mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-11-29 06:41:09 +00:00
323 lines
13 KiB
C++
323 lines
13 KiB
C++
//
|
|
// Copyright (C) Pixar. All rights reserved.
|
|
//
|
|
// This license governs use of the accompanying software. If you
|
|
// use the software, you accept this license. If you do not accept
|
|
// the license, do not use the software.
|
|
//
|
|
// 1. Definitions
|
|
// The terms "reproduce," "reproduction," "derivative works," and
|
|
// "distribution" have the same meaning here as under U.S.
|
|
// copyright law. A "contribution" is the original software, or
|
|
// any additions or changes to the software.
|
|
// A "contributor" is any person or entity that distributes its
|
|
// contribution under this license.
|
|
// "Licensed patents" are a contributor's patent claims that read
|
|
// directly on its contribution.
|
|
//
|
|
// 2. Grant of Rights
|
|
// (A) Copyright Grant- Subject to the terms of this license,
|
|
// including the license conditions and limitations in section 3,
|
|
// each contributor grants you a non-exclusive, worldwide,
|
|
// royalty-free copyright license to reproduce its contribution,
|
|
// prepare derivative works of its contribution, and distribute
|
|
// its contribution or any derivative works that you create.
|
|
// (B) Patent Grant- Subject to the terms of this license,
|
|
// including the license conditions and limitations in section 3,
|
|
// each contributor grants you a non-exclusive, worldwide,
|
|
// royalty-free license under its licensed patents to make, have
|
|
// made, use, sell, offer for sale, import, and/or otherwise
|
|
// dispose of its contribution in the software or derivative works
|
|
// of the contribution in the software.
|
|
//
|
|
// 3. Conditions and Limitations
|
|
// (A) No Trademark License- This license does not grant you
|
|
// rights to use any contributor's name, logo, or trademarks.
|
|
// (B) If you bring a patent claim against any contributor over
|
|
// patents that you claim are infringed by the software, your
|
|
// patent license from such contributor to the software ends
|
|
// automatically.
|
|
// (C) If you distribute any portion of the software, you must
|
|
// retain all copyright, patent, trademark, and attribution
|
|
// notices that are present in the software.
|
|
// (D) If you distribute any portion of the software in source
|
|
// code form, you may do so only under this license by including a
|
|
// complete copy of this license with your distribution. If you
|
|
// distribute any portion of the software in compiled or object
|
|
// code form, you may only do so under a license that complies
|
|
// with this license.
|
|
// (E) The software is licensed "as-is." You bear the risk of
|
|
// using it. The contributors give no express warranties,
|
|
// guarantees or conditions. You may have additional consumer
|
|
// rights under your local laws which this license cannot change.
|
|
// To the extent permitted under your local laws, the contributors
|
|
// exclude the implied warranties of merchantability, fitness for
|
|
// a particular purpose and non-infringement.
|
|
//
|
|
#ifndef FAR_CATMARK_SUBDIVISION_TABLES_FACTORY_H
|
|
#define FAR_CATMARK_SUBDIVISION_TABLES_FACTORY_H
|
|
|
|
#include <cassert>
|
|
#include <vector>
|
|
|
|
#include "../version.h"
|
|
|
|
#include "../far/catmarkSubdivisionTables.h"
|
|
#include "../far/meshFactory.h"
|
|
|
|
namespace OpenSubdiv {
|
|
namespace OPENSUBDIV_VERSION {
|
|
|
|
template <class T, class U> class FarMeshFactory;
|
|
|
|
/// \brief A specialized factory for FarCatmarkSubdivisionTables
|
|
///
|
|
/// Separating the factory allows us to isolate Far data structures from Hbr dependencies.
|
|
///
|
|
template <class T, class U> struct FarCatmarkSubdivisionTablesFactory {
|
|
|
|
/// Creates a FarCatmarkSubdivisiontables instance.
