mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2025-01-10 00:30:07 +00:00
e96bf355e0
- fixed missing PatchDescriptor functionality for Loop triangle
- add new PatchDescriptor::Type for Gregory triangle
- extended PatchParam boundary mask from 4 to 5 bits (!)
- added new PatchParam methods for parameterization of triangles
- extended PatchMap to support triangular patches
- added basis evaluation for triangular patch types
95 lines
3.5 KiB
C++
95 lines
3.5 KiB
C++
//
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// Copyright 2013 Pixar
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//
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// Licensed under the Apache License, Version 2.0 (the "Apache License")
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// with the following modification; you may not use this file except in
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// compliance with the Apache License and the following modification to it:
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// Section 6. Trademarks. is deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the trade
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// names, trademarks, service marks, or product names of the Licensor
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// and its affiliates, except as required to comply with Section 4(c) of
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// the License and to reproduce the content of the NOTICE file.
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//
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// You may obtain a copy of the Apache License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the Apache License with the above modification is
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// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the Apache License for the specific
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// language governing permissions and limitations under the Apache License.
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//
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#ifndef OPENSUBDIV3_FAR_PATCH_BASIS_H
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#define OPENSUBDIV3_FAR_PATCH_BASIS_H
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#include "../version.h"
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#include "../far/patchParam.h"
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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namespace Far {
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namespace internal {
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//
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// XXXX barfowl: These functions are being kept in place while more complete
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// underlying support for all patch types is being worked out. That support
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// will include a larger set of patch types (eventually including triangular
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// patches for Loop) and arbitrary differentiation of all (to support second
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// derivatives and other needs).
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//
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// So this interface will be changing in future.
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//
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//
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// Quad patch types:
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//
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template <typename REAL>
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int GetBilinearWeights(PatchParam const & patchParam, REAL s, REAL t,
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REAL wP[4], REAL wDs[4], REAL wDt[4], REAL wDss[4] = 0, REAL wDst[4] = 0, REAL wDtt[4] = 0);
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template <typename REAL>
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int GetBezierWeights(PatchParam const & patchParam, REAL s, REAL t,
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REAL wP[16], REAL wDs[16], REAL wDt[16], REAL wDss[16] = 0, REAL wDst[16] = 0, REAL wDtt[16] = 0);
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template <typename REAL>
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int GetBSplineWeights(PatchParam const & patchParam, REAL s, REAL t,
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REAL wP[16], REAL wDs[16], REAL wDt[16], REAL wDss[16] = 0, REAL wDst[16] = 0, REAL wDtt[16] = 0);
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template <typename REAL>
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int GetGregoryWeights(PatchParam const & patchParam, REAL s, REAL t,
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REAL wP[20], REAL wDs[20], REAL wDt[20], REAL wDss[20] = 0, REAL wDst[20] = 0, REAL wDtt[20] = 0);
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//
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// Triangle patch types:
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//
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template <typename REAL>
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int GetLinearTriWeights(PatchParam const & patchParam, REAL s, REAL t,
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REAL wP[3], REAL wDs[3], REAL wDt[3], REAL wDss[3] = 0, REAL wDst[3] = 0, REAL wDtt[3] = 0);
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template <typename REAL>
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int GetBezierTriWeights(PatchParam const & patchParam, REAL s, REAL t,
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REAL wP[12], REAL wDs[12], REAL wDt[12], REAL wDss[12] = 0, REAL wDst[12] = 0, REAL wDtt[12] = 0);
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template <typename REAL>
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int GetBoxSplineTriWeights(PatchParam const & patchParam, REAL s, REAL t,
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REAL wP[12], REAL wDs[12], REAL wDt[12], REAL wDss[12] = 0, REAL wDst[12] = 0, REAL wDtt[12] = 0);
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template <typename REAL>
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int GetGregoryTriWeights(PatchParam const & patchParam, REAL s, REAL t,
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REAL wP[15], REAL wDs[15], REAL wDt[15], REAL wDss[15] = 0, REAL wDst[15] = 0, REAL wDtt[15] = 0);
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} // end namespace internal
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} // end namespace Far
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} // end namespace OPENSUBDIV_VERSION
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using namespace OPENSUBDIV_VERSION;
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} // end namespace OpenSubdiv
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#endif /* OPENSUBDIV3_FAR_PATCH_BASIS_H */
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