buffer);
+
+};
+
+
+LLMeshRepoThread::LLMeshRepoThread()
+: LLThread("mesh repo", NULL) 
+{ 
+	mWaiting = false;
+	mMutex = new LLMutex(NULL);
+	mHeaderMutex = new LLMutex(NULL);
+	mSignal = new LLCondition(NULL);
+}
+
+LLMeshRepoThread::~LLMeshRepoThread()
+{
+	
+}
+
+void LLMeshRepoThread::run()
+{
+	mCurlRequest = new LLCurlRequest();
+	LLCDResult res =	LLConvexDecomposition::initThread();
+	if (res != LLCD_OK)
+	{
+		llwarns << "convex decomposition unable to be loaded" << llendl;
+	}
+
+	while (!LLApp::isQuitting())
+	{
+		mWaiting = true;
+		mSignal->wait();
+		mWaiting = false;
+
+		if (!LLApp::isQuitting())
+		{
+			static U32 count = 0;
+
+			static F32 last_hundred = gFrameTimeSeconds;
+
+			if (gFrameTimeSeconds - last_hundred > 1.f)
+			{ //a second has gone by, clear count
+				last_hundred = gFrameTimeSeconds;
+				count = 0;	
+			}
+
+			// NOTE: throttling intentionally favors LOD requests over header requests
+			
+			while (!mLODReqQ.empty() && count < MAX_MESH_REQUESTS_PER_SECOND && sActiveLODRequests < sMaxConcurrentRequests)
+			{
+				{
+					LLMutexLock lock(mMutex);
+					LODRequest req = mLODReqQ.front();
+					mLODReqQ.pop();
+					if (fetchMeshLOD(req.mMeshParams, req.mLOD))
+					{
+						count++;
+					}
+				}
+			}
+
+			while (!mHeaderReqQ.empty() && count < MAX_MESH_REQUESTS_PER_SECOND && sActiveHeaderRequests < sMaxConcurrentRequests)
+			{
+				{
+					LLMutexLock lock(mMutex);
+					HeaderRequest req = mHeaderReqQ.front();
+					mHeaderReqQ.pop();
+					if (fetchMeshHeader(req.mMeshParams))
+					{
+						count++;
+					}
+				}
+			}
+
+			{
+				std::set<LLUUID> incomplete;
+				for (std::set<LLUUID>::iterator iter = mSkinRequests.begin(); iter != mSkinRequests.end(); ++iter)
+				{
+					LLUUID mesh_id = *iter;
+					if (!fetchMeshSkinInfo(mesh_id))
+					{
+						incomplete.insert(mesh_id);
+					}
+				}
+				mSkinRequests = incomplete;
+			}
+
+			{
+				std::set<LLUUID> incomplete;
+				for (std::set<LLUUID>::iterator iter = mDecompositionRequests.begin(); iter != mDecompositionRequests.end(); ++iter)
+				{
+					LLUUID mesh_id = *iter;
+					if (!fetchMeshDecomposition(mesh_id))
+					{
+						incomplete.insert(mesh_id);
+					}
+				}
+				mDecompositionRequests = incomplete;
+			}
+
+
+		}
+
+		mCurlRequest->process();
+	}
+	
+	res = LLConvexDecomposition::quitThread();
+	if (res != LLCD_OK)
+	{
+		llwarns << "convex decomposition unable to be quit" << llendl;
+	}
+
+	delete mCurlRequest;
+	delete mMutex;
+}
+
+void LLMeshRepoThread::loadMeshSkinInfo(const LLUUID& mesh_id)
+{ //protected by mSignal, no locking needed here
+	mSkinRequests.insert(mesh_id);
+}
+
+void LLMeshRepoThread::loadMeshDecomposition(const LLUUID& mesh_id)
+{ //protected by mSignal, no locking needed here
+	mDecompositionRequests.insert(mesh_id);
+}
+	
+void LLMeshRepoThread::loadMeshLOD(const LLVolumeParams& mesh_params, S32 lod)
+{ //protected by mSignal, no locking needed here
+
+	mesh_header_map::iterator iter = mMeshHeader.find(mesh_params.getSculptID());
+	if (iter != mMeshHeader.end())
+	{ //if we have the header, request LOD byte range
+		LODRequest req(mesh_params, lod);
+		mLODReqQ.push(req);
+	}
+	else
+	{ 
+		HeaderRequest req(mesh_params);
+		
+		pending_lod_map::iterator pending = mPendingLOD.find(mesh_params);
+
+		if (pending != mPendingLOD.end())
+		{ //append this lod request to existing header request
+			pending->second.push_back(lod);
+			if (pending->second.size() > 4)
+			{
+				llerrs << "WTF?" << llendl;
+			} 
+		}
+		else
+		{ //if no header request is pending, fetch header
+			mHeaderReqQ.push(req);
+			mPendingLOD[mesh_params].push_back(lod);
+		}
+	}
+}
+
+//static 
+std::string LLMeshRepoThread::constructUrl(LLUUID mesh_id)
+{
+	std::string http_url;
+	
+	if (gAgent.getRegion())
+	{
+		http_url = gAgent.getRegion()->getCapability("GetMesh");
+		scrub_host_name(http_url, gAgent.getRegionHost());
+	}
+
+	if (!http_url.empty())
+	{
+		http_url += "/?mesh_id=";
+		http_url += mesh_id.asString().c_str();
+	}
+	else
+	{
+		llwarns << "Current region does not have GetMesh capability!  Cannot load " << mesh_id << ".mesh" << llendl;
+	}
+
+	return http_url;
+}
+
+bool LLMeshRepoThread::fetchMeshSkinInfo(const LLUUID& mesh_id)
+{ //protected by mMutex
+	mHeaderMutex->lock();
+
+	if (mMeshHeader.find(mesh_id) == mMeshHeader.end())
+	{ //we have no header info for this mesh, do nothing
+		mHeaderMutex->unlock();
+		return false;
+	}
+
+	U32 header_size = mMeshHeaderSize[mesh_id];
+
+	if (header_size > 0)
+	{
+		S32 offset = header_size + mMeshHeader[mesh_id]["skin"]["offset"].asInteger();
+		S32 size = mMeshHeader[mesh_id]["skin"]["size"].asInteger();
+
+		mHeaderMutex->unlock();
+
+		if (offset >= 0 && size > 0)
+		{
+			//check VFS for mesh skin info
+			LLVFile file(gVFS, mesh_id, LLAssetType::AT_MESH);
+			if (file.getSize() >= offset+size)
+			{
+				LLMeshRepository::sCacheBytesRead += size;
+				file.seek(offset);
+				U8* buffer = new U8[size];
+				file.read(buffer, size);
+
+				//make sure buffer isn't all 0's (reserved block but not written)
+				bool zero = true;
+				for (S32 i = 0; i < llmin(size, 1024) && zero; ++i)
+				{
+					zero = buffer[i] > 0 ? false : true;
+				}
+
+				if (!zero)
+				{ //attempt to parse
+					if (skinInfoReceived(mesh_id, buffer, size))
+					{
+						delete[] buffer;
+						return true;
+					}
+				}
+
+				delete[] buffer;
+			}
+
+			//reading from VFS failed for whatever reason, fetch from sim
+			std::vector<std::string> headers;
+			headers.push_back("Accept: application/octet-stream");
+
+			std::string http_url = constructUrl(mesh_id);
+			if (!http_url.empty())
+			{
+				++sActiveLODRequests;
+				LLMeshRepository::sHTTPRequestCount++;
+				mCurlRequest->getByteRange(constructUrl(mesh_id), headers, offset, size,
+										   new LLMeshSkinInfoResponder(mesh_id, offset, size));
+			}
+		}
+	}
+	else
+	{	
+		mHeaderMutex->unlock();
+	}
+
+	//early out was not hit, effectively fetched
+	return true;
+}
+
+bool LLMeshRepoThread::fetchMeshDecomposition(const LLUUID& mesh_id)
+{ //protected by mMutex
+	mHeaderMutex->lock();
+
+	if (mMeshHeader.find(mesh_id) == mMeshHeader.end())
+	{ //we have no header info for this mesh, do nothing
+		mHeaderMutex->unlock();
+		return false;
+	}
+
+	U32 header_size = mMeshHeaderSize[mesh_id];
+
+	if (header_size > 0)
+	{
+		S32 offset = header_size + mMeshHeader[mesh_id]["decomposition"]["offset"].asInteger();
+		S32 size = mMeshHeader[mesh_id]["decomposition"]["size"].asInteger();
+
+		mHeaderMutex->unlock();
+
+		if (offset >= 0 && size > 0)
+		{
+			//check VFS for mesh skin info
+			LLVFile file(gVFS, mesh_id, LLAssetType::AT_MESH);
+			if (file.getSize() >= offset+size)
+			{
+				LLMeshRepository::sCacheBytesRead += size;
+				file.seek(offset);
+				U8* buffer = new U8[size];
+				file.read(buffer, size);
+
+				//make sure buffer isn't all 0's (reserved block but not written)
+				bool zero = true;
+				for (S32 i = 0; i < llmin(size, 1024) && zero; ++i)
+				{
+					zero = buffer[i] > 0 ? false : true;
+				}
+
+				if (!zero)
+				{ //attempt to parse
+					if (decompositionReceived(mesh_id, buffer, size))
+					{
+						delete[] buffer;
+						return true;
+					}
+				}
+
+				delete[] buffer;
+			}
+
+			//reading from VFS failed for whatever reason, fetch from sim
+			std::vector<std::string> headers;
+			headers.push_back("Accept: application/octet-stream");
+
+			std::string http_url = constructUrl(mesh_id);
+			if (!http_url.empty())
+			{
+				++sActiveLODRequests;
+				LLMeshRepository::sHTTPRequestCount++;
+				mCurlRequest->getByteRange(constructUrl(mesh_id), headers, offset, size,
+										   new LLMeshDecompositionResponder(mesh_id, offset, size));
+			}
+		}
+	}
+	else
+	{	
+		mHeaderMutex->unlock();
+	}
+
+	//early out was not hit, effectively fetched
+	return true;
+}
+
+bool LLMeshRepoThread::fetchMeshHeader(const LLVolumeParams& mesh_params)
+{
+	bool retval = false;
+
+	{
+		//look for mesh in asset in vfs