|
|
static FarCatmarkSubdivisionTables<U> * Create( FarMeshFactory<T,U> const * factory, FarMesh<U> * mesh, int maxlevel );
|
|
};
|
|
|
|
template <class T, class U> FarCatmarkSubdivisionTables<U> *
|
|
FarCatmarkSubdivisionTablesFactory<T,U>::Create( FarMeshFactory<T,U> const * factory, FarMesh<U> * mesh, int maxlevel ) {
|
|
|
|
assert( factory and mesh );
|
|
|
|
FarCatmarkSubdivisionTables<U> * result = new FarCatmarkSubdivisionTables<U>(mesh, maxlevel);
|
|
|
|
std::vector<int> const & remap = factory->_remapTable;
|
|
|
|
// Allocate memory for the indexing tables
|
|
result->_F_ITa.Resize(factory->GetNumFaceVerticesTotal(maxlevel)*2);
|
|
result->_F_IT.Resize(factory->GetNumFacesTotal(maxlevel) - factory->GetNumFacesTotal(0));
|
|
|
|
result->_E_IT.Resize(factory->GetNumEdgeVerticesTotal(maxlevel)*4);
|
|
result->_E_W.Resize(factory->GetNumEdgeVerticesTotal(maxlevel)*2);
|
|
|
|
result->_V_ITa.Resize(factory->GetNumVertexVerticesTotal(maxlevel)*5);
|
|
result->_V_IT.Resize(factory->GetNumAdjacentVertVerticesTotal(maxlevel)*2);
|
|
result->_V_W.Resize(factory->GetNumVertexVerticesTotal(maxlevel));
|
|
|
|
for (int level=1; level<=maxlevel; ++level) {
|
|
|
|
// pointer to the first vertex corresponding to this level
|
|
result->_vertsOffsets[level] = factory->_vertVertIdx[level-1] +
|
|
(int)factory->_vertVertsList[level-1].size();
|
|
|
|
typename FarSubdivisionTables<U>::VertexKernelBatch * batch = & (result->_batches[level-1]);
|
|
|
|
// Face vertices
|
|
// "For each vertex, gather all the vertices from the parent face."
|
|
int offset = 0;
|
|
int * F_ITa = result->_F_ITa[level-1];
|
|
unsigned int * F_IT = result->_F_IT[level-1];
|
|
batch->kernelF = (int)factory->_faceVertsList[level].size();
|
|
for (int i=0; i < batch->kernelF; ++i) {
|
|
|
|
HbrVertex<T> * v = factory->_faceVertsList[level][i];
|
|
assert(v);
|
|
|
|
HbrFace<T> * f=v->GetParentFace();
|
|
assert(f);
|
|
|
|
int valence = f->GetNumVertices();
|
|
|
|
F_ITa[2*i+0] = offset;
|
|
F_ITa[2*i+1] = valence;
|
|
|
|
for (int j=0; j<valence; ++j)
|
|
F_IT[offset++] = remap[f->GetVertex(j)->GetID()];
|
|
}
|
|
result->_F_ITa.SetMarker(level, &F_ITa[2*batch->kernelF]);
|
|
result->_F_IT.SetMarker(level, &F_IT[offset]);
|
|
|
|
// Edge vertices
|
|
|
|
// Triangular interpolation mode :
|
|
// see "smoothtriangle" tag introduced in prman 3.9 and HbrCatmarkSubdivision<T>
|
|
typename HbrCatmarkSubdivision<T>::TriangleSubdivision triangleMethod =
|
|
dynamic_cast<HbrCatmarkSubdivision<T> *>(factory->_hbrMesh->GetSubdivision())->GetTriangleSubdivisionMethod();
|
|
|
|
// "For each vertex, gather the 2 vertices from the parent edege and the
|
|
// 2 child vertices from the faces to the left and right of that edge.
|
|
// Adjust if edge has a crease or is on a boundary."
