diff options
| -rw-r--r-- | indra/newview/llmodelpreview.cpp | 55 |
1 files changed, 36 insertions, 19 deletions
diff --git a/indra/newview/llmodelpreview.cpp b/indra/newview/llmodelpreview.cpp index 93186657ce..f21b05f9dc 100644 --- a/indra/newview/llmodelpreview.cpp +++ b/indra/newview/llmodelpreview.cpp @@ -1860,12 +1860,13 @@ void LLModelPreview::genMeshOptimizerLODs(S32 which_lod, U32 decimation, bool en face.mNumVertices); */ - S32 target_indices = llmax(3, llfloor(num_indices * indices_ratio)); // leave at least one triangle + S32 target_indices = 0; F32 result_code = 0; // how far from original the model is, 1 == 100% S32 new_indices = 0; if (sloppy) { + target_indices = llfloor(num_indices * indices_ratio); new_indices = LLMeshOptimizer::simplifySloppy( output, face.mIndices, @@ -1877,11 +1878,9 @@ void LLModelPreview::genMeshOptimizerLODs(S32 which_lod, U32 decimation, bool en lod_error_threshold, &result_code); } - - // todo: instead of checking (new_indices <= 0) - // create a dummy triangle if simplifySloppy returns nothing - if (new_indices <= 0) + else { + target_indices = llmax(3, llfloor(num_indices * indices_ratio)); // leave at least one triangle new_indices = LLMeshOptimizer::simplify( output, face.mIndices, @@ -1903,28 +1902,46 @@ void LLModelPreview::genMeshOptimizerLODs(S32 which_lod, U32 decimation, bool en << " new Indices: " << new_indices << " original count: " << num_indices << LL_ENDL; } - if (new_indices == 0) - { - LL_WARNS() << "No indices generated by meshoptimizer for face " << face_idx - << " of model " << target_model->mLabel - << " target Indices: " << target_indices - << " original count: " << num_indices << LL_ENDL; - } LLVolumeFace &new_face = target_model->getVolumeFace(face_idx); // Copy old values new_face = face; - // Assign new values - new_face.resizeIndices(new_indices); // will wipe out mIndices, so new_face can't substitute output - S32 idx_size = (new_indices * sizeof(U16) + 0xF) & ~0xF; - LLVector4a::memcpyNonAliased16((F32*)new_face.mIndices, (F32*)output, idx_size); - ll_aligned_free_16(output); + if (new_indices == 0) + { + if (!sloppy) + { + // optimizeSloppy() can optimize triangles away even if target_indices is > 2, + // but optimize() isn't supposed to + LL_INFOS() << "No indices generated by meshoptimizer for face " << face_idx + << " of model " << target_model->mLabel + << " target Indices: " << target_indices + << " original count: " << num_indices << LL_ENDL; + } + + // Face got optimized away + // Generate empty triangle + new_face.resizeIndices(3); + new_face.resizeVertices(1); + memset(new_face.mIndices, 0, sizeof(U16) * 3); + new_face.mPositions[0].clear(); // set first vertice to 0 + new_face.mNormals[0].clear(); + new_face.mTexCoords[0].setZero(); + } + else + { + // Assign new values + new_face.resizeIndices(new_indices); // will wipe out mIndices, so new_face can't substitute output + S32 idx_size = (new_indices * sizeof(U16) + 0xF) & ~0xF; + LLVector4a::memcpyNonAliased16((F32*)new_face.mIndices, (F32*)output, idx_size); - // clear unused values - new_face.optimize(); + // clear unused values + new_face.optimize(); + } + + ll_aligned_free_16(output); } //blind copy skin weights and just take closest skin weight to point on |