+		LLVFile file(gVFS, mesh_params.getSculptID(), LLAssetType::AT_MESH);
+			
+		S32 size = file.getSize();
+
+		if (size > 0)
+		{
+			U8 buffer[1024];
+			S32 bytes = llmin(size, 1024);
+			LLMeshRepository::sCacheBytesRead += bytes;	
+			file.read(buffer, bytes);
+			if (headerReceived(mesh_params, buffer, bytes))
+			{ //did not do an HTTP request, return false
+				return false;
+			}
+		}
+	}
+
+	//either cache entry doesn't exist or is corrupt, request header from simulator
+
+	std::vector<std::string> headers;
+	headers.push_back("Accept: application/octet-stream");
+
+	std::string http_url = constructUrl(mesh_params.getSculptID());
+	if (!http_url.empty())
+	{
+		++sActiveHeaderRequests;
+		retval = true;
+		//grab first 4KB if we're going to bother with a fetch.  Cache will prevent future fetches if a full mesh fits
+		//within the first 4KB
+		LLMeshRepository::sHTTPRequestCount++;
+		mCurlRequest->getByteRange(http_url, headers, 0, 4096, new LLMeshHeaderResponder(mesh_params));
+	}
+
+	return retval;
+}
+
+bool LLMeshRepoThread::fetchMeshLOD(const LLVolumeParams& mesh_params, S32 lod)
+{ //protected by mMutex
+	mHeaderMutex->lock();
+
+	bool retval = false;
+
+	LLUUID mesh_id = mesh_params.getSculptID();
+	
+	U32 header_size = mMeshHeaderSize[mesh_id];
+
+	if (header_size > 0)
+	{
+		S32 offset = header_size + mMeshHeader[mesh_id][header_lod[lod]]["offset"].asInteger();
+		S32 size = mMeshHeader[mesh_id][header_lod[lod]]["size"].asInteger();
+		mHeaderMutex->unlock();
+		if (offset >= 0 && size > 0)
+		{
+
+			//check VFS for mesh asset
+			LLVFile file(gVFS, mesh_id, LLAssetType::AT_MESH);
+			if (file.getSize() >= offset+size)
+			{
+				LLMeshRepository::sCacheBytesRead += size;
+				file.seek(offset);
+				U8* buffer = new U8[size];
+				file.read(buffer, size);
+
+				//make sure buffer isn't all 0's (reserved block but not written)
+				bool zero = true;
+				for (S32 i = 0; i < llmin(size, 1024) && zero; ++i)
+				{
+					zero = buffer[i] > 0 ? false : true;
+				}
+
+				if (!zero)
+				{ //attempt to parse
+					if (lodReceived(mesh_params, lod, buffer, size))
+					{
+						delete[] buffer;
+						return false;
+					}
+				}
+
+				delete[] buffer;
+			}
+
+			//reading from VFS failed for whatever reason, fetch from sim
+			std::vector<std::string> headers;
+			headers.push_back("Accept: application/octet-stream");
+
+			std::string http_url = constructUrl(mesh_id);
+			if (!http_url.empty())
+			{
+				++sActiveLODRequests;
+				retval = true;
+				LLMeshRepository::sHTTPRequestCount++;
+				mCurlRequest->getByteRange(constructUrl(mesh_id), headers, offset, size,
+										   new LLMeshLODResponder(mesh_params, lod, offset, size));
+			}
+			else
+			{
+				mUnavailableQ.push(LODRequest(mesh_params, lod));
+			}
+		}
+		else
+		{
+			mUnavailableQ.push(LODRequest(mesh_params, lod));
+		}
+	}
+	else
+	{
+		mHeaderMutex->unlock();
+	}
+
+	return retval;
+}
+
+bool LLMeshRepoThread::headerReceived(const LLVolumeParams& mesh_params, U8* data, S32 data_size)
+{
+	LLSD header;
+	
+	U32 header_size = 0;
+	if (data_size > 0)
+	{
+		std::string res_str((char*) data, data_size);
+
+		std::istringstream stream(res_str);
+
+		if (!LLSDSerialize::deserialize(header, stream, data_size))
+		{
+			llwarns << "Mesh header parse error.  Not a valid mesh asset!" << llendl;
+			return false;
+		}
+
+		header_size = stream.tellg();
+	}
+	else
+	{
+		header["404"] = 1;
+	}
+
+	{
+		U32 cost = gMeshRepo.calcResourceCost(header);
+
+		LLUUID mesh_id = mesh_params.getSculptID();
+		
+		mHeaderMutex->lock();
+		mMeshHeaderSize[mesh_id] = header_size;
+		mMeshHeader[mesh_id] = header;
+		mMeshResourceCost[mesh_id] = cost;
+		mHeaderMutex->unlock();
+
+		//check for pending requests
+		pending_lod_map::iterator iter = mPendingLOD.find(mesh_params);
+		if (iter != mPendingLOD.end())
+		{
+			for (U32 i = 0; i < iter->second.size(); ++i)
+			{
+				LODRequest req(mesh_params, iter->second[i]);
+				mLODReqQ.push(req);
+			}
+		}
+		mPendingLOD.erase(iter);
+	}
+
+	return true;
+}
+
+bool LLMeshRepoThread::lodReceived(const LLVolumeParams& mesh_params, S32 lod, U8* data, S32 data_size)
+{
+	LLVolume* volume = new LLVolume(mesh_params, LLVolumeLODGroup::getVolumeScaleFromDetail(lod));
+	std::string mesh_string((char*) data, data_size);
+	std::istringstream stream(mesh_string);
+
+	if (volume->unpackVolumeFaces(stream, data_size))
+	{
+		LoadedMesh mesh(volume, mesh_params, lod);
+		if (volume->getNumFaces() > 0)
+		{
+			LLMutexLock lock(mMutex);
+			mLoadedQ.push(mesh);
+			return true;
+		}
+	}
+
+	return false;
+}
+
+bool LLMeshRepoThread::skinInfoReceived(const LLUUID& mesh_id, U8* data, S32 data_size)
+{
+	LLSD skin;
+
+	if (data_size > 0)
+	{
+		std::string res_str((char*) data, data_size);
+
+		std::istringstream stream(res_str);
+
+		if (!unzip_llsd(skin, stream, data_size))
+		{
+			llwarns << "Mesh skin info parse error.  Not a valid mesh asset!" << llendl;
+			return false;
+		}
+	}
+	
+	{
+		LLMeshSkinInfo info;
+		info.mMeshID = mesh_id;
+
+		if (skin.has("joint_names"))
+		{
+			for (U32 i = 0; i < skin["joint_names"].size(); ++i)
+			{
+				info.mJointNames.push_back(skin["joint_names"][i]);
+			}
+		}
+
+		if (skin.has("inverse_bind_matrix"))
+		{
+			for (U32 i = 0; i < skin["inverse_bind_matrix"].size(); ++i)
+			{
+				LLMatrix4 mat;
+				for (U32 j = 0; j < 4; j++)
+				{
+					for (U32 k = 0; k < 4; k++)
+					{
+						mat.mMatrix[j][k] = skin["inverse_bind_matrix"][i][j*4+k].asReal();
+					}
+				}
+
+				info.mInvBindMatrix.push_back(mat);
+			}
+		}
+
+		if (skin.has("bind_shape_matrix"))
+		{
+			for (U32 j = 0; j < 4; j++)
+			{
+				for (U32 k = 0; k < 4; k++)
+				{
+					info.mBindShapeMatrix.mMatrix[j][k] = skin["bind_shape_matrix"][j*4+k].asReal();
+				}
+			}
+		}
+
+		mSkinInfoQ.push(info);
+	}
+
+	return true;
+}
+
+bool LLMeshRepoThread::decompositionReceived(const LLUUID& mesh_id, U8* data, S32 data_size)
+{
+	LLSD decomp;
+
+	if (data_size > 0)
+	{
+		std::string res_str((char*) data, data_size);
+
+		std::istringstream stream(res_str);
+
+		if (!unzip_llsd(decomp, stream, data_size))
+		{
+			llwarns << "Mesh decomposition parse error.  Not a valid mesh asset!" << llendl;
+			return false;
+		}
+	}
+	
+	{
+		LLMeshDecomposition* d = new LLMeshDecomposition();
+		d->mMeshID = mesh_id;
+
+		// updated for const-correctness. gcc is picky about this type of thing - Nyx
+		const LLSD::Binary& hulls = decomp["HullList"].asBinary();
+		const LLSD::Binary& position = decomp["Position"].asBinary();
+
+		U16* p = (U16*) &position[0];
+
+		d->mHull.resize(hulls.size());
+
+		LLVector3 min;
+		LLVector3 max;
+		LLVector3 range;
+
+		min.setValue(decomp["Min"]);
+		max.setValue(decomp["Max"]);
+		range = max-min;
+
+		for (U32 i = 0; i < hulls.size(); ++i)
+		{
+			U8 count = hulls[i];
+			
+			for (U32 j = 0; j < count; ++j)
+			{
+				d->mHull[i].push_back(LLVector3(
+					(F32) p[0]/65535.f*range.mV[0]+min.mV[0],
+					(F32) p[1]/65535.f*range.mV[1]+min.mV[1],
+					(F32) p[2]/65535.f*range.mV[2]+min.mV[2]));
+				p += 3;
+			}		 
+
+		}
+			
+		//get mesh for decomposition
+		for (U32 i = 0; i < d->mHull.size(); ++i)
+		{
+			LLCDHull hull;
+			hull.mNumVertices = d->mHull[i].size();
+			hull.mVertexBase = d->mHull[i][0].mV;
+			hull.mVertexStrideBytes = 12;
+
+			LLCDMeshData mesh;
+			LLCDResult res = LLCD_OK;
+			if (LLConvexDecomposition::getInstance() != NULL)
+			{
+				res = LLConvexDecomposition::getInstance()->getMeshFromHull(&hull, &mesh);
+			}
+			if (res != LLCD_OK)
+			{
+				llwarns << "could not get mesh from hull from convex decomposition lib." << llendl;
+				return false;
+			}
+
+
+			d->mMesh.push_back(get_vertex_buffer_from_mesh(mesh));
+		}	
+
+		mDecompositionQ.push(d);
+	}
+
+	return true;
+}
+
+LLMeshUploadThread::LLMeshUploadThread(LLMeshUploadThread::instance_list& data, LLVector3& scale, bool upload_textures)
+: LLThread("mesh upload")
+{
+	mInstanceList = data;
+	mUploadTextures = upload_textures;
+	mMutex = new LLMutex(NULL);
+	mCurlRequest = NULL;