|
|
int * E_IT = result->_E_IT[level-1];
|
|
float * E_W = result->_E_W[level-1];
|
|
batch->kernelE = (int)factory->_edgeVertsList[level].size();
|
|
for (int i=0; i < batch->kernelE; ++i) {
|
|
|
|
HbrVertex<T> * v = factory->_edgeVertsList[level][i];
|
|
assert(v);
|
|
HbrHalfedge<T> * e = v->GetParentEdge();
|
|
assert(e);
|
|
|
|
float esharp = e->GetSharpness();
|
|
|
|
// get the indices 2 vertices from the parent edge
|
|
E_IT[4*i+0] = remap[e->GetOrgVertex()->GetID()];
|
|
E_IT[4*i+1] = remap[e->GetDestVertex()->GetID()];
|
|
|
|
float faceWeight=0.5f, vertWeight=0.5f;
|
|
|
|
// in the case of a fractional sharpness, set the adjacent faces vertices
|
|
if (!e->IsBoundary() && esharp <= 1.0f) {
|
|
|
|
float leftWeight, rightWeight;
|
|
HbrFace<T>* rf = e->GetRightFace();
|
|
HbrFace<T>* lf = e->GetLeftFace();
|
|
|
|
leftWeight = ( triangleMethod == HbrCatmarkSubdivision<T>::k_New && lf->GetNumVertices() == 3) ? HBR_SMOOTH_TRI_EDGE_WEIGHT : 0.25f;
|
|
rightWeight = ( triangleMethod == HbrCatmarkSubdivision<T>::k_New && rf->GetNumVertices() == 3) ? HBR_SMOOTH_TRI_EDGE_WEIGHT : 0.25f;
|
|
|
|
faceWeight = 0.5f * (leftWeight + rightWeight);
|
|
vertWeight = 0.5f * (1.0f - 2.0f * faceWeight);
|
|
|
|
faceWeight *= (1.0f - esharp);
|
|
|
|
vertWeight = 0.5f * esharp + (1.0f - esharp) * vertWeight;
|
|
|
|
E_IT[4*i+2] = remap[lf->Subdivide()->GetID()];
|
|
E_IT[4*i+3] = remap[rf->Subdivide()->GetID()];
|
|
} else {
|
|
E_IT[4*i+2] = -1;
|
|
E_IT[4*i+3] = -1;
|
|
}
|
|
E_W[2*i+0] = vertWeight;
|
|
E_W[2*i+1] = faceWeight;
|
|
}
|
|
result->_E_IT.SetMarker(level, &E_IT[4*batch->kernelE]);
|
|
result->_E_W.SetMarker(level, &E_W[2*batch->kernelE]);
|
|
|
|
// Vertex vertices
|
|
|
|
batch->InitVertexKernels( (int)factory->_vertVertsList[level].size(), 0 );
|
|
|
|
offset = 0;
|
|
int * V_ITa = result->_V_ITa[level-1];
|
|
unsigned int * V_IT = result->_V_IT[level-1];
|
|
float * V_W = result->_V_W[level-1];
|
|
int nverts = (int)factory->_vertVertsList[level].size();
|
|
for (int i=0; i < nverts; ++i) {
|
|
|
|
HbrVertex<T> * v = factory->_vertVertsList[level][i],
|
|
* pv = v->GetParentVertex();
|
|
assert(v and pv);
|
|
|
|
// Look at HbrCatmarkSubdivision<T>::Subdivide for more details about
|
|
// the multi-pass interpolation
|
|
int masks[2], npasses;
|
|
float weights[2];
|
|
masks[0] = pv->GetMask(false);
|
|
masks[1] = pv->GetMask(true);
|
|
|
|
// If the masks are identical, only a single pass is necessary. If the
|
|
// vertex is transitioning to another rule, two passes are necessary,
|
|
// except when transitioning from k_Dart to k_Smooth : the same
|
|
// compute kernel is applied twice. Combining this special case allows
|
|
// to batch the compute kernels into fewer calls.
