diff options
Diffstat (limited to 'thirdparty/thekla_atlas/nvmesh/weld/VertexWeld.cpp')
| -rw-r--r-- | thirdparty/thekla_atlas/nvmesh/weld/VertexWeld.cpp | 205 |
1 files changed, 0 insertions, 205 deletions
diff --git a/thirdparty/thekla_atlas/nvmesh/weld/VertexWeld.cpp b/thirdparty/thekla_atlas/nvmesh/weld/VertexWeld.cpp deleted file mode 100644 index 2ba4dcae18..0000000000 --- a/thirdparty/thekla_atlas/nvmesh/weld/VertexWeld.cpp +++ /dev/null @@ -1,205 +0,0 @@ -// Copyright NVIDIA Corporation 2006 -- Ignacio Castano <icastano@nvidia.com> - -#include <nvmesh/TriMesh.h> -#include <nvmesh/QuadTriMesh.h> - -#include <nvmesh/weld/VertexWeld.h> -#include <nvmesh/weld/Weld.h> - -using namespace nv; - -// Weld trimesh vertices -void nv::WeldVertices(TriMesh * mesh) -{ - nvDebug("--- Welding vertices.\n"); - - nvCheck(mesh != NULL); - - uint count = mesh->vertexCount(); - Array<uint> xrefs; - Weld<TriMesh::Vertex> weld; - uint newCount = weld(mesh->vertices(), xrefs); - - nvDebug("--- %d vertices welded\n", count - newCount); - - - // Remap faces. - const uint faceCount = mesh->faceCount(); - for(uint f = 0; f < faceCount; f++) - { - TriMesh::Face & face = mesh->faceAt(f); - face.v[0] = xrefs[face.v[0]]; - face.v[1] = xrefs[face.v[1]]; - face.v[2] = xrefs[face.v[2]]; - } -} - - -// Weld trimesh vertices -void nv::WeldVertices(QuadTriMesh * mesh) -{ - nvDebug("--- Welding vertices.\n"); - - nvCheck(mesh != NULL); - - uint count = mesh->vertexCount(); - Array<uint> xrefs; - Weld<TriMesh::Vertex> weld; - uint newCount = weld(mesh->vertices(), xrefs); - - nvDebug("--- %d vertices welded\n", count - newCount); - - // Remap faces. - const uint faceCount = mesh->faceCount(); - for(uint f = 0; f < faceCount; f++) - { - QuadTriMesh::Face & face = mesh->faceAt(f); - face.v[0] = xrefs[face.v[0]]; - face.v[1] = xrefs[face.v[1]]; - face.v[2] = xrefs[face.v[2]]; - - if (face.isQuadFace()) - { - face.v[3] = xrefs[face.v[3]]; - } - } -} - - - -// OLD code - -#if 0 - -namespace { - -struct VertexInfo { - uint id; ///< Original vertex id. - uint normal_face_group; - uint tangent_face_group; - uint material; - uint chart; -}; - - -/// VertexInfo hash functor. -struct VertexHash : public IHashFunctor<VertexInfo> { - VertexHash(PiMeshPtr m) : mesh(m) { - uint c = mesh->FindChannel(VS_POS); - piCheck(c != PI_NULL_INDEX); - channel = mesh->GetChannel(c); - piCheck(channel != NULL); - } - - uint32 operator () (const VertexInfo & v) const { - return channel->data[v.id].GetHash(); - } - -private: - PiMeshPtr mesh; - PiMesh::Channel * channel; -}; - - -/// VertexInfo comparator. -struct VertexEqual : public IBinaryPredicate<VertexInfo> { - VertexEqual(PiMeshPtr m) : mesh(m) {} - - bool operator () (const VertexInfo & a, const VertexInfo & b) const { - - bool equal = a.normal_face_group == b.normal_face_group && - a.tangent_face_group == b.tangent_face_group && - a.material == b.material && - a.chart == b.chart; - - // Split vertex shared by different face types. - if( !equal ) { - return false; - } - - // They were the same vertex. - if( a.id == b.id ) { - return true; - } - - // Vertex equal if all the channels are equal. - return mesh->IsVertexEqual(a.id, b.id); - } - -private: - PiMeshPtr mesh; -}; - -} // namespace - - -/// Weld the vertices. -void PiMeshVertexWeld::WeldVertices(const PiMeshSmoothGroup * mesh_smooth_group, - const PiMeshMaterial * mesh_material, const PiMeshAtlas * mesh_atlas ) -{ - piDebug( "--- Welding vertices:\n" ); - - piDebug( "--- Expand mesh vertices.\n" ); - PiArray<VertexInfo> vertex_array; - - const uint face_num = mesh->GetFaceNum(); - const uint vertex_max = face_num * 3; - vertex_array.Resize( vertex_max ); - - for(uint i = 0; i < vertex_max; i++) { - - uint f = i/3; - - const PiMesh::Face & face = mesh->GetFace(f); - vertex_array[i].id = face.v[i%3]; - - // Reset face attributes. - vertex_array[i].normal_face_group = PI_NULL_INDEX; - vertex_array[i].tangent_face_group = PI_NULL_INDEX; - vertex_array[i].material = PI_NULL_INDEX; - vertex_array[i].chart = PI_NULL_INDEX; - - // Set available attributes. - if( mesh_smooth_group != NULL ) { - if( mesh_smooth_group->HasNormalFaceGroups() ) { - vertex_array[i].normal_face_group = mesh_smooth_group->GetNormalFaceGroup( f ); - } - if( mesh_smooth_group->HasTangentFaceGroups() ) { - vertex_array[i].tangent_face_group = mesh_smooth_group->GetTangentFaceGroup( f ); - } - } - if( mesh_material != NULL ) { - vertex_array[i].material = mesh_material->GetFaceMaterial( f ); - } - if( mesh_atlas != NULL && mesh_atlas->HasCharts() ) { - vertex_array[i].chart = mesh_atlas->GetFaceChart( f ); - } - } - piDebug( "--- %d vertices.\n", vertex_max ); - - piDebug( "--- Collapse vertices.\n" ); - - uint * xrefs = new uint[vertex_max]; - VertexHash hash(mesh); - VertexEqual equal(mesh); - const uint vertex_num = Weld( vertex_array, xrefs, hash, equal ); - piCheck(vertex_num <= vertex_max); - piDebug( "--- %d vertices.\n", vertex_num ); - - // Remap face indices. - piDebug( "--- Remapping face indices.\n" ); - mesh->RemapFaceIndices(vertex_max, xrefs); - - - // Overwrite xrefs to map new vertices to old vertices. - for(uint v = 0; v < vertex_num; v++) { - xrefs[v] = vertex_array[v].id; - } - - // Update vertex order. - mesh->ReorderVertices(vertex_num, xrefs); - - delete [] xrefs; -} - -#endif // 0 |