Merge

2 files changed, 40 insertions, 1 deletions

diff --git a/indra/llprimitive/llmodel.cpp b/indra/llprimitive/llmodel.cpp
index ef6eb75a6b..e236f98fe6 100755
--- a/indra/llprimitive/llmodel.cpp
+++ b/indra/llprimitive/llmodel.cpp
@@ -1122,6 +1122,43 @@ void LLModel::getNormalizedScaleTranslation(LLVector3& scale_out, LLVector3& tra
 	translation_out = mNormalizedTranslation;
 }
 
+LLVector3 LLModel::getTransformedCenter(const LLMatrix4& mat)
+{
+	LLVector3 ret;
+
+	if (!mVolumeFaces.empty())
+	{
+		LLMatrix4a m;
+		m.loadu(mat);
+
+		LLVector4a minv,maxv;
+
+		LLVector4a t;
+		m.affineTransform(mVolumeFaces[0].mPositions[0], t);
+		minv = maxv = t;
+
+		for (S32 i = 0; i < mVolumeFaces.size(); ++i)
+		{
+			LLVolumeFace& face = mVolumeFaces[i];
+
+			for (U32 j = 0; j < face.mNumVertices; ++j)
+			{
+				m.affineTransform(face.mPositions[j],t);
+				update_min_max(minv, maxv, t);
+			}
+		}
+
+		minv.add(maxv);
+		minv.mul(0.5f);
+
+		ret.set(minv.getF32ptr());
+	}
+
+	return ret;
+}
+
+
+
 void LLModel::setNumVolumeFaces(S32 count)
 {
 	mVolumeFaces.resize(count);
diff --git a/indra/llprimitive/llmodel.h b/indra/llprimitive/llmodel.h
index 1cf528fd9f..aaafc55258 100755
--- a/indra/llprimitive/llmodel.h
+++ b/indra/llprimitive/llmodel.h
@@ -173,13 +173,15 @@ public:
 	void optimizeVolumeFaces();
 	void offsetMesh( const LLVector3& pivotPoint );
 	void getNormalizedScaleTranslation(LLVector3& scale_out, LLVector3& translation_out);
-	
+	LLVector3 getTransformedCenter(const LLMatrix4& mat);
+
 	//reorder face list based on mMaterialList in this and reference so 
 	//order matches that of reference (material ordering touchup)
 	bool matchMaterialOrder(LLModel* ref, int& refFaceCnt, int& modelFaceCnt );
 	bool isMaterialListSubset( LLModel* ref );
 	bool needToAddFaces( LLModel* ref, int& refFaceCnt, int& modelFaceCnt );
 	
+	
 	std::vector<std::string> mMaterialList;
 
 	//data used for skin weights