diff options
Diffstat (limited to 'indra/llmath')
| -rw-r--r-- | indra/llmath/llvolume.cpp | 4 | ||||
| -rw-r--r-- | indra/llmath/llvolume.h | 16 |
2 files changed, 13 insertions, 7 deletions
diff --git a/indra/llmath/llvolume.cpp b/indra/llmath/llvolume.cpp index e085fa6ada..b036ece71e 100644 --- a/indra/llmath/llvolume.cpp +++ b/indra/llmath/llvolume.cpp @@ -6327,9 +6327,9 @@ void LLVolumeFace::resizeVertices(S32 num_verts) if (num_verts) { //pad texture coordinate block end to allow for QWORD reads - S32 size = ((num_verts*sizeof(LLVector2)) + 0xF) & ~0xF; + S32 tc_size = ((num_verts*sizeof(LLVector2)) + 0xF) & ~0xF; - mPositions = (LLVector4a*) ll_aligned_malloc<64>(sizeof(LLVector4a)*2*num_verts+size); + mPositions = (LLVector4a*) ll_aligned_malloc<64>(sizeof(LLVector4a)*2*num_verts+tc_size); mNormals = mPositions+num_verts; mTexCoords = (LLVector2*) (mNormals+num_verts); diff --git a/indra/llmath/llvolume.h b/indra/llmath/llvolume.h index a77e8c08c6..c0b224b1ff 100644 --- a/indra/llmath/llvolume.h +++ b/indra/llmath/llvolume.h @@ -936,17 +936,23 @@ public: LLVector4a* mCenter; LLVector2 mTexCoordExtents[2]; //minimum and maximum of texture coordinates of the face. - S32 mNumVertices; + S32 mNumVertices; // num vertices == num normals == num texcoords S32 mNumAllocatedVertices; S32 mNumIndices; - LLVector4a* mPositions; - LLVector4a* mNormals; + LLVector4a* mPositions; // Contains vertices, nortmals and texcoords + LLVector4a* mNormals; // pointer into mPositions LLVector4a* mTangents; - LLVector2* mTexCoords; + LLVector2* mTexCoords; // pointer into mPositions + + // mIndices contains mNumIndices amount of elements. + // It contains triangles, each 3 indices describe one triangle. + // If mIndices contains {0, 2, 3, 1, 2, 4}, it means there + // are two triangles {0, 2, 3} and {1, 2, 4} with values being + // indexes for mPositions/mNormals/mTexCoords U16* mIndices; - //vertex buffer filled in by LLFace to cache this volume face geometry in vram + // vertex buffer filled in by LLFace to cache this volume face geometry in vram // (declared as a LLPointer to LLRefCount to avoid dependency on LLVertexBuffer) mutable LLPointer<LLRefCount> mVertexBuffer; |