+	mPendingConfirmations = 0;
+	mPendingUploads = 0;
+	mPendingCost = 0;
+	mFinished = false;
+	mOrigin = gAgent.getPositionAgent();
+	mHost = gAgent.getRegionHost();
+	mUploadObjectAssetCapability = gAgent.getRegion()->getCapability("UploadObjectAsset");
+	mNewInventoryCapability = gAgent.getRegion()->getCapability("NewFileAgentInventoryVariablePrice");
+
+	mOrigin += gAgent.getAtAxis() * scale.magVec();
+	
+	scrub_host_name(mUploadObjectAssetCapability, mHost);
+	scrub_host_name(mNewInventoryCapability, mHost);
+}
+
+LLMeshUploadThread::~LLMeshUploadThread()
+{
+
+}
+
+void LLMeshUploadThread::run()
+{
+	mCurlRequest = new LLCurlRequest();
+
+	//build map of LLModel refs to instances for callbacks
+	for (instance_list::iterator iter = mInstanceList.begin(); iter != mInstanceList.end(); ++iter)
+	{
+		mInstance[iter->mModel].push_back(*iter);
+	}
+
+	std::set<LLPointer<LLViewerTexture> > textures;
+
+	//populate upload queue with relevant models
+	for (instance_map::iterator iter = mInstance.begin(); iter != mInstance.end(); ++iter)
+	{
+		LLMeshUploadData data;
+		data.mBaseModel = iter->first;
+
+		LLModelInstance& instance = *(iter->second.begin());
+
+		for (S32 i = 0; i < 5; i++)
+		{
+			data.mModel[i] = instance.mLOD[i];
+		}
+
+		uploadModel(data);
+
+		if (mUploadTextures)
+		{
+			for (std::vector<LLImportMaterial>::iterator material_iter = instance.mMaterial.begin();
+				material_iter != instance.mMaterial.end(); ++material_iter)
+			{
+
+				if (textures.find(material_iter->mDiffuseMap) == textures.end())
+				{
+					textures.insert(material_iter->mDiffuseMap);
+					
+					LLTextureUploadData data(material_iter->mDiffuseMap, material_iter->mDiffuseMapLabel);
+					uploadTexture(data);
+				}
+			}
+		}
+	}
+
+
+	//upload textures
+	bool done = false;
+	do
+	{
+		if (!mTextureQ.empty())
+		{
+			sendCostRequest(mTextureQ.front());
+			mTextureQ.pop();
+		}
+
+		if (!mConfirmedTextureQ.empty())
+		{
+			doUploadTexture(mConfirmedTextureQ.front());
+			mConfirmedTextureQ.pop();
+		}
+
+		mCurlRequest->process();
+
+		done = mTextureQ.empty() && mConfirmedTextureQ.empty();
+	}
+	while (!done || mCurlRequest->getQueued() > 0);
+
+	LLSD object_asset;
+	object_asset["objects"] = LLSD::emptyArray();
+
+	done = false;
+	do 
+	{
+		static S32 count = 0;
+		static F32 last_hundred = gFrameTimeSeconds;
+		if (gFrameTimeSeconds - last_hundred > 1.f)
+		{
+			last_hundred = gFrameTimeSeconds;
+			count = 0;
+		}
+
+		//how many requests to push before calling process
+		const S32 PUSH_PER_PROCESS = 32;
+
+		S32 tcount = llmin(count+PUSH_PER_PROCESS, 100);
+
+		while (!mUploadQ.empty() && count < tcount)
+		{ //send any pending upload requests
+			mMutex->lock();
+			LLMeshUploadData data = mUploadQ.front();
+			mUploadQ.pop();
+			mMutex->unlock();
+			sendCostRequest(data);
+			count++;
+		}
+
+		tcount = llmin(count+PUSH_PER_PROCESS, 100);
+		
+		while (!mConfirmedQ.empty() && count < tcount)
+		{ //process any meshes that have been confirmed for upload
+			LLMeshUploadData& data = mConfirmedQ.front();
+			doUploadModel(data);
+			mConfirmedQ.pop();
+			count++;
+		}
+	
+		tcount = llmin(count+PUSH_PER_PROCESS, 100);
+
+		while (!mInstanceQ.empty() && count < tcount)
+		{ //create any objects waiting for upload
+			count++;
+			object_asset["objects"].append(createObject(mInstanceQ.front()));
+			mInstanceQ.pop();
+		}
+			
+		mCurlRequest->process();
+			
+		done = mInstanceQ.empty() && mConfirmedQ.empty() && mUploadQ.empty();
+	}
+	while (!done || mCurlRequest->getQueued() > 0);
+
+	delete mCurlRequest;
+	mCurlRequest = NULL;
+
+	// now upload the object asset
+	std::string url = mUploadObjectAssetCapability;
+	LLHTTPClient::post(url, object_asset, new LLHTTPClient::Responder());
+
+	mFinished = true;
+}
+
+void LLMeshUploadThread::uploadModel(LLMeshUploadData& data)
+{ //called from arbitrary thread
+	{
+		LLMutexLock lock(mMutex);
+		mUploadQ.push(data);
+	}
+}
+
+void LLMeshUploadThread::uploadTexture(LLTextureUploadData& data)
+{ //called from mesh upload thread
+	mTextureQ.push(data);	
+}
+
+
+static LLFastTimer::DeclareTimer FTM_NOTIFY_MESH_LOADED("Notify Loaded");
+static LLFastTimer::DeclareTimer FTM_NOTIFY_MESH_UNAVAILABLE("Notify Unavailable");
+
+void LLMeshRepoThread::notifyLoadedMeshes()
+{
+	while (!mLoadedQ.empty())
+	{
+		mMutex->lock();
+		LoadedMesh mesh = mLoadedQ.front();
+		mLoadedQ.pop();
+		mMutex->unlock();
+		
+		if (mesh.mVolume && mesh.mVolume->getNumVolumeFaces() > 0)
+		{
+			gMeshRepo.notifyMeshLoaded(mesh.mMeshParams, mesh.mVolume);
+		}
+		else
+		{
+			gMeshRepo.notifyMeshUnavailable(mesh.mMeshParams, 
+				LLVolumeLODGroup::getVolumeDetailFromScale(mesh.mVolume->getDetail()));
+		}
+	}
+
+	while (!mUnavailableQ.empty())
+	{
+		mMutex->lock();
+		LODRequest req = mUnavailableQ.front();
+		mUnavailableQ.pop();
+		mMutex->unlock();
+		
+		gMeshRepo.notifyMeshUnavailable(req.mMeshParams, req.mLOD);
+	}
+
+	while (!mSkinInfoQ.empty())
+	{
+		gMeshRepo.notifySkinInfoReceived(mSkinInfoQ.front());
+		mSkinInfoQ.pop();
+	}
+
+	while (!mDecompositionQ.empty())
+	{
+		gMeshRepo.notifyDecompositionReceived(mDecompositionQ.front());
+		mDecompositionQ.pop();
+	}
+}
+
+S32 LLMeshRepoThread::getActualMeshLOD(const LLVolumeParams& mesh_params, S32 lod) 
+{ //only ever called from main thread
+	lod = llclamp(lod, 0, 3);
+
+	LLMutexLock lock(mHeaderMutex);
+	mesh_header_map::iterator iter = mMeshHeader.find(mesh_params.getSculptID());
+
+	if (iter != mMeshHeader.end())
+	{
+		LLSD& header = iter->second;
+
+		if (header.has("404"))
+		{
+			return -1;
+		}
+
+		if (header[header_lod[lod]]["size"].asInteger() > 0)
+		{
+			return lod;
+		}
+
+		//search down to find the next available lower lod
+		for (S32 i = lod-1; i >= 0; --i)
+		{
+			if (header[header_lod[i]]["size"].asInteger() > 0)
+			{
+				return i;
+			}
+		}
+
+		//search up to find then ext available higher lod
+		for (S32 i = lod+1; i < 4; ++i)
+		{
+			if (header[header_lod[i]]["size"].asInteger() > 0)
+			{
+				return i;
+			}
+		}
+
+		//header exists and no good lod found, treat as 404
+		header["404"] = 1;
+		return -1;
+	}
+
+	return lod;
+}
+
+U32 LLMeshRepoThread::getResourceCost(const LLUUID& mesh_id)
+{
+	LLMutexLock lock(mHeaderMutex);
+	
+	std::map<LLUUID, U32>::iterator iter = mMeshResourceCost.find(mesh_id);
+	if (iter != mMeshResourceCost.end())
+	{
+		return iter->second;
+	}
+
+	return 0;
+}
+
+void LLMeshRepository::cacheOutgoingMesh(LLMeshUploadData& data, LLSD& header)
+{
+	mThread->mMeshHeader[data.mUUID] = header;
+
+	// we cache the mesh for default parameters
+	LLVolumeParams volume_params;
+	volume_params.setType(LL_PCODE_PROFILE_SQUARE, LL_PCODE_PATH_LINE);
+	volume_params.setSculptID(data.mUUID, LL_SCULPT_TYPE_MESH);
+
+	for (U32 i = 0; i < 4; i++)
+	{
+		if (data.mModel[i].notNull())
+		{
+			LLPointer<LLVolume> volume = new LLVolume(volume_params, LLVolumeLODGroup::getVolumeScaleFromDetail(i));
+			volume->copyVolumeFaces(data.mModel[i]);
+		}
+	}
+
+}
+
+void LLMeshLODResponder::completedRaw(U32 status, const std::string& reason,
+							  const LLChannelDescriptors& channels,
+							  const LLIOPipe::buffer_ptr_t& buffer)
+{
+
+	LLMeshRepoThread::sActiveLODRequests--;
+	S32 data_size = buffer->countAfter(channels.in(), NULL);
+
+	if (status < 200 || status > 400)
+	{
+		llwarns << status << ": " << reason << llendl;
+	}
+
+	if (data_size < mRequestedBytes)
+	{
+		if (status == 499 || status == 503)
+		{ //timeout or service unavailable, try again
+			LLMeshRepository::sHTTPRetryCount++;
+			gMeshRepo.mThread->loadMeshLOD(mMeshParams, mLOD);
+		}
+		else
+		{
+			llwarns << "Unhandled status " << status << llendl;
+		}
+		return;
+	}
+
+	LLMeshRepository::sBytesReceived += mRequestedBytes;
+
+	U8* data = NULL;
+
+	if (data_size > 0)
+	{
+		data = new U8[data_size];
+		buffer->readAfter(channels.in(), NULL, data, data_size);
+	}
+
+	if (gMeshRepo.mThread->lodReceived(mMeshParams, mLOD, data, data_size))
+	{
+		//good fetch from sim, write to VFS for caching