|
|
if (masks[0] != masks[1] and (
|
|
not (masks[0]==HbrVertex<T>::k_Smooth and
|
|
masks[1]==HbrVertex<T>::k_Dart))) {
|
|
weights[1] = pv->GetFractionalMask();
|
|
weights[0] = 1.0f - weights[1];
|
|
npasses = 2;
|
|
} else {
|
|
weights[0] = 1.0f;
|
|
weights[1] = 0.0f;
|
|
npasses = 1;
|
|
}
|
|
|
|
int rank = result->getMaskRanking(masks[0], masks[1]);
|
|
|
|
V_ITa[5*i+0] = offset;
|
|
V_ITa[5*i+1] = 0;
|
|
V_ITa[5*i+2] = remap[ pv->GetID() ];
|
|
V_ITa[5*i+3] = -1;
|
|
V_ITa[5*i+4] = -1;
|
|
|
|
for (int p=0; p<npasses; ++p)
|
|
switch (masks[p]) {
|
|
case HbrVertex<T>::k_Smooth :
|
|
case HbrVertex<T>::k_Dart : {
|
|
HbrHalfedge<T> *e = pv->GetIncidentEdge(),
|
|
*start = e;
|
|
while (e) {
|
|
V_ITa[5*i+1]++;
|
|
|
|
V_IT[offset++] = remap[ e->GetDestVertex()->GetID() ];
|
|
|
|
V_IT[offset++] = remap[ e->GetLeftFace()->Subdivide()->GetID() ];
|
|
|
|
e = e->GetPrev()->GetOpposite();
|
|
|
|
if (e==start) break;
|
|
}
|
|
break;
|
|
}
|
|
case HbrVertex<T>::k_Crease : {
|
|
|
|
class GatherCreaseEdgesOperator : public HbrHalfedgeOperator<T> {
|
|
public:
|
|
HbrVertex<T> * vertex; int eidx[2]; int count; bool next;
|
|
|
|
GatherCreaseEdgesOperator(HbrVertex<T> * v, bool n) : vertex(v), count(0), next(n) { eidx[0]=-1; eidx[1]=-1; }
|
|
|
|
virtual void operator() (HbrHalfedge<T> &e) {
|
|
if (e.IsSharp(next) and count < 2) {
|
|
HbrVertex<T> * a = e.GetDestVertex();
|
|
if (a==vertex)
|
|
a = e.GetOrgVertex();
|
|
eidx[count++]=a->GetID();
|
|
}
|
|
}
|
|
};
|
|
|
|
GatherCreaseEdgesOperator op( pv, p==1 );
|
|
pv->ApplyOperatorSurroundingEdges( op );
|
|
|
|
assert(V_ITa[5*i+3]==-1 and V_ITa[5*i+4]==-1);
|
|
assert(op.eidx[0]!=-1 and op.eidx[1]!=-1);
|
|
V_ITa[5*i+3] = remap[op.eidx[0]];
|
|
V_ITa[5*i+4] = remap[op.eidx[1]];
|
|
break;
|
|
}
|
|
case HbrVertex<T>::k_Corner :
|
|
// in the case of a k_Crease / k_Corner pass combination, we
|
|
// need to set the valence to -1 to tell the "B" Kernel to
|
|
// switch to k_Corner rule (as edge indices won't be -1)
|
|
if (V_ITa[5*i+1]==0)
|
|
V_ITa[5*i+1] = -1;
|
|
|
|
default : break;
|
|
}
|
|
|
|
|
|
if (rank>7)
|
|
// the k_Corner and k_Crease single-pass cases apply a weight of 1.0
|
|
// but this value is inverted in the kernel
|
|
V_W[i] = 0.0;
|
|
else
|
|
V_W[i] = weights[0];
|
|
|
|
batch->AddVertex( i, rank );
|
|
}
|
|
result->_V_ITa.SetMarker(level, &V_ITa[5*nverts]);
|
|
result->_V_IT.SetMarker(level, &V_IT[offset]);
|
|
result->_V_W.SetMarker(level, &V_W[nverts]);
|
|
|
|
batch->kernelB.second++;
|
|
batch->kernelA1.second++;
|
|
batch->kernelA2.second++;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
} // end namespace OPENSUBDIV_VERSION
|
|
using namespace OPENSUBDIV_VERSION;
|
|
|
|
} // end namespace OpenSubdiv
|
|
|
|
#endif /* FAR_CATMARK_SUBDIVISION_TABLES_FACTORY_H */
|