94 lines
3.2 KiB
C++
94 lines
3.2 KiB
C++
//
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// Copyright 2013 Pixar
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//
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// Licensed under the terms set forth in the LICENSE.txt file available at
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// https://opensubdiv.org/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 internal while more complete
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// underlying support for all patch types is being worked out. The set of
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// bases supported here is actually larger than PatchDescriptor::Type -- with
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// Bezier available for internal use. A new and more complete set of types
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// is warranted (without the non-patch types associated with PatchDescriptor)
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// along with an interface to query properties associated with them.
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//
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// Note that with the high-level functions here that operate on all patch
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// types, it is not strictly necessary to expose the low-level methods in
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// currant usage.
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//
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//
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// Low-level basis evaluation (normalized, unscaled) for quad patch types:
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//
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template <typename REAL>
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int EvalBasisLinear(REAL s, REAL t,
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REAL wP[4], REAL wDs[4] = 0, REAL wDt[4] = 0, REAL wDss[4] = 0, REAL wDst[4] = 0, REAL wDtt[4] = 0);
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template <typename REAL>
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int EvalBasisBezier(REAL s, REAL t,
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REAL wP[16], REAL wDs[16] = 0, REAL wDt[16] = 0, REAL wDss[16] = 0, REAL wDst[16] = 0, REAL wDtt[16] = 0);
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template <typename REAL>
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int EvalBasisBSpline(REAL s, REAL t,
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REAL wP[16], REAL wDs[16] = 0, REAL wDt[16] = 0, REAL wDss[16] = 0, REAL wDst[16] = 0, REAL wDtt[16] = 0);
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template <typename REAL>
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int EvalBasisGregory(REAL s, REAL t,
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REAL wP[20], REAL wDs[20] = 0, REAL wDt[20] = 0, REAL wDss[20] = 0, REAL wDst[20] = 0, REAL wDtt[20] = 0);
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//
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// Low-level basis evaluation (normalized, unscaled) for triangular patch types:
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//
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template <typename REAL>
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int EvalBasisLinearTri(REAL s, REAL t,
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REAL wP[3], REAL wDs[3] = 0, REAL wDt[3] = 0, REAL wDss[3] = 0, REAL wDst[3] = 0, REAL wDtt[3] = 0);
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template <typename REAL>
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int EvalBasisBezierTri(REAL s, REAL t,
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REAL wP[15], REAL wDs[15] = 0, REAL wDt[15] = 0, REAL wDss[15] = 0, REAL wDst[15] = 0, REAL wDtt[15] = 0);
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template <typename REAL>
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int EvalBasisBoxSplineTri(REAL s, REAL t,
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REAL wP[12], REAL wDs[12] = 0, REAL wDt[12] = 0, REAL wDss[12] = 0, REAL wDst[12] = 0, REAL wDtt[12] = 0);
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template <typename REAL>
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int EvalBasisGregoryTri(REAL s, REAL t,
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REAL wP[18], REAL wDs[18] = 0, REAL wDt[18] = 0, REAL wDss[18] = 0, REAL wDst[18] = 0, REAL wDtt[18] = 0);
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//
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// High-level basis evaluation for all types using PatchParam:
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//
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template <typename REAL>
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int EvaluatePatchBasisNormalized(int patchType, PatchParam const & param, REAL s, REAL t,
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REAL wP[], REAL wDs[] = 0, REAL wDt[] = 0, REAL wDss[] = 0, REAL wDst[] = 0, REAL wDtt[] = 0);
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template <typename REAL>
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int EvaluatePatchBasis(int patchType, PatchParam const & param, REAL s, REAL t,
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REAL wP[], REAL wDs[] = 0, REAL wDt[] = 0, REAL wDss[] = 0, REAL wDst[] = 0, REAL wDtt[] = 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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