+		LLVFile file(gVFS, mMeshParams.getSculptID(), LLAssetType::AT_MESH, LLVFile::WRITE);
+
+		S32 offset = mOffset;
+		S32 size = mRequestedBytes;
+
+		if (file.getSize() >= offset+size)
+		{
+			file.seek(offset);
+			file.write(data, size);
+			LLMeshRepository::sCacheBytesWritten += size;
+		}
+	}
+
+	delete [] data;
+}
+
+void LLMeshSkinInfoResponder::completedRaw(U32 status, const std::string& reason,
+							  const LLChannelDescriptors& channels,
+							  const LLIOPipe::buffer_ptr_t& buffer)
+{
+	S32 data_size = buffer->countAfter(channels.in(), NULL);
+
+	if (status < 200 || status > 400)
+	{
+		llwarns << status << ": " << reason << llendl;
+	}
+
+	if (data_size < mRequestedBytes)
+	{
+		if (status == 499 || status == 503)
+		{ //timeout or service unavailable, try again
+			LLMeshRepository::sHTTPRetryCount++;
+			gMeshRepo.mThread->loadMeshSkinInfo(mMeshID);
+		}
+		else
+		{
+			llwarns << "Unhandled status " << status << llendl;
+		}
+		return;
+	}
+
+	LLMeshRepository::sBytesReceived += mRequestedBytes;
+
+	U8* data = NULL;
+
+	if (data_size > 0)
+	{
+		data = new U8[data_size];
+		buffer->readAfter(channels.in(), NULL, data, data_size);
+	}
+
+	if (gMeshRepo.mThread->skinInfoReceived(mMeshID, data, data_size))
+	{
+		//good fetch from sim, write to VFS for caching
+		LLVFile file(gVFS, mMeshID, LLAssetType::AT_MESH, LLVFile::WRITE);
+
+		S32 offset = mOffset;
+		S32 size = mRequestedBytes;
+
+		if (file.getSize() >= offset+size)
+		{
+			LLMeshRepository::sCacheBytesWritten += size;
+			file.seek(offset);
+			file.write(data, size);
+		}
+	}
+
+	delete [] data;
+}
+
+void LLMeshDecompositionResponder::completedRaw(U32 status, const std::string& reason,
+							  const LLChannelDescriptors& channels,
+							  const LLIOPipe::buffer_ptr_t& buffer)
+{
+	S32 data_size = buffer->countAfter(channels.in(), NULL);
+
+	if (status < 200 || status > 400)
+	{
+		llwarns << status << ": " << reason << llendl;
+	}
+
+	if (data_size < mRequestedBytes)
+	{
+		if (status == 499 || status == 503)
+		{ //timeout or service unavailable, try again
+			LLMeshRepository::sHTTPRetryCount++;
+			gMeshRepo.mThread->loadMeshDecomposition(mMeshID);
+		}
+		else
+		{
+			llwarns << "Unhandled status " << status << llendl;
+		}
+		return;
+	}
+
+	LLMeshRepository::sBytesReceived += mRequestedBytes;
+
+	U8* data = NULL;
+
+	if (data_size > 0)
+	{
+		data = new U8[data_size];
+		buffer->readAfter(channels.in(), NULL, data, data_size);
+	}
+
+	if (gMeshRepo.mThread->decompositionReceived(mMeshID, data, data_size))
+	{
+		//good fetch from sim, write to VFS for caching
+		LLVFile file(gVFS, mMeshID, LLAssetType::AT_MESH, LLVFile::WRITE);
+
+		S32 offset = mOffset;
+		S32 size = mRequestedBytes;
+
+		if (file.getSize() >= offset+size)
+		{
+			LLMeshRepository::sCacheBytesWritten += size;
+			file.seek(offset);
+			file.write(data, size);
+		}
+	}
+
+	delete [] data;
+}
+
+void LLMeshHeaderResponder::completedRaw(U32 status, const std::string& reason,
+							  const LLChannelDescriptors& channels,
+							  const LLIOPipe::buffer_ptr_t& buffer)
+{
+	LLMeshRepoThread::sActiveHeaderRequests--;
+	if (status < 200 || status > 400)
+	{
+		llwarns << status << ": " << reason << llendl;
+	}
+
+	S32 data_size = buffer->countAfter(channels.in(), NULL);
+
+	U8* data = NULL;
+
+	if (data_size > 0)
+	{
+		data = new U8[data_size];
+		buffer->readAfter(channels.in(), NULL, data, data_size);
+	}
+
+	LLMeshRepository::sBytesReceived += llmin(data_size, 4096);
+
+	if (!gMeshRepo.mThread->headerReceived(mMeshParams, data, data_size))
+	{
+		llwarns << "Header responder failed with status: " << status << ": " << reason << llendl;
+		if (status == 503 || status == 499)
+		{ //retry
+			LLMeshRepository::sHTTPRetryCount++;
+			LLMeshRepoThread::HeaderRequest req(mMeshParams);
+			gMeshRepo.mThread->mHeaderReqQ.push(req);
+		}
+	}
+	else if (data && data_size > 0)
+	{
+		//header was successfully retrieved from sim, cache in vfs
+		LLUUID mesh_id = mMeshParams.getSculptID();
+		LLSD header = gMeshRepo.mThread->mMeshHeader[mesh_id];
+
+		std::stringstream str;
+
+		S32 lod_bytes = 0;
+
+		for (U32 i = 0; i < LLModel::LOD_PHYSICS; ++i)
+		{ //figure out how many bytes we'll need to reserve in the file
+			std::string lod_name = header_lod[i];
+			lod_bytes = llmax(lod_bytes, header[lod_name]["offset"].asInteger()+header[lod_name]["size"].asInteger());
+		}
+		
+		//just in case skin info or decomposition is at the end of the file (which it shouldn't be)
+		lod_bytes = llmax(lod_bytes, header["skin"]["offset"].asInteger() + header["skin"]["size"].asInteger());
+		lod_bytes = llmax(lod_bytes, header["decomposition"]["offset"].asInteger() + header["decomposition"]["size"].asInteger());
+
+		S32 header_bytes = (S32) gMeshRepo.mThread->mMeshHeaderSize[mesh_id];
+		S32 bytes = lod_bytes + header_bytes; 
+
+		
+		//it's possible for the remote asset to have more data than is needed for the local cache
+		//only allocate as much space in the VFS as is needed for the local cache
+		data_size = llmin(data_size, bytes);
+
+		LLVFile file(gVFS, mesh_id, LLAssetType::AT_MESH, LLVFile::WRITE);
+		if (file.getMaxSize() >= bytes || file.setMaxSize(bytes))
+		{
+			LLMeshRepository::sCacheBytesWritten += data_size;
+
+			file.write((const U8*) data, data_size);
+			
+			//zero out the rest of the file 
+			U8 block[4096];
+			memset(block, 0, 4096);
+
+			while (bytes-file.tell() > 4096)
+			{
+				file.write(block, 4096);
+			}
+
+			S32 remaining = bytes-file.tell();
+
+			if (remaining < 0 || remaining > 4096)
+			{
+				llerrs << "Bad padding of mesh asset cache entry." << llendl;
+			}
+
+			if (remaining > 0)
+			{
+				file.write(block, remaining);
+			}
+		}
+	}
+
+	delete [] data;
+}
+
+
+LLMeshRepository::LLMeshRepository()
+: mMeshMutex(NULL),
+  mMeshThreadCount(0),
+  mThread(NULL)
+{
+
+}
+
+void LLMeshRepository::init()
+{
+	mMeshMutex = new LLMutex(NULL);
+	
+	mDecompThread = new LLPhysicsDecomp();
+	mDecompThread->start();
+
+	while (!mDecompThread->mInited)
+	{ //wait for physics decomp thread to init
+		apr_sleep(100);
+	}
+
+	mThread = new LLMeshRepoThread();
+	mThread->start();
+}
+
+void LLMeshRepository::shutdown()
+{
+	mThread->mSignal->signal();
+
+	delete mThread;
+	mThread = NULL;
+
+	for (U32 i = 0; i < mUploads.size(); ++i)
+	{
+		delete mUploads[i];
+	}
+
+	mUploads.clear();
+
+	delete mMeshMutex;
+	mMeshMutex = NULL;
+
+	if (mDecompThread)
+	{
+		mDecompThread->shutdown();
+		delete mDecompThread;
+		mDecompThread = NULL;
+	}
+}
+
+
+S32 LLMeshRepository::loadMesh(LLVOVolume* vobj, const LLVolumeParams& mesh_params, S32 detail)
+{
+	if (detail < 0 || detail > 4)
+	{
+		return detail;
+	}
+
+	LLFastTimer t(FTM_LOAD_MESH); 
+
+	{
+		LLMutexLock lock(mMeshMutex);
+		//add volume to list of loading meshes
+		mesh_load_map::iterator iter = mLoadingMeshes[detail].find(mesh_params);
+		if (iter != mLoadingMeshes[detail].end())
+		{ //request pending for this mesh, append volume id to list
+			iter->second.insert(vobj->getID());
+		}
+		else
+		{
+			//first request for this mesh
+			mLoadingMeshes[detail][mesh_params].insert(vobj->getID());
+			mPendingRequests.push_back(LLMeshRepoThread::LODRequest(mesh_params, detail));
+		}
+	}
+
+	//do a quick search to see if we can't display something while we wait for this mesh to load
+	LLVolume* volume = vobj->getVolume();
+
+	if (volume)
+	{
+		if (volume->getNumVolumeFaces() == 0 && !volume->isTetrahedron())
+		{
+			volume->makeTetrahedron();
+		}
+
+		LLVolumeParams params = volume->getParams();
+
+		LLVolumeLODGroup* group = LLPrimitive::getVolumeManager()->getGroup(params);
+
+		if (group)
+		{
+			//first see what the next lowest LOD available might be
+			for (S32 i = detail-1; i >= 0; --i)
+			{
+				LLVolume* lod = group->refLOD(i);
+				if (lod && !lod->isTetrahedron() && lod->getNumVolumeFaces() > 0)
+				{
+					group->derefLOD(lod);
+					return i;
+				}
+
+				group->derefLOD(lod);
+			}
+
+			//no lower LOD is a available, is a higher lod available?
