diff options
| -rw-r--r-- | indra/llmath/llvolume.cpp | 51 |
1 files changed, 29 insertions, 22 deletions
diff --git a/indra/llmath/llvolume.cpp b/indra/llmath/llvolume.cpp index 7a694ab10c..2a906c8d41 100644 --- a/indra/llmath/llvolume.cpp +++ b/indra/llmath/llvolume.cpp @@ -5574,37 +5574,44 @@ bool LLVolumeFace::cacheOptimize(bool gen_tangents) U32 vert_count = meshopt_generateVertexRemapMulti(&remap[0], nullptr, data.p.size(), data.p.size(), mos, stream_count); - std::vector<U32> indices; - indices.resize(mNumIndices); + if (vert_count < 65535) + { + std::vector<U32> indices; + indices.resize(mNumIndices); - //copy results back into volume - resizeVertices(vert_count); + //copy results back into volume + resizeVertices(vert_count); - if (!data.w.empty()) - { - allocateWeights(vert_count); - } + if (!data.w.empty()) + { + allocateWeights(vert_count); + } - allocateTangents(mNumVertices); + allocateTangents(mNumVertices); - for (int i = 0; i < mNumIndices; ++i) - { - U32 src_idx = i; - U32 dst_idx = remap[i]; - mIndices[i] = dst_idx; + for (int i = 0; i < mNumIndices; ++i) + { + U32 src_idx = i; + U32 dst_idx = remap[i]; + mIndices[i] = dst_idx; - mPositions[dst_idx].load3(data.p[src_idx].mV); - mNormals[dst_idx].load3(data.n[src_idx].mV); - mTexCoords[dst_idx] = data.tc[src_idx]; + mPositions[dst_idx].load3(data.p[src_idx].mV); + mNormals[dst_idx].load3(data.n[src_idx].mV); + mTexCoords[dst_idx] = data.tc[src_idx]; - mTangents[dst_idx].loadua(data.t[src_idx].mV); + mTangents[dst_idx].loadua(data.t[src_idx].mV); - if (mWeights) - { - mWeights[dst_idx].loadua(data.w[src_idx].mV); + if (mWeights) + { + mWeights[dst_idx].loadua(data.w[src_idx].mV); + } } } - + else + { + // blew past the max vertex size limit, use legacy tangent generation which never adds verts + createTangents(); + } // put back in normalized coordinate frame LLVector4a inv_scale(1.f/mNormalizedScale.mV[0], 1.f / mNormalizedScale.mV[1], 1.f / mNormalizedScale.mV[2]); |