diff options
Diffstat (limited to 'indra/llmath/llvolume.cpp')
| -rw-r--r-- | indra/llmath/llvolume.cpp | 37 |
1 files changed, 29 insertions, 8 deletions
diff --git a/indra/llmath/llvolume.cpp b/indra/llmath/llvolume.cpp index 9eecb7bfe2..8c81f27784 100644 --- a/indra/llmath/llvolume.cpp +++ b/indra/llmath/llvolume.cpp @@ -2419,12 +2419,25 @@ bool LLVolume::unpackVolumeFaces(std::istream& is, S32 size) for (U32 i = 0; i < face_count; ++i) { + LLVolumeFace& face = mVolumeFaces[i]; + + if (mdl[i].has("NoGeometry")) + { //face has no geometry, continue + face.resizeIndices(3); + face.resizeVertices(1); + memset(face.mPositions, 0, sizeof(LLVector4a)); + memset(face.mNormals, 0, sizeof(LLVector4a)); + memset(face.mTexCoords, 0, sizeof(LLVector2)); + memset(face.mIndices, 0, sizeof(U16)*3); + continue; + } + LLSD::Binary pos = mdl[i]["Position"]; LLSD::Binary norm = mdl[i]["Normal"]; LLSD::Binary tc = mdl[i]["TexCoord0"]; LLSD::Binary idx = mdl[i]["TriangleList"]; - LLVolumeFace& face = mVolumeFaces[i]; + //copy out indices face.resizeIndices(idx.size()/2); @@ -2629,14 +2642,20 @@ bool LLVolume::unpackVolumeFaces(std::istream& is, S32 size) LLVector4a& min = face.mExtents[0]; LLVector4a& max = face.mExtents[1]; - min.clear(); - max.clear(); - min = max = face.mPositions[0]; - - for (S32 i = 1; i < face.mNumVertices; ++i) + if (face.mNumVertices < 3) + { //empty face, use a dummy 1cm (at 1m scale) bounding box + min.splat(-0.005f); + max.splat(0.005f); + } + else { - min.setMin(min, face.mPositions[i]); - max.setMax(max, face.mPositions[i]); + min = max = face.mPositions[0]; + + for (S32 i = 1; i < face.mNumVertices; ++i) + { + min.setMin(min, face.mPositions[i]); + max.setMax(max, face.mPositions[i]); + } } } } @@ -5493,6 +5512,8 @@ LLVolumeFace::LLVolumeFace() : mOctree(NULL) { mExtents = (LLVector4a*) ll_aligned_malloc_16(sizeof(LLVector4a)*3); + mExtents[0].splat(-0.5f); + mExtents[1].splat(0.5f); mCenter = mExtents+2; } |