+			for (S32 i = detail+1; i < 4; ++i)
+			{
+				LLVolume* lod = group->refLOD(i);
+				if (lod && !lod->isTetrahedron() && lod->getNumVolumeFaces() > 0)
+				{
+					group->derefLOD(lod);
+					return i;
+				}
+
+				group->derefLOD(lod);
+			}
+		}
+		else
+		{
+			llerrs << "WTF?" << llendl;
+		}
+	}
+
+	return detail;
+}
+
+static LLFastTimer::DeclareTimer FTM_START_MESH_THREAD("Start Thread");
+static LLFastTimer::DeclareTimer FTM_LOAD_MESH_LOD("Load LOD");
+static LLFastTimer::DeclareTimer FTM_MESH_LOCK1("Lock 1");
+static LLFastTimer::DeclareTimer FTM_MESH_LOCK2("Lock 2");
+
+void LLMeshRepository::notifyLoadedMeshes()
+{ //called from main thread
+
+	LLMeshRepoThread::sMaxConcurrentRequests = gSavedSettings.getU32("MeshMaxConcurrentRequests");
+
+	//clean up completed upload threads
+	for (std::vector<LLMeshUploadThread*>::iterator iter = mUploads.begin(); iter != mUploads.end(); )
+	{
+		LLMeshUploadThread* thread = *iter;
+
+		if (thread->isStopped() && thread->finished())
+		{
+			iter = mUploads.erase(iter);
+			delete thread;
+		}
+		else
+		{
+			++iter;
+		}
+	}
+
+	//update inventory
+	if (!mInventoryQ.empty())
+	{
+		LLMutexLock lock(mMeshMutex);
+		while (!mInventoryQ.empty())
+		{
+			inventory_data& data = mInventoryQ.front();
+
+			LLAssetType::EType asset_type = LLAssetType::lookup(data.mPostData["asset_type"].asString());
+			LLInventoryType::EType inventory_type = LLInventoryType::lookup(data.mPostData["inventory_type"].asString());
+
+			on_new_single_inventory_upload_complete(
+				asset_type,
+				inventory_type,
+				data.mPostData["asset_type"].asString(),
+				data.mPostData["folder_id"].asUUID(),
+				data.mPostData["name"],
+				data.mPostData["description"],
+				data.mResponse,
+				0);
+			
+			mInventoryQ.pop();
+		}
+	}
+	
+	if (!mThread->mWaiting)
+	{ //curl thread is churning, wait for it to go idle
+		return;
+	}
+
+	LLFastTimer t(FTM_MESH_UPDATE);
+
+	{
+		LLFastTimer t(FTM_MESH_LOCK1);
+		mMeshMutex->lock();	
+	}
+
+	{
+		LLFastTimer t(FTM_MESH_LOCK2);
+		mThread->mMutex->lock();
+	}
+	
+	//popup queued error messages from background threads
+	while (!mUploadErrorQ.empty())
+	{
+		LLNotificationsUtil::add("MeshUploadError", mUploadErrorQ.front());
+		mUploadErrorQ.pop();
+	}
+
+	S32 push_count = LLMeshRepoThread::sMaxConcurrentRequests-(LLMeshRepoThread::sActiveHeaderRequests+LLMeshRepoThread::sActiveLODRequests);
+
+	if (push_count > 0)
+	{
+		//calculate "score" for pending requests
+
+		//create score map
+		std::map<LLUUID, F32> score_map;
+
+		for (U32 i = 0; i < 4; ++i)
+		{
+			for (mesh_load_map::iterator iter = mLoadingMeshes[i].begin();  iter != mLoadingMeshes[i].end(); ++iter)
+			{
+				F32 max_score = 0.f;
+				for (std::set<LLUUID>::iterator obj_iter = iter->second.begin(); obj_iter != iter->second.end(); ++obj_iter)
+				{
+					LLViewerObject* object = gObjectList.findObject(*obj_iter);
+
+					if (object)
+					{
+						LLDrawable* drawable = object->mDrawable;
+						if (drawable)
+						{
+							F32 cur_score = drawable->getRadius()/llmax(drawable->mDistanceWRTCamera, 1.f);
+							max_score = llmax(max_score, cur_score);
+						}
+					}
+				}
+				
+				score_map[iter->first.getSculptID()] = max_score;
+			}
+		}
+
+		//set "score" for pending requests
+		for (std::vector<LLMeshRepoThread::LODRequest>::iterator iter = mPendingRequests.begin(); iter != mPendingRequests.end(); ++iter)
+		{
+			iter->mScore = score_map[iter->mMeshParams.getSculptID()];
+		}
+
+		//sort by "score"
+		std::sort(mPendingRequests.begin(), mPendingRequests.end(), LLMeshRepoThread::CompareScoreGreater());
+
+		while (!mPendingRequests.empty() && push_count > 0)
+		{
+			LLFastTimer t(FTM_LOAD_MESH_LOD);
+			LLMeshRepoThread::LODRequest& request = mPendingRequests.front();
+			mThread->loadMeshLOD(request.mMeshParams, request.mLOD);
+			mPendingRequests.erase(mPendingRequests.begin());
+			push_count--;
+		}
+	}
+
+	//send skin info requests
+	while (!mPendingSkinRequests.empty())
+	{
+		mThread->loadMeshSkinInfo(mPendingSkinRequests.front());
+		mPendingSkinRequests.pop();
+	}
+	
+	//send decomposition requests
+	while (!mPendingDecompositionRequests.empty())
+	{
+		mThread->loadMeshDecomposition(mPendingDecompositionRequests.front());
+		mPendingDecompositionRequests.pop();
+	}
+	
+	mThread->notifyLoadedMeshes();
+
+	mThread->mMutex->unlock();
+	mMeshMutex->unlock();
+
+	mThread->mSignal->signal();
+}
+
+void LLMeshRepository::notifySkinInfoReceived(LLMeshSkinInfo& info)
+{
+	mSkinMap[info.mMeshID] = info;
+	mLoadingSkins.erase(info.mMeshID);
+}
+
+void LLMeshRepository::notifyDecompositionReceived(LLMeshDecomposition* decomp)
+{
+	mDecompositionMap[decomp->mMeshID] = decomp;
+	mLoadingDecompositions.erase(decomp->mMeshID);
+}
+
+void LLMeshRepository::notifyMeshLoaded(const LLVolumeParams& mesh_params, LLVolume* volume)
+{
+	S32 detail = LLVolumeLODGroup::getVolumeDetailFromScale(volume->getDetail());
+
+	//get list of objects waiting to be notified this mesh is loaded
+	mesh_load_map::iterator obj_iter = mLoadingMeshes[detail].find(mesh_params);
+
+	if (volume && obj_iter != mLoadingMeshes[detail].end())
+	{
+		//make sure target volume is still valid
+		if (volume->getNumVolumeFaces() <= 0)
+		{
+			llwarns << "Mesh loading returned empty volume." << llendl;
+			volume->makeTetrahedron();
+		}
+		
+		{ //update system volume
+			LLVolume* sys_volume = LLPrimitive::getVolumeManager()->refVolume(mesh_params, detail);
+			if (sys_volume)
+			{
+				sys_volume->copyVolumeFaces(volume);
+				LLPrimitive::getVolumeManager()->unrefVolume(sys_volume);
+			}
+			else
+			{
+				llwarns << "Couldn't find system volume for given mesh." << llendl;
+			}
+		}
+
+		//notify waiting LLVOVolume instances that their requested mesh is available
+		for (std::set<LLUUID>::iterator vobj_iter = obj_iter->second.begin(); vobj_iter != obj_iter->second.end(); ++vobj_iter)
+		{
+			LLVOVolume* vobj = (LLVOVolume*) gObjectList.findObject(*vobj_iter);
+			if (vobj)
+			{
+				vobj->notifyMeshLoaded();
+			}
+		}
+		
+		mLoadingMeshes[detail].erase(mesh_params);
+	}
+}
+
+void LLMeshRepository::notifyMeshUnavailable(const LLVolumeParams& mesh_params, S32 lod)
+{
+	//get list of objects waiting to be notified this mesh is loaded
+	mesh_load_map::iterator obj_iter = mLoadingMeshes[lod].find(mesh_params);
+
+	F32 detail = LLVolumeLODGroup::getVolumeScaleFromDetail(lod);
+
+	if (obj_iter != mLoadingMeshes[lod].end())
+	{
+		for (std::set<LLUUID>::iterator vobj_iter = obj_iter->second.begin(); vobj_iter != obj_iter->second.end(); ++vobj_iter)
+		{
+			LLVOVolume* vobj = (LLVOVolume*) gObjectList.findObject(*vobj_iter);
+			if (vobj)
+			{
+				LLVolume* obj_volume = vobj->getVolume();
+
+				if (obj_volume && 
+					obj_volume->getDetail() == detail &&
+					obj_volume->getParams() == mesh_params)
+				{ //should force volume to find most appropriate LOD
+					vobj->setVolume(obj_volume->getParams(), lod);
+				}
+			}
+		}
+		
+		mLoadingMeshes[lod].erase(mesh_params);
+	}
+}
+
+S32 LLMeshRepository::getActualMeshLOD(const LLVolumeParams& mesh_params, S32 lod)
+{ 
+	return mThread->getActualMeshLOD(mesh_params, lod);
+}
+
+U32 LLMeshRepository::calcResourceCost(LLSD& header)
+{
+	U32 bytes = 0;
+
+	for (U32 i = 0; i < 4; i++)
+	{
+		bytes += header[header_lod[i]]["size"].asInteger();
+	}
+
+	bytes += header["skin"]["size"].asInteger();
+
+	return bytes/4096 + 1;
+}
+
+U32 LLMeshRepository::getResourceCost(const LLUUID& mesh_id)
+{
+	return mThread->getResourceCost(mesh_id);
+}
+
+const LLMeshSkinInfo* LLMeshRepository::getSkinInfo(const LLUUID& mesh_id)
+{
+	if (mesh_id.notNull())
+	{
+		skin_map::iterator iter = mSkinMap.find(mesh_id);
+		if (iter != mSkinMap.end())
+		{
+			return &(iter->second);
+		}
+		
+		//no skin info known about given mesh, try to fetch it
+		{
+			LLMutexLock lock(mMeshMutex);
+			//add volume to list of loading meshes
+			std::set<LLUUID>::iterator iter = mLoadingSkins.find(mesh_id);
+			if (iter == mLoadingSkins.end())
+			{ //no request pending for this skin info
+				mLoadingSkins.insert(mesh_id);
+				mPendingSkinRequests.push(mesh_id);
+			}
+		}
+	}
+
+	return NULL;
+}
+
+const LLMeshDecomposition* LLMeshRepository::getDecomposition(const LLUUID& mesh_id)
+{
+	if (mesh_id.notNull())
+	{
+		decomposition_map::iterator iter = mDecompositionMap.find(mesh_id);
+		if (iter != mDecompositionMap.end())
+		{
+			return iter->second;
+		}
+		
+		//no skin info known about given mesh, try to fetch it
+		{
+			LLMutexLock lock(mMeshMutex);
+			//add volume to list of loading meshes
+			std::set<LLUUID>::iterator iter = mLoadingDecompositions.find(mesh_id);
+			if (iter == mLoadingDecompositions.end())
+			{ //no request pending for this skin info
+				mLoadingDecompositions.insert(mesh_id);
+				mPendingDecompositionRequests.push(mesh_id);
+			}
+		}
+	}
+
+	return NULL;
+}
+
+void LLMeshRepository::uploadModel(std::vector<LLModelInstance>& data, LLVector3& scale, bool upload_textures)
+{
+	LLMeshUploadThread* thread = new LLMeshUploadThread(data, scale, upload_textures);
+	mUploads.push_back(thread);
+	thread->start();
+}
+
+void LLMeshUploadThread::sendCostRequest(LLMeshUploadData& data)
+{
+	//write model file to memory buffer
+	std::stringstream ostr;
+	
+	LLModel::physics_shape& phys_shape = data.mModel[LLModel::LOD_PHYSICS].notNull() ? 
+		data.mModel[LLModel::LOD_PHYSICS]->mPhysicsShape : 
+		data.mBaseModel->mPhysicsShape;
+
+	LLSD header = LLModel::writeModel(ostr,  
+		data.mModel[LLModel::LOD_PHYSICS],
+		data.mModel[LLModel::LOD_HIGH],
+		data.mModel[LLModel::LOD_MEDIUM],
+		data.mModel[LLModel::LOD_LOW],
+		data.mModel[LLModel::LOD_IMPOSTOR], 
+		phys_shape,
+		true);
+
+	std::string desc = data.mBaseModel->mLabel;
+	
+	// Grab the total vertex count of the model
+	// along with other information for the "asset_resources" map
+	// to send to the server.
