mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-11-27 05:50:05 +00:00
d5deab632c
* rolled getNumFVarVertices into allocateTables * renamed tessellate to triangulateQuads (technically speaking, Loop scheme uses a trivial triangulation) * condensed the pointer arithmetic used for triangulating the data tables
69 lines
2.6 KiB
C++
69 lines
2.6 KiB
C++
//
|
|
// Copyright 2013 Pixar
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "Apache License")
|
|
// with the following modification; you may not use this file except in
|
|
// compliance with the Apache License and the following modification to it:
|
|
// Section 6. Trademarks. is deleted and replaced with:
|
|
//
|
|
// 6. Trademarks. This License does not grant permission to use the trade
|
|
// names, trademarks, service marks, or product names of the Licensor
|
|
// and its affiliates, except as required to comply with Section 4(c) of
|
|
// the License and to reproduce the content of the NOTICE file.
|
|
//
|
|
// You may obtain a copy of the Apache License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the Apache License with the above modification is
|
|
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
|
// KIND, either express or implied. See the Apache License for the specific
|
|
// language governing permissions and limitations under the Apache License.
|
|
//
|
|
|
|
#include "../osd/drawContext.h"
|
|
|
|
namespace OpenSubdiv {
|
|
namespace OPENSUBDIV_VERSION {
|
|
|
|
OsdDrawContext::~OsdDrawContext() {}
|
|
|
|
void
|
|
OsdDrawContext::ConvertPatchArrays(FarPatchTables::PatchArrayVector const &farPatchArrays,
|
|
OsdDrawContext::PatchArrayVector &osdPatchArrays,
|
|
int maxValence, int numElements)
|
|
{
|
|
// create patch arrays for drawing (while duplicating subpatches for transition patch arrays)
|
|
static int subPatchCounts[] = { 1, 3, 4, 4, 4, 2 }; // number of subpatches for patterns
|
|
|
|
int numTotalPatchArrays = 0;
|
|
for (int i = 0; i < (int)farPatchArrays.size(); ++i) {
|
|
FarPatchTables::TransitionPattern pattern = farPatchArrays[i].GetDescriptor().GetPattern();
|
|
numTotalPatchArrays += subPatchCounts[(int)pattern];
|
|
}
|
|
|
|
// allocate drawing patch arrays
|
|
osdPatchArrays.clear();
|
|
osdPatchArrays.reserve(numTotalPatchArrays);
|
|
|
|
for (int i = 0; i < (int)farPatchArrays.size(); ++i) {
|
|
FarPatchTables::TransitionPattern pattern = farPatchArrays[i].GetDescriptor().GetPattern();
|
|
int numSubPatches = subPatchCounts[(int)pattern];
|
|
|
|
FarPatchTables::PatchArray const &parray = farPatchArrays[i];
|
|
FarPatchTables::Descriptor srcDesc = parray.GetDescriptor();
|
|
|
|
for (int j = 0; j < numSubPatches; ++j) {
|
|
PatchDescriptor desc(srcDesc, maxValence, j, numElements);
|
|
|
|
osdPatchArrays.push_back(PatchArray(desc, parray.GetArrayRange()));
|
|
}
|
|
}
|
|
}
|
|
|
|
} // end namespace OPENSUBDIV_VERSION
|
|
} // end namespace OpenSubdiv
|
|
|
|
|