mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-12-02 00:00:07 +00:00
198 lines
8.3 KiB
C++
198 lines
8.3 KiB
C++
//
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// Copyright (C) Pixar. All rights reserved.
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//
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// This license governs use of the accompanying software. If you
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// use the software, you accept this license. If you do not accept
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// the license, do not use the software.
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//
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// 1. Definitions
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// The terms "reproduce," "reproduction," "derivative works," and
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// "distribution" have the same meaning here as under U.S.
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// copyright law. A "contribution" is the original software, or
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// any additions or changes to the software.
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// A "contributor" is any person or entity that distributes its
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// contribution under this license.
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// "Licensed patents" are a contributor's patent claims that read
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// directly on its contribution.
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//
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// 2. Grant of Rights
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// (A) Copyright Grant- Subject to the terms of this license,
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// including the license conditions and limitations in section 3,
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// each contributor grants you a non-exclusive, worldwide,
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// royalty-free copyright license to reproduce its contribution,
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// prepare derivative works of its contribution, and distribute
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// its contribution or any derivative works that you create.
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// (B) Patent Grant- Subject to the terms of this license,
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// including the license conditions and limitations in section 3,
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// each contributor grants you a non-exclusive, worldwide,
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// royalty-free license under its licensed patents to make, have
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// made, use, sell, offer for sale, import, and/or otherwise
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// dispose of its contribution in the software or derivative works
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// of the contribution in the software.
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//
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// 3. Conditions and Limitations
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// (A) No Trademark License- This license does not grant you
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// rights to use any contributor's name, logo, or trademarks.
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// (B) If you bring a patent claim against any contributor over
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// patents that you claim are infringed by the software, your
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// patent license from such contributor to the software ends
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// automatically.
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// (C) If you distribute any portion of the software, you must
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// retain all copyright, patent, trademark, and attribution
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// notices that are present in the software.
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// (D) If you distribute any portion of the software in source
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// code form, you may do so only under this license by including a
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// complete copy of this license with your distribution. If you
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// distribute any portion of the software in compiled or object
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// code form, you may only do so under a license that complies
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// with this license.
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// (E) The software is licensed "as-is." You bear the risk of
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// using it. The contributors give no express warranties,
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// guarantees or conditions. You may have additional consumer
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// rights under your local laws which this license cannot change.
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// To the extent permitted under your local laws, the contributors
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// exclude the implied warranties of merchantability, fitness for
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// a particular purpose and non-infringement.
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//
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#include "hbrUtil.h"
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#include <far/mesh.h>
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#include <hbr/mesh.h>
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#include <hbr/bilinear.h>
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#include <hbr/loop.h>
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#include <hbr/catmark.h>
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#define OSD_ERROR printf // XXXX
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OpenSubdiv::OsdHbrMesh * ConvertToHBR(int nVertices,
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std::vector<int> const & numIndices,
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std::vector<int> const & faceIndices,
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std::vector<int> const & vtxCreaseIndices,
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std::vector<float> const & vtxCreases,
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std::vector<int> const & edgeCrease1Indices, // face index, local edge index
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std::vector<float> const & edgeCreases1,
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std::vector<int> const & edgeCrease2Indices, // 2 vertex indices (Maya friendly)
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std::vector<float> const & edgeCreases2,
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int interpBoundary, int scheme)
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{
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static OpenSubdiv::HbrBilinearSubdivision<OpenSubdiv::OsdVertex> _bilinear;
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static OpenSubdiv::HbrLoopSubdivision<OpenSubdiv::OsdVertex> _loop;
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static OpenSubdiv::HbrCatmarkSubdivision<OpenSubdiv::OsdVertex> _catmark;
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OpenSubdiv::OsdHbrMesh *hbrMesh;
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if (scheme == 0)
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hbrMesh = new OpenSubdiv::OsdHbrMesh(&_catmark);
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else if (scheme == 1)
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hbrMesh = new OpenSubdiv::OsdHbrMesh(&_loop);