+	LLSD asset_resources = LLSD::emptyMap();
+
+
+	std::string url = mNewInventoryCapability; 
+
+	if (!url.empty())
+	{
+		LLSD body = generate_new_resource_upload_capability_body(
+			LLAssetType::AT_MESH,
+			desc,
+			desc,
+			LLFolderType::FT_MESH,
+			LLInventoryType::IT_MESH,
+			LLFloaterPerms::getNextOwnerPerms(),
+			LLFloaterPerms::getGroupPerms(),
+			LLFloaterPerms::getEveryonePerms());
+
+		body["asset_resources"] = asset_resources;
+
+		mPendingConfirmations++;
+		LLCurlRequest::headers_t headers;
+
+		data.mPostData = body;
+
+		mCurlRequest->post(url, headers, body, new LLMeshCostResponder(data, this));
+	}	
+}
+
+void LLMeshUploadThread::sendCostRequest(LLTextureUploadData& data)
+{
+	if (data.mTexture.notNull() && data.mTexture->getDiscardLevel() >= 0)
+	{
+		LLSD asset_resources = LLSD::emptyMap();
+
+		std::string url = mNewInventoryCapability; 
+
+		if (!url.empty())
+		{
+			LLSD body = generate_new_resource_upload_capability_body(
+				LLAssetType::AT_TEXTURE,
+				data.mLabel,
+				data.mLabel,
+				LLFolderType::FT_TEXTURE,
+				LLInventoryType::IT_TEXTURE,
+				LLFloaterPerms::getNextOwnerPerms(),
+				LLFloaterPerms::getGroupPerms(),
+				LLFloaterPerms::getEveryonePerms());
+
+			body["asset_resources"] = asset_resources;
+
+			mPendingConfirmations++;
+			LLCurlRequest::headers_t headers;
+			
+			data.mPostData = body;
+			mCurlRequest->post(url, headers, body, new LLTextureCostResponder(data, this));
+		}	
+	}
+}
+
+
+void LLMeshUploadThread::doUploadModel(LLMeshUploadData& data)
+{
+	if (!data.mRSVP.empty())
+	{
+		std::stringstream ostr;
+
+		LLModel::physics_shape& phys_shape = data.mModel[LLModel::LOD_PHYSICS].notNull() ? 
+		data.mModel[LLModel::LOD_PHYSICS]->mPhysicsShape : 
+		data.mBaseModel->mPhysicsShape;
+
+		LLModel::writeModel(ostr,  
+			data.mModel[LLModel::LOD_PHYSICS],
+			data.mModel[LLModel::LOD_HIGH],
+			data.mModel[LLModel::LOD_MEDIUM],
+			data.mModel[LLModel::LOD_LOW],
+			data.mModel[LLModel::LOD_IMPOSTOR], 
+			phys_shape);
+
+		data.mAssetData = ostr.str();
+
+		LLCurlRequest::headers_t headers;
+		mPendingUploads++;
+
+		mCurlRequest->post(data.mRSVP, headers, data.mAssetData, new LLMeshUploadResponder(data, this));
+	}
+}
+
+void LLMeshUploadThread::doUploadTexture(LLTextureUploadData& data)
+{
+	if (!data.mRSVP.empty())
+	{
+		std::stringstream ostr;
+		
+		if (!data.mTexture->isRawImageValid())
+		{
+			data.mTexture->reloadRawImage(data.mTexture->getDiscardLevel());
+		}
+
+		LLPointer<LLImageJ2C> upload_file = LLViewerTextureList::convertToUploadFile(data.mTexture->getRawImage());
+		
+		ostr.write((const char*) upload_file->getData(), upload_file->getDataSize());
+
+		data.mAssetData = ostr.str();
+
+		LLCurlRequest::headers_t headers;
+		mPendingUploads++;
+
+		mCurlRequest->post(data.mRSVP, headers, data.mAssetData, new LLTextureUploadResponder(data, this));
+	}
+}
+
+
+void LLMeshUploadThread::onModelUploaded(LLMeshUploadData& data)
+{
+	createObjects(data);
+}
+
+void LLMeshUploadThread::onTextureUploaded(LLTextureUploadData& data)
+{
+	mTextureMap[data.mTexture] = data;
+}
+
+
+void LLMeshUploadThread::createObjects(LLMeshUploadData& data)
+{
+	instance_list& instances = mInstance[data.mBaseModel];
+
+	for (instance_list::iterator iter = instances.begin(); iter != instances.end(); ++iter)
+	{ //create prims that reference given mesh
+		LLModelInstance& instance = *iter;
+		instance.mMeshID = data.mUUID;
+		mInstanceQ.push(instance);
+	}
+}
+
+LLSD LLMeshUploadThread::createObject(LLModelInstance& instance)
+{
+	LLMatrix4 transformation = instance.mTransform;
+
+	if (instance.mMeshID.isNull())
+	{
+		llerrs << "WTF?" << llendl;
+	}
+
+	// check for reflection
+	BOOL reflected = (transformation.determinant() < 0);
+
+	// compute position
+	LLVector3 position = LLVector3(0, 0, 0) * transformation;
+
+	// compute scale
+	LLVector3 x_transformed = LLVector3(1, 0, 0) * transformation - position;
+	LLVector3 y_transformed = LLVector3(0, 1, 0) * transformation - position;
+	LLVector3 z_transformed = LLVector3(0, 0, 1) * transformation - position;
+	F32 x_length = x_transformed.normalize();
+	F32 y_length = y_transformed.normalize();
+	F32 z_length = z_transformed.normalize();
+	LLVector3 scale = LLVector3(x_length, y_length, z_length);
+
+    // adjust for "reflected" geometry
+	LLVector3 x_transformed_reflected = x_transformed;
+	if (reflected)
+	{
+		x_transformed_reflected *= -1.0;
+	}
+	
+	// compute rotation
+	LLMatrix3 rotation_matrix;
+	rotation_matrix.setRows(x_transformed_reflected, y_transformed, z_transformed);
+	LLQuaternion quat_rotation = rotation_matrix.quaternion();
+	quat_rotation.normalize(); // the rotation_matrix might not have been orthoginal.  make it so here.
+	LLVector3 euler_rotation;
+	quat_rotation.getEulerAngles(&euler_rotation.mV[VX], &euler_rotation.mV[VY], &euler_rotation.mV[VZ]);
+
+	//
+	// build parameter block to construct this prim
+	//
+	
+	LLSD object_params;
+
+	// create prim
+
+	// set volume params
+	U8 sculpt_type = LL_SCULPT_TYPE_MESH;
+	if (reflected)
+	{
+		sculpt_type |= LL_SCULPT_FLAG_MIRROR;
+	}
+	LLVolumeParams  volume_params;
+	volume_params.setType( LL_PCODE_PROFILE_SQUARE, LL_PCODE_PATH_LINE );
+	volume_params.setBeginAndEndS( 0.f, 1.f );
+	volume_params.setBeginAndEndT( 0.f, 1.f );
+	volume_params.setRatio  ( 1, 1 );
+	volume_params.setShear  ( 0, 0 );
+	volume_params.setSculptID(instance.mMeshID, sculpt_type);
+	object_params["shape"] = volume_params.asLLSD();
+
+	object_params["material"] = LL_MCODE_WOOD;
+
+	object_params["group-id"] = gAgent.getGroupID();
+	object_params["pos"] = ll_sd_from_vector3(position + mOrigin);
+	object_params["rotation"] = ll_sd_from_quaternion(quat_rotation);
+	object_params["scale"] = ll_sd_from_vector3(scale);
+	object_params["name"] = instance.mModel->mLabel;
+
+	// load material from dae file
+	object_params["facelist"] = LLSD::emptyArray();
+	for (S32 i = 0; i < instance.mMaterial.size(); i++)
+	{
+		LLTextureEntry te;
+		LLImportMaterial& mat = instance.mMaterial[i];
+
+		te.setColor(mat.mDiffuseColor);
+
+		LLUUID diffuse_id = mTextureMap[mat.mDiffuseMap].mUUID;
+
+		if (diffuse_id.notNull())
+		{
+			te.setID(diffuse_id);
+		}
+		else
+		{
+			te.setID(LLUUID("5748decc-f629-461c-9a36-a35a221fe21f")); // blank texture
+		}
+
+		te.setFullbright(mat.mFullbright);
+
+		object_params["facelist"][i] = te.asLLSD();
+	}
+
+	// set extra parameters
+	LLSculptParams sculpt_params;
+	sculpt_params.setSculptTexture(instance.mMeshID);
+	sculpt_params.setSculptType(sculpt_type);
+	U8 buffer[MAX_OBJECT_PARAMS_SIZE+1];
+	LLDataPackerBinaryBuffer dp(buffer, MAX_OBJECT_PARAMS_SIZE);
+	sculpt_params.pack(dp);
+	std::vector<U8> v(dp.getCurrentSize());
+	memcpy(&v[0], buffer, dp.getCurrentSize());
+	LLSD extra_parameter;
+	extra_parameter["extra_parameter"] = sculpt_params.mType;
+	extra_parameter["param_data"] = v;
+	object_params["extra_parameters"].append(extra_parameter);
+
+	return object_params;
+}
+
