diff options
Diffstat (limited to 'source/blender/io/usd/intern/usd_reader_mesh.cc')
| -rw-r--r-- | source/blender/io/usd/intern/usd_reader_mesh.cc | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/source/blender/io/usd/intern/usd_reader_mesh.cc b/source/blender/io/usd/intern/usd_reader_mesh.cc index 53dbaac99fd..95b73c85da6 100644 --- a/source/blender/io/usd/intern/usd_reader_mesh.cc +++ b/source/blender/io/usd/intern/usd_reader_mesh.cc @@ -522,6 +522,38 @@ void USDMeshReader::read_colors(Mesh *mesh, const double motionSampleTime) } } +void USDMeshReader::read_vertex_creases(Mesh *mesh, const double motionSampleTime) +{ + pxr::VtIntArray corner_indices; + if (!mesh_prim_.GetCornerIndicesAttr().Get(&corner_indices, motionSampleTime)) { + return; + } + + pxr::VtIntArray corner_sharpnesses; + if (!mesh_prim_.GetCornerSharpnessesAttr().Get(&corner_sharpnesses, motionSampleTime)) { + return; + } + + /* It is fine to have fewer indices than vertices, but never the other way other. */ + if (corner_indices.size() > mesh->totvert) { + std::cerr << "WARNING: too many vertex crease for mesh " << prim_path_ << std::endl; + return; + } + + if (corner_indices.size() != corner_sharpnesses.size()) { + std::cerr << "WARNING: vertex crease indices and sharpnesses count mismatch for mesh " + << prim_path_ << std::endl; + return; + } + + float *creases = static_cast<float *>( + CustomData_add_layer(&mesh->vdata, CD_CREASE, CD_DEFAULT, nullptr, mesh->totvert)); + + for (size_t i = 0; i < corner_indices.size(); i++) { + creases[corner_indices[i]] = corner_sharpnesses[i]; + } +} + void USDMeshReader::process_normals_vertex_varying(Mesh *mesh) { if (!mesh) { @@ -640,6 +672,8 @@ void USDMeshReader::read_mesh_sample(ImportSettings *settings, mvert.co[1] = positions_[i][1]; mvert.co[2] = positions_[i][2]; } + + read_vertex_creases(mesh, motionSampleTime); } if (new_mesh || (settings->read_flag & MOD_MESHSEQ_READ_POLY) != 0) { |