7 files changed, 79 insertions, 17 deletions
diff --git a/indra/llmath/llcamera.cpp b/indra/llmath/llcamera.cpp
index bad4d00fd6..687c1a7d45 100644
--- a/indra/llmath/llcamera.cpp
+++ b/indra/llmath/llcamera.cpp
@@ -703,6 +703,7 @@ void LLCamera::calculateFrustumPlanes(F32 left, F32 right, F32 top, F32 bottom)
 	mLocalPlanes[PLANE_BOTTOM].setVec( a, c, b); 
 
 	//calculate center and radius squared of frustum in world absolute coordinates
+	static LLVector3 const X_AXIS(1.f, 0.f, 0.f);
 	mFrustCenter = X_AXIS*mFarPlane*0.5f;
 	mFrustCenter = transformToAbsolute(mFrustCenter);
 	mFrustRadiusSquared = mFarPlane*0.5f;
diff --git a/indra/llmath/llcamera.h b/indra/llmath/llcamera.h
index 922d6f9fac..531144db39 100644
--- a/indra/llmath/llcamera.h
+++ b/indra/llmath/llcamera.h
@@ -50,15 +50,6 @@ const F32 MIN_FAR_PLANE 	= 0.2f;
 static const F32 MIN_FIELD_OF_VIEW = 5.0f * DEG_TO_RAD;
 static const F32 MAX_FIELD_OF_VIEW = 175.f * DEG_TO_RAD;
 
-static const LLVector3 X_AXIS(1.f,0.f,0.f);
-static const LLVector3 Y_AXIS(0.f,1.f,0.f);
-static const LLVector3 Z_AXIS(0.f,0.f,1.f);
-
-static const LLVector3 NEG_X_AXIS(-1.f,0.f,0.f);
-static const LLVector3 NEG_Y_AXIS(0.f,-1.f,0.f);
-static const LLVector3 NEG_Z_AXIS(0.f,0.f,-1.f);
-
-
 // An LLCamera is an LLCoorFrame with a view frustum.
 // This means that it has several methods for moving it around 
 // that are inherited from the LLCoordFrame() class :
diff --git a/indra/llmath/llvolume.cpp b/indra/llmath/llvolume.cpp
index 14e1ca8d43..71b92962fb 100644
--- a/indra/llmath/llvolume.cpp
+++ b/indra/llmath/llvolume.cpp
@@ -4406,19 +4406,54 @@ std::ostream& operator<<(std::ostream &s, const LLVolume *volumep)
 
 BOOL LLVolumeFace::create(LLVolume* volume, BOOL partial_build)
 {
+	BOOL ret = FALSE ;
 	if (mTypeMask & CAP_MASK)
 	{
-		return createCap(volume, partial_build);
+		ret = createCap(volume, partial_build);
 	}
 	else if ((mTypeMask & END_MASK) || (mTypeMask & SIDE_MASK))
 	{
-		return createSide(volume, partial_build);
+		ret = createSide(volume, partial_build);
 	}
 	else
 	{
 		llerrs << "Unknown/uninitialized face type!" << llendl;
-		return FALSE;
 	}
+
+	//update the range of the texture coordinates
+	if(ret)
+	{
+		mTexCoordExtents[0].setVec(1.f, 1.f) ;
+		mTexCoordExtents[1].setVec(0.f, 0.f) ;
+
+		U32 end = mVertices.size() ;
+		for(U32 i = 0 ; i < end ; i++)
+		{
+			if(mTexCoordExtents[0].mV[0] > mVertices[i].mTexCoord.mV[0])
+			{
+				mTexCoordExtents[0].mV[0] = mVertices[i].mTexCoord.mV[0] ;
+			}
+			if(mTexCoordExtents[1].mV[0] < mVertices[i].mTexCoord.mV[0])
+			{
+				mTexCoordExtents[1].mV[0] = mVertices[i].mTexCoord.mV[0] ;
+			}
+
+			if(mTexCoordExtents[0].mV[1] > mVertices[i].mTexCoord.mV[1])
+			{
+				mTexCoordExtents[0].mV[1] = mVertices[i].mTexCoord.mV[1] ;
+			}
+			if(mTexCoordExtents[1].mV[1] < mVertices[i].mTexCoord.mV[1])
+			{
+				mTexCoordExtents[1].mV[1] = mVertices[i].mTexCoord.mV[1] ;
+			}			
+		}
+		mTexCoordExtents[0].mV[0] = llmax(0.f, mTexCoordExtents[0].mV[0]) ;
+		mTexCoordExtents[0].mV[1] = llmax(0.f, mTexCoordExtents[0].mV[1]) ;
+		mTexCoordExtents[1].mV[0] = llmin(1.f, mTexCoordExtents[1].mV[0]) ;
+		mTexCoordExtents[1].mV[1] = llmin(1.f, mTexCoordExtents[1].mV[1]) ;
+	}
+
+	return ret ;
 }
 
 void	LerpPlanarVertex(LLVolumeFace::VertexData& v0,
diff --git a/indra/llmath/llvolume.h b/indra/llmath/llvolume.h
index d48a79ee46..28b9895ff3 100644
--- a/indra/llmath/llvolume.h
+++ b/indra/llmath/llvolume.h
@@ -831,6 +831,7 @@ public:
 	S32 mNumT;
 