+void LLMeshUploadThread::priceResult(LLMeshUploadData& data, const LLSD& content)
+{
+	mPendingCost += content["upload_price"].asInteger();
+	data.mRSVP = content["rsvp"].asString();
+	data.mRSVP = scrub_host_name(data.mRSVP, mHost);
+
+	mConfirmedQ.push(data);
+}
+
+void LLMeshUploadThread::priceResult(LLTextureUploadData& data, const LLSD& content)
+{
+	mPendingCost += content["upload_price"].asInteger();
+	data.mRSVP = content["rsvp"].asString();
+	data.mRSVP = scrub_host_name(data.mRSVP, mHost);
+
+	mConfirmedTextureQ.push(data);
+}
+
+
+bool LLImportMaterial::operator<(const LLImportMaterial &rhs) const
+{
+	if (mDiffuseMap != rhs.mDiffuseMap)
+	{
+		return mDiffuseMap < rhs.mDiffuseMap;
+	}
+
+	if (mDiffuseMapFilename != rhs.mDiffuseMapFilename)
+	{
+		return mDiffuseMapFilename < rhs.mDiffuseMapFilename;
+	}
+
+	if (mDiffuseMapLabel != rhs.mDiffuseMapLabel)
+	{
+		return mDiffuseMapLabel < rhs.mDiffuseMapLabel;
+	}
+
+	if (mDiffuseColor != rhs.mDiffuseColor)
+	{
+		return mDiffuseColor < rhs.mDiffuseColor;
+	}
+
+	return mFullbright < rhs.mFullbright;
+}
+
+
+void LLMeshRepository::updateInventory(inventory_data data)
+{
+	LLMutexLock lock(mMeshMutex);
+	mInventoryQ.push(data);
+}
+
+void LLMeshRepository::uploadError(LLSD& args)
+{
+	LLMutexLock lock(mMeshMutex);
+	mUploadErrorQ.push(args);
+}
+
+
+LLPhysicsDecomp::LLPhysicsDecomp()
+: LLThread("Physics Decomp")
+{
+	mInited = false;
+	mQuitting = false;
+	mDone = false;
+	mStage = -1;
+	mContinue = 1;
+
+	mSignal = new LLCondition(NULL);
+	mMutex = new LLMutex(NULL);
+
+	setStatusMessage("Idle");
+}
+
+LLPhysicsDecomp::~LLPhysicsDecomp()
+{
+	shutdown();
+}
+
+void LLPhysicsDecomp::shutdown()
+{
+	if (mSignal)
+	{
+		mQuitting = true;
+		mContinue = 0;
+		mSignal->signal();
+
+		while (!mDone)
+		{
+			apr_sleep(100);
+		}
+	}
+}
+
+void LLPhysicsDecomp::setStatusMessage(std::string msg)
+{
+	LLMutexLock lock(mMutex);
+	mStatus = msg;
+}
+
+void LLPhysicsDecomp::execute(const char* stage, LLModel* mdl)
+{
+	LLMutexLock lock(mMutex);
+
+	if (mModel.notNull())
+	{
+		llwarns << "Not done processing previous model." << llendl;
+		return;
+	}
+
+	mModel = mdl;
+	//load model into LLCD
+	if (mdl)
+	{
+		mStage = mStageID[stage];
+				
+		U16 index_offset = 0;
+
+		if (mStage == 0)
+		{
+			mPositions.clear();
+			mIndices.clear();
+			
+			//queue up vertex positions and indices
+			for (S32 i = 0; i < mdl->getNumVolumeFaces(); ++i)
+			{
+				const LLVolumeFace& face = mdl->getVolumeFace(i);
+				if (mPositions.size() + face.mNumVertices > 65535)
+				{
+					continue;
+				}
+
+				for (U32 j = 0; j < face.mNumVertices; ++j)
+				{
+					mPositions.push_back(LLVector3(face.mPositions[j].getF32ptr()));
+				}
+
+				for (U32 j = 0; j < face.mNumIndices; ++j)
+				{
+					mIndices.push_back(face.mIndices[j]+index_offset);
+				}
+
+				index_offset += face.mNumVertices;
+			}
+		}
+
+		//signal decomposition thread
+		mSignal->signal();
+	}
+}
+
+//static
+S32 LLPhysicsDecomp::llcdCallback(const char* status, S32 p1, S32 p2)
+{	
+	LLPhysicsDecomp* comp = gMeshRepo.mDecompThread;
+	comp->setStatusMessage(llformat("%s: %d/%d", status, p1, p2));
+	return comp->mContinue;
+}
+
+void LLPhysicsDecomp::cancel()
+{
+	mContinue = 0;
+}
+
+void LLPhysicsDecomp::run()
+{
+	LLConvexDecomposition::initSystem();
+	mInited = true;
+
+	while (!mQuitting)
+	{
+		mSignal->wait();
+		if (!mQuitting)
+		{
+			//load data intoLLCD
+			if (mStage == 0)
+			{
+				mMesh.mVertexBase = mPositions[0].mV;
+				mMesh.mVertexStrideBytes = 12;
+				mMesh.mNumVertices = mPositions.size();
+
+				mMesh.mIndexType = LLCDMeshData::INT_16;
+				mMesh.mIndexBase = &(mIndices[0]);
+				mMesh.mIndexStrideBytes = 6;
+				
+				mMesh.mNumTriangles = mIndices.size()/3;
+
+				LLCDResult ret = LLCD_OK;
+				if (LLConvexDecomposition::getInstance() != NULL)
+				{
+					ret  = LLConvexDecomposition::getInstance()->setMeshData(&mMesh);
+				}
+
+				if (ret)
+				{
+					llerrs << "Convex Decomposition thread valid but could not set mesh data" << llendl;
+				}
+			}
+
+			setStatusMessage("Executing.");
+
+			mContinue = 1;
+			LLCDResult ret = LLCD_OK;
+			if (LLConvexDecomposition::getInstance() != NULL)
+			{
+				ret = LLConvexDecomposition::getInstance()->executeStage(mStage);
+			}
+
+			mContinue = 0;
+			if (ret)
+			{
+				llerrs << "Convex Decomposition thread valid but could not execute stage " << mStage << llendl;
+			}
+
+
+			setStatusMessage("Reading results");
+
+			S32 num_hulls =0;
+			if (LLConvexDecomposition::getInstance() != NULL)
+			{
+				num_hulls = LLConvexDecomposition::getInstance()->getNumHullsFromStage(mStage);
+			}
+			
+			if (mModel.isNull())
+			{
+				llerrs << "mModel should never be null here!" << llendl;
+			}
+
+			mMutex->lock();
+			mModel->mPhysicsShape.clear();
+			mModel->mPhysicsShape.resize(num_hulls);
+			mModel->mHullCenter.clear();
+			mModel->mHullCenter.resize(num_hulls);
+			std::vector<LLPointer<LLVertexBuffer> > mesh_buffer;
+			mesh_buffer.resize(num_hulls);
+			mModel->mPhysicsCenter.clearVec();
+			mModel->mPhysicsPoints = 0;
+			mMutex->unlock();
+
+			for (S32 i = 0; i < num_hulls; ++i)
+			{
+				std::vector<LLVector3> p;
+				LLCDHull hull;
+				// if LLConvexDecomposition is a stub, num_hulls should have been set to 0 above, and we should not reach this code
+				LLConvexDecomposition::getInstance()->getHullFromStage(mStage, i, &hull);
+
+				const F32* v = hull.mVertexBase;
+
+				LLVector3 hull_center;
+
+				for (S32 j = 0; j < hull.mNumVertices; ++j)
+				{
+					LLVector3 vert(v[0], v[1], v[2]); 
+					p.push_back(vert);
+					hull_center += vert;
+					v = (F32*) (((U8*) v) + hull.mVertexStrideBytes);
+				}
+
+				
+				hull_center *= 1.f/hull.mNumVertices;
+
+				LLCDMeshData mesh;
+				// if LLConvexDecomposition is a stub, num_hulls should have been set to 0 above, and we should not reach this code
+				LLConvexDecomposition::getInstance()->getMeshFromStage(mStage, i, &mesh);
+
+				mesh_buffer[i] = get_vertex_buffer_from_mesh(mesh);
+
+				mMutex->lock();
+				mModel->mPhysicsShape[i] = p;
+				mModel->mHullCenter[i] = hull_center;
+				mModel->mPhysicsPoints += hull.mNumVertices;
+				mModel->mPhysicsCenter += hull_center;
+
+				mMutex->unlock();
+			}
+
+			{
+				LLMutexLock lock(mMutex);
+				mModel->mPhysicsCenter *= 1.f/mModel->mPhysicsPoints;
+			
+				LLFloaterModelPreview::onModelDecompositionComplete(mModel, mesh_buffer);
+				//done updating model
+				mModel = NULL;
+			}
+
+			setStatusMessage("Done.");
+			LLFloaterModelPreview::sInstance->mModelPreview->refresh();
+		}
+	}
+
+	LLConvexDecomposition::quitSystem();
+
+	//delete mSignal;
+	delete mMutex;
+	mSignal = NULL;
+	mMutex = NULL;
+	mDone = true;
+}
+
+#endif
+
diff --git a/indra/newview/llmeshrepository.h b/indra/newview/llmeshrepository.h
new file mode 100644
index 0000000000..d5e21c35cc
--- /dev/null
+++ b/indra/newview/llmeshrepository.h
@@ -0,0 +1,471 @@
+/** 
+ * @file llmeshrepository.h
+ * @brief Client-side repository of mesh assets.
