OpenSubdiv/opensubdiv/far/patchBasis.h

74 lines
2.7 KiB
C
Raw Normal View History

//
// 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.
//
#ifndef OPENSUBDIV3_FAR_PATCH_BASIS_H
#define OPENSUBDIV3_FAR_PATCH_BASIS_H
#include "../version.h"
#include "../far/patchParam.h"
namespace OpenSubdiv {
namespace OPENSUBDIV_VERSION {
namespace Far {
namespace internal {
//
// XXXX barfowl: These functions are being kept in place while more complete
// underlying support for all patch types is being worked out. That support
// will include a larger set of patch types (eventually including triangular
// patches for Loop) and arbitrary differentiation of all (to support second
// derivatives and other needs).
//
// So this interface will be changing in future.
//
template <typename REAL>
void GetBilinearWeights(PatchParam const & patchParam, REAL s, REAL t,
REAL wP[4], REAL wDs[4], REAL wDt[4], REAL wDss[4] = 0, REAL wDst[4] = 0, REAL wDtt[4] = 0);
template <typename REAL>
void GetBezierWeights(PatchParam const & patchParam, REAL s, REAL t,
REAL wP[16], REAL wDs[16], REAL wDt[16], REAL wDss[16] = 0, REAL wDst[16] = 0, REAL wDtt[16] = 0);
template <typename REAL>
void GetBSplineWeights(PatchParam const & patchParam, REAL s, REAL t,
REAL wP[16], REAL wDs[16], REAL wDt[16], REAL wDss[16] = 0, REAL wDst[16] = 0, REAL wDtt[16] = 0);
template <typename REAL>
void GetGregoryWeights(PatchParam const & patchParam, REAL s, REAL t,
REAL wP[20], REAL wDs[20], REAL wDt[20], REAL wDss[20] = 0, REAL wDst[20] = 0, REAL wDtt[20] = 0);
} // end namespace internal
} // end namespace Far
} // end namespace OPENSUBDIV_VERSION
using namespace OPENSUBDIV_VERSION;
} // end namespace OpenSubdiv
#endif /* OPENSUBDIV3_FAR_PATCH_BASIS_H */