 	LLVector3 mExtents[2]; //minimum and maximum point of face
+	LLVector2 mTexCoordExtents[2]; //minimum and maximum of texture coordinates of the face.
 
 	std::vector<VertexData> mVertices;
 	std::vector<U16>	mIndices;
diff --git a/indra/llmath/tests/m3math_test.cpp b/indra/llmath/tests/m3math_test.cpp
index 622ee28288..1ca2b005d9 100644
--- a/indra/llmath/tests/m3math_test.cpp
+++ b/indra/llmath/tests/m3math_test.cpp
@@ -36,11 +36,16 @@
 #include "../v3dmath.h"
 
 #include "../test/lltut.h"
-
-#if LL_WINDOWS
-// disable unreachable code warnings caused by usage of skip.
-#pragma warning(disable: 4702)
-#endif
+
+#if LL_WINDOWS
+// disable unreachable code warnings caused by usage of skip.
+#pragma warning(disable: 4702)
+#endif
+
+#if LL_WINDOWS
+// disable unreachable code warnings caused by usage of skip.
+#pragma warning(disable: 4702)
+#endif
 
 namespace tut
 {
diff --git a/indra/llmath/v3math.cpp b/indra/llmath/v3math.cpp
index fd08df02d8..18b15e08c4 100644
--- a/indra/llmath/v3math.cpp
+++ b/indra/llmath/v3math.cpp
@@ -134,6 +134,21 @@ BOOL LLVector3::clampLength( F32 length_limit )
 	return changed;
 }
 
+BOOL LLVector3::clamp(const LLVector3 &min_vec, const LLVector3 &max_vec)
+{
+	BOOL ret = FALSE;
+
+	if (mV[0] < min_vec[0]) { mV[0] = min_vec[0]; ret = TRUE; }
+	if (mV[1] < min_vec[1]) { mV[1] = min_vec[1]; ret = TRUE; }
+	if (mV[2] < min_vec[2]) { mV[2] = min_vec[2]; ret = TRUE; }
+
+	if (mV[0] > max_vec[0]) { mV[0] = max_vec[0]; ret = TRUE; }
+	if (mV[1] > max_vec[1]) { mV[1] = max_vec[1]; ret = TRUE; }
+	if (mV[2] > max_vec[2]) { mV[2] = max_vec[2]; ret = TRUE; }
+
+	return ret;
+}
+
 
 // Sets all values to absolute value of their original values
 // Returns TRUE if data changed
diff --git a/indra/llmath/v3math.h b/indra/llmath/v3math.h
index dbd38c1c3f..4b3efe7394 100644
--- a/indra/llmath/v3math.h
+++ b/indra/llmath/v3math.h
@@ -69,6 +69,7 @@ class LLVector3
 
 		inline BOOL isFinite() const;									// checks to see if all values of LLVector3 are finite
 		BOOL		clamp(F32 min, F32 max);		// Clamps all values to (min,max), returns TRUE if data changed
+		BOOL		clamp(const LLVector3 &min_vec, const LLVector3 &max_vec); // Scales vector by another vector
 		BOOL		clampLength( F32 length_limit );					// Scales vector to limit length to a value
 
 		void		quantize16(F32 lowerxy, F32 upperxy, F32 lowerz, F32 upperz);	// changes the vector to reflect quatization
@@ -156,6 +157,8 @@ F32	dist_vec(const LLVector3 &a, const LLVector3 &b);		// Returns distance betwe
 F32	dist_vec_squared(const LLVector3 &a, const LLVector3 &b);// Returns distance squared between a and b
 F32	dist_vec_squared2D(const LLVector3 &a, const LLVector3 &b);// Returns distance squared between a and b ignoring Z component
 LLVector3 projected_vec(const LLVector3 &a, const LLVector3 &b); // Returns vector a projected on vector b
+LLVector3 parallel_component(const LLVector3 &a, const LLVector3 &b); // Returns vector a projected on vector b (same as projected_vec)
+LLVector3 orthogonal_component(const LLVector3 &a, const LLVector3 &b); // Returns component of vector a not parallel to vector b (same as projected_vec)
 LLVector3 lerp(const LLVector3 &a, const LLVector3 &b, F32 u); // Returns a vector that is a linear interpolation between a and b
 
 inline LLVector3::LLVector3(void)
@@ -490,6 +493,17 @@ inline LLVector3 projected_vec(const LLVector3 &a, const LLVector3 &b)
 	return project_axis * (a * project_axis);
 }
 
+inline LLVector3 parallel_component(const LLVector3 &a, const LLVector3 &b)
+{
+	return projected_vec(a, b);
+}
+
+inline LLVector3 orthogonal_component(const LLVector3 &a, const LLVector3 &b)
+{
+	return a - projected_vec(a, b);
+}
+
+
 inline LLVector3 lerp(const LLVector3 &a, const LLVector3 &b, F32 u)
 {
 	return LLVector3(