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else
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hbrMesh = new OpenSubdiv::OsdHbrMesh(&_bilinear);
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OpenSubdiv::OsdVertex v;
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for(int i = 0; i < nVertices; ++i){
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// create empty vertex : actual vertices will be initialized in UpdatePoints();
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hbrMesh->NewVertex(i, v);
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}
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// get face indices
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std::vector<int> vIndex;
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int nFaces = (int)numIndices.size(), offset = 0, ptxidx = 0;
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for (int i = 0; i < nFaces; ++i) {
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int numVertex = numIndices[i];
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vIndex.resize(numVertex);
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bool valid=true;
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for (int j=0; j<numVertex; ++j) {
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vIndex[j] = faceIndices[j + offset];
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int vNextIndex = faceIndices[(j+1)%numVertex + offset];
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// check for non-manifold face
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OpenSubdiv::OsdHbrVertex * origin = hbrMesh->GetVertex( vIndex[j] );
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OpenSubdiv::OsdHbrVertex * destination = hbrMesh->GetVertex( vNextIndex );
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if (!origin || !destination) {
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OSD_ERROR("ERROR : An edge was specified that connected a nonexistent vertex");
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valid=false;
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}
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if (origin == destination) {
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OSD_ERROR("ERROR : An edge was specified that connected a vertex to itself");
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valid=false;
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}
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OpenSubdiv::OsdHbrHalfedge * opposite = destination->GetEdge(origin);
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if (opposite && opposite->GetOpposite()) {
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OSD_ERROR("ERROR : A non-manifold edge incident to more than 2 faces was found");
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valid=false;
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}
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if (origin->GetEdge(destination)) {
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OSD_ERROR("ERROR : An edge connecting two vertices was specified more than once. "
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"It's likely that an incident face was flipped");
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valid=false;
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}
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}
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if ( valid ) {
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OpenSubdiv::OsdHbrFace *face = hbrMesh->NewFace(numVertex, &(vIndex[0]), 0);
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face->SetPtexIndex(ptxidx);
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ptxidx += (numVertex == 4) ? 1 : numVertex;
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}
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else
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OSD_ERROR("Face %d will be ignored\n", i);
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offset += numVertex;
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}
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// XXX: use hbr enum or redefine same enum in gsd
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hbrMesh->SetInterpolateBoundaryMethod((OpenSubdiv::OsdHbrMesh::InterpolateBoundaryMethod)interpBoundary);
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// set edge crease in two different indexing way
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int nEdgeCreases = (int)edgeCreases1.size();
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for (int i = 0; i < nEdgeCreases; ++i) {
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if( edgeCreases1[i] <= 0. )
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continue;
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OpenSubdiv::OsdHbrHalfedge * e = hbrMesh->GetFace(edgeCrease1Indices[i*2])->GetEdge(edgeCrease1Indices[i*2+1]);
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if (!e) {
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OSD_ERROR("Can't find edge (face %d edge %d)\n", edgeCrease1Indices[i*2], edgeCrease1Indices[i*2+1]);
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continue;
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}
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e->SetSharpness( (float)edgeCreases1[i] );
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}
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nEdgeCreases = (int)edgeCreases2.size();
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for (int i = 0; i < nEdgeCreases; ++i) {
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if( edgeCreases1[i] <= 0. )
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continue;
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OpenSubdiv::OsdHbrVertex * v0 = hbrMesh->GetVertex(edgeCrease2Indices[i*2]);
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OpenSubdiv::OsdHbrVertex * v1 = hbrMesh->GetVertex(edgeCrease2Indices[i*2+1]);
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OpenSubdiv::OsdHbrHalfedge * e = NULL;
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if ( v0 && v1 )
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if ( ! (e = v0->GetEdge(v1)) )
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e = v1->GetEdge(v0);
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if (!e) {
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OSD_ERROR("ERROR can't find edge");
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continue;
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}
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e->SetSharpness( (float)edgeCreases2[i] );
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}
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// set corner
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{
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int nVertexCreases = (int)vtxCreases.size();
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for ( int i = 0; i< nVertexCreases; ++i ) {
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if( vtxCreases[i] <= 0. )
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continue;
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OpenSubdiv::OsdHbrVertex * v = hbrMesh->GetVertex(vtxCreaseIndices[i]);
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if (!v) {
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OSD_ERROR("Can't find vertex %d\n", vtxCreaseIndices[i]);
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continue;
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}
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v->SetSharpness( (float)vtxCreases[i] );
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}
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}
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hbrMesh->Finish();
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return hbrMesh;
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}
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