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ * 
+ * Copyright (c) 2001-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_MESH_REPOSITORY_H
+#define LL_MESH_REPOSITORY_H
+
+#include "llassettype.h"
+#include "llmodel.h"
+#include "lluuid.h"
+#include "llviewertexture.h"
+#include "llvolume.h"
+
+#if LL_MESH_ENABLED
+
+#define LLCONVEXDECOMPINTER_STATIC 1
+
+#include "llconvexdecomposition.h"
+
+class LLVOVolume;
+class LLMeshResponder;
+class LLCurlRequest;
+class LLMutex;
+class LLCondition;
+class LLVFS;
+class LLMeshRepository;
+
+class LLMeshUploadData
+{
+public:
+	LLPointer<LLModel> mBaseModel;
+	LLPointer<LLModel> mModel[5];
+	LLUUID mUUID;
+	U32 mRetries;
+	std::string mRSVP;
+	std::string mAssetData;
+	LLSD mPostData;
+
+	LLMeshUploadData()
+	{
+		mRetries = 0;
+	}
+};
+
+class LLTextureUploadData
+{
+public:
+	LLPointer<LLViewerFetchedTexture> mTexture;
+	LLUUID mUUID;
+	std::string mRSVP;
+	std::string mLabel;
+	U32 mRetries;
+	std::string mAssetData;
+	LLSD mPostData;
+
+	LLTextureUploadData()
+	{
+		mRetries = 0;
+	}
+
+	LLTextureUploadData(LLViewerFetchedTexture* texture, std::string& label)
+		: mTexture(texture), mLabel(label)
+	{
+		mRetries = 0;
+	}
+};
+
+class LLImportMaterial
+{
+public:
+	LLPointer<LLViewerFetchedTexture> mDiffuseMap;
+	std::string mDiffuseMapFilename;
+	std::string mDiffuseMapLabel;
+	LLColor4 mDiffuseColor;
+	bool mFullbright;
+
+	bool operator<(const LLImportMaterial &params) const;
+
+	LLImportMaterial() 
+		: mFullbright(false) 
+	{ 
+		mDiffuseColor.set(1,1,1,1);
+	}
+};
+
+class LLModelInstance 
+{
+public:
+	LLPointer<LLModel> mModel;
+	LLPointer<LLModel> mLOD[5];
+	 
+	LLUUID mMeshID;
+
+	LLMatrix4 mTransform;
+	std::vector<LLImportMaterial> mMaterial;
+
+	LLModelInstance(LLModel* model, LLMatrix4& transform, std::vector<LLImportMaterial>& materials)
+		: mModel(model), mTransform(transform), mMaterial(materials)
+	{
+	}
+};
+
+class LLMeshSkinInfo 
+{
+public:
+	LLUUID mMeshID;
+	std::vector<std::string> mJointNames;
+	std::vector<LLMatrix4> mInvBindMatrix;
+	LLMatrix4 mBindShapeMatrix;
+};
+
+class LLMeshDecomposition
+{
+public:
+	LLMeshDecomposition() { }
+
+	LLUUID mMeshID;
+	LLModel::physics_shape mHull;
+
+	std::vector<LLPointer<LLVertexBuffer> > mMesh;
+};
+
+class LLPhysicsDecomp : public LLThread
+{
+public:
+	LLCondition* mSignal;
+	LLMutex* mMutex;
+	
+	LLCDMeshData mMesh;
+	
+	bool mInited;
+	bool mQuitting;
+	bool mDone;
+
+	S32 mContinue;
+	std::string mStatus;
+
+	std::vector<LLVector3> mPositions;
+	std::vector<U16> mIndices;
+
+	S32 mStage;
+
+	LLPhysicsDecomp();
+	~LLPhysicsDecomp();
+
+	void shutdown();
+	void setStatusMessage(std::string msg);
+	
+	void execute(const char* stage, LLModel* mdl);
+	static S32 llcdCallback(const char*, S32, S32);
+	void cancel();
+
+	virtual void run();
+
+	std::map<std::string, S32> mStageID;
+	LLPointer<LLModel> mModel;
+};
+
+class LLMeshRepoThread : public LLThread
+{
+public:
+
+	static S32 sActiveHeaderRequests;
+	static S32 sActiveLODRequests;
+	static U32 sMaxConcurrentRequests;
+
+	LLCurlRequest* mCurlRequest;
+	LLMutex*	mMutex;
+	LLMutex*	mHeaderMutex;
+	LLCondition* mSignal;
+
+	bool mWaiting;
+
+	//map of known mesh headers
+	typedef std::map<LLUUID, LLSD> mesh_header_map;
+	mesh_header_map mMeshHeader;
+	
+	std::map<LLUUID, U32> mMeshHeaderSize;
+	std::map<LLUUID, U32> mMeshResourceCost;
+
+	class HeaderRequest
+	{ 
+	public:
+		const LLVolumeParams mMeshParams;
+
+		HeaderRequest(const LLVolumeParams&  mesh_params)
+			: mMeshParams(mesh_params)
+		{
+		}
+
+		bool operator<(const HeaderRequest& rhs) const
+		{
+			return mMeshParams < rhs.mMeshParams;
+		}
+	};
+
+	class LODRequest
+	{
+	public:
+		LLVolumeParams  mMeshParams;
+		S32 mLOD;
+		F32 mScore;
+
+		LODRequest(const LLVolumeParams&  mesh_params, S32 lod)
+			: mMeshParams(mesh_params), mLOD(lod), mScore(0.f)
+		{
+		}
+	};
+
+	struct CompareScoreGreater
+	{
+		bool operator()(const LODRequest& lhs, const LODRequest& rhs)
+		{
+			return lhs.mScore > rhs.mScore; // greatest = first
+		}
+	};
+	
+
+	class LoadedMesh
+	{
+	public:
+		LLPointer<LLVolume> mVolume;
+		LLVolumeParams mMeshParams;
+		S32 mLOD;
+
+		LoadedMesh(LLVolume* volume, const LLVolumeParams&  mesh_params, S32 lod)
+			: mVolume(volume), mMeshParams(mesh_params), mLOD(lod)
+		{
+		}
+
+	};
+
+	//set of requested skin info
+	std::set<LLUUID> mSkinRequests;
+	
+	//queue of completed skin info requests
+	std::queue<LLMeshSkinInfo> mSkinInfoQ;
+
+	//set of requested decompositions
+	std::set<LLUUID> mDecompositionRequests;
+	
+	//queue of completed Decomposition info requests
+	std::queue<LLMeshDecomposition*> mDecompositionQ;
+
+	//queue of requested headers
+	std::queue<HeaderRequest> mHeaderReqQ;
+
+	//queue of requested LODs
+	std::queue<LODRequest> mLODReqQ;
+
+	//queue of unavailable LODs (either asset doesn't exist or asset doesn't have desired LOD)
+	std::queue<LODRequest> mUnavailableQ;
+
+	//queue of successfully loaded meshes
+	std::queue<LoadedMesh> mLoadedQ;
+
+	//map of pending header requests and currently desired LODs
+	typedef std::map<LLVolumeParams, std::vector<S32> > pending_lod_map;
+	pending_lod_map mPendingLOD;
+
+	static std::string constructUrl(LLUUID mesh_id);
+
+	LLMeshRepoThread();
+	~LLMeshRepoThread();
+
+	virtual void run();
+
+	void loadMeshLOD(const LLVolumeParams& mesh_params, S32 lod);
+	bool fetchMeshHeader(const LLVolumeParams& mesh_params);
+	bool fetchMeshLOD(const LLVolumeParams& mesh_params, S32 lod);
+	bool headerReceived(const LLVolumeParams& mesh_params, U8* data, S32 data_size);
+	bool lodReceived(const LLVolumeParams& mesh_params, S32 lod, U8* data, S32 data_size);
+	bool skinInfoReceived(const LLUUID& mesh_id, U8* data, S32 data_size);
+	bool decompositionReceived(const LLUUID& mesh_id, U8* data, S32 data_size);
+
+	void notifyLoadedMeshes();
+	S32 getActualMeshLOD(const LLVolumeParams& mesh_params, S32 lod);
+	U32 getResourceCost(const LLUUID& mesh_params);
+
+	void loadMeshSkinInfo(const LLUUID& mesh_id);
+	void loadMeshDecomposition(const LLUUID& mesh_id);
+
+	//send request for skin info, returns true if header info exists 
+	//  (should hold onto mesh_id and try again later if header info does not exist)
+	bool fetchMeshSkinInfo(const LLUUID& mesh_id);
+
+	//send request for decomposition, returns true if header info exists 
+	//  (should hold onto mesh_id and try again later if header info does not exist)
+	bool fetchMeshDecomposition(const LLUUID& mesh_id);
+};
+
+class LLMeshUploadThread : public LLThread 
+{
+public:
+	typedef std::vector<LLModelInstance> instance_list;
+	instance_list mInstanceList;
+
+	typedef std::map<LLPointer<LLModel>, instance_list> instance_map;
+	instance_map mInstance;
+
+	LLMutex*					mMutex;
+	LLCurlRequest* mCurlRequest;
+	S32				mPendingConfirmations;
+	S32				mPendingUploads;
+	S32				mPendingCost;
+	bool			mFinished;
+	LLVector3		mOrigin;
+	bool			mUploadTextures;
+
+	LLHost			mHost;
+	std::string		mUploadObjectAssetCapability;
+	std::string		mNewInventoryCapability;
+
+	std::queue<LLMeshUploadData> mUploadQ;
+	std::queue<LLMeshUploadData> mConfirmedQ;
+	std::queue<LLModelInstance> mInstanceQ;
+
+	std::queue<LLTextureUploadData> mTextureQ;
+	std::queue<LLTextureUploadData> mConfirmedTextureQ;
+
+	std::map<LLPointer<LLViewerFetchedTexture>, LLTextureUploadData> mTextureMap;
+
+	LLMeshUploadThread(instance_list& data, LLVector3& scale, bool upload_textures);
+	~LLMeshUploadThread();
+
+	void uploadTexture(LLTextureUploadData& data);
+	void doUploadTexture(LLTextureUploadData& data);
+	void sendCostRequest(LLTextureUploadData& data);
+	void priceResult(LLTextureUploadData& data, const LLSD& content);
+	void onTextureUploaded(LLTextureUploadData& data);
+
+	void uploadModel(LLMeshUploadData& data);
+	void sendCostRequest(LLMeshUploadData& data);
+	void doUploadModel(LLMeshUploadData& data);
+	void onModelUploaded(LLMeshUploadData& data);
+	void createObjects(LLMeshUploadData& data);
+	LLSD createObject(LLModelInstance& instance);
+	void priceResult(LLMeshUploadData& data, const LLSD& content);
+
+	bool finished() { return mFinished; }
+	virtual void run();
+	
+};
+
+class LLMeshRepository
+{
+public:
+
+	//metrics
+	static U32 sBytesReceived;
+	static U32 sHTTPRequestCount;
+	static U32 sHTTPRetryCount;
+	static U32 sCacheBytesRead;
+	static U32 sCacheBytesWritten;
+	static U32 sPeakKbps;
+	
+
+	LLMeshRepository();
+
+	void init();
+	void shutdown();
+
+	//mesh management functions
+	S32 loadMesh(LLVOVolume* volume, const LLVolumeParams& mesh_params, S32 detail = 0);
+	
+	void notifyLoadedMeshes();
+	void notifyMeshLoaded(const LLVolumeParams& mesh_params, LLVolume* volume);
+	void notifyMeshUnavailable(const LLVolumeParams& mesh_params, S32 lod);
+	void notifySkinInfoReceived(LLMeshSkinInfo& info);
+	void notifyDecompositionReceived(LLMeshDecomposition* info);
+
+	S32 getActualMeshLOD(const LLVolumeParams& mesh_params, S32 lod);
+	U32 calcResourceCost(LLSD& header);
+	U32 getResourceCost(const LLUUID& mesh_params);
+	const LLMeshSkinInfo* getSkinInfo(const LLUUID& mesh_id);
+	const LLMeshDecomposition* getDecomposition(const LLUUID& mesh_id);
+
+	void uploadModel(std::vector<LLModelInstance>& data, LLVector3& scale, bool upload_textures);
+
+	
+
+
+	typedef std::map<LLVolumeParams, std::set<LLUUID> > mesh_load_map;
+	mesh_load_map mLoadingMeshes[4];
+	
+	typedef std::map<LLUUID, LLMeshSkinInfo> skin_map;
+	skin_map mSkinMap;
+
+	typedef std::map<LLUUID, LLMeshDecomposition*> decomposition_map;
+	decomposition_map mDecompositionMap;
+
+	LLMutex*					mMeshMutex;
+	
+	std::vector<LLMeshRepoThread::LODRequest> mPendingRequests;
+	
+	//list of mesh ids awaiting skin info
+	std::set<LLUUID> mLoadingSkins;
+
+	//list of mesh ids that need to send skin info fetch requests
+	std::queue<LLUUID> mPendingSkinRequests;
+
+	//list of mesh ids awaiting decompositions
+	std::set<LLUUID> mLoadingDecompositions;
+
+	//list of mesh ids that need to send decomposition fetch requests
+	std::queue<LLUUID> mPendingDecompositionRequests;
+	
+	U32 mMeshThreadCount;
+
+	void cacheOutgoingMesh(LLMeshUploadData& data, LLSD& header);
+	
+	LLMeshRepoThread* mThread;
+	std::vector<LLMeshUploadThread*> mUploads;
+
+	LLPhysicsDecomp* mDecompThread;
+	
+	class inventory_data
+	{
+	public:
+		LLSD mPostData;
+		LLSD mResponse;
+
+		inventory_data(const LLSD& data, const LLSD& content)
+			: mPostData(data), mResponse(content)
+		{
+		}
+	};
+
+	std::queue<inventory_data> mInventoryQ;
+
+	std::queue<LLSD> mUploadErrorQ;
+
+	void uploadError(LLSD& args);
+	void updateInventory(inventory_data data);
+
+};
+
+extern LLMeshRepository gMeshRepo;
+
+#endif
+
+#endif
+