148 lines
4.0 KiB
C++
148 lines
4.0 KiB
C++
//
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// Copyright 2014 DreamWorks Animation LLC.
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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_SDC_BILINEAR_SCHEME_H
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#define OPENSUBDIV3_SDC_BILINEAR_SCHEME_H
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#include "../version.h"
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#include "../sdc/scheme.h"
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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namespace Sdc {
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//
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// Specializations for Scheme<SCHEME_BILINEAR>:
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//
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//
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// Bilinear traits:
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//
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template <>
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inline Split Scheme<SCHEME_BILINEAR>::GetTopologicalSplitType() { return SPLIT_TO_QUADS; }
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template <>
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inline int Scheme<SCHEME_BILINEAR>::GetRegularFaceSize() { return 4; }
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template <>
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inline int Scheme<SCHEME_BILINEAR>::GetRegularVertexValence() { return 4; }
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template <>
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inline int Scheme<SCHEME_BILINEAR>::GetLocalNeighborhoodSize() { return 0; }
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//
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// Refinement masks:
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//
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template <>
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template <typename EDGE, typename MASK>
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void
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Scheme<SCHEME_BILINEAR>::ComputeEdgeVertexMask(EDGE const& edge, MASK& mask,
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Crease::Rule, Crease::Rule) const {
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// This should be inline, otherwise trivially replicate it:
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assignCreaseMaskForEdge(edge, mask);
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}
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template <>
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template <typename VERTEX, typename MASK>
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void
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Scheme<SCHEME_BILINEAR>::ComputeVertexVertexMask(VERTEX const& vertex, MASK& mask,
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Crease::Rule, Crease::Rule) const {
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// This should be inline, otherwise trivially replicate it:
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assignCornerMaskForVertex(vertex, mask);
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}
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//
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// Limit masks for position -- the limit position of all vertices is the refined vertex.
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//
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template <>
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template <typename VERTEX, typename MASK>
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inline void
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Scheme<SCHEME_BILINEAR>::assignCornerLimitMask(VERTEX const& /* vertex */, MASK& posMask) const {
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posMask.SetNumVertexWeights(1);
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posMask.SetNumEdgeWeights(0);
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posMask.SetNumFaceWeights(0);
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posMask.SetFaceWeightsForFaceCenters(false);
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posMask.VertexWeight(0) = 1.0f;
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}
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template <>
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template <typename VERTEX, typename MASK>
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inline void
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Scheme<SCHEME_BILINEAR>::assignCreaseLimitMask(VERTEX const& vertex, MASK& posMask,
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int const /* creaseEnds */[2]) const {
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assignCornerLimitMask(vertex, posMask);
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}
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template <>
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template <typename VERTEX, typename MASK>
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inline void
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Scheme<SCHEME_BILINEAR>::assignSmoothLimitMask(VERTEX const& vertex, MASK& posMask) const {
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assignCornerLimitMask(vertex, posMask);
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}
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//
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// Limit masks for tangents -- these are ambiguous around all vertices. Provide
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// the tangents based on the incident edges of the first face.
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//
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template <>
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template <typename VERTEX, typename MASK>
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inline void
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Scheme<SCHEME_BILINEAR>::assignCornerLimitTangentMasks(VERTEX const& /* vertex */,
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MASK& tan1Mask, MASK& tan2Mask) const {
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tan1Mask.SetNumVertexWeights(1);
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tan1Mask.SetNumEdgeWeights(2);
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tan1Mask.SetNumFaceWeights(0);
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tan1Mask.SetFaceWeightsForFaceCenters(false);
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tan2Mask.SetNumVertexWeights(1);
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tan2Mask.SetNumEdgeWeights(2);
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tan2Mask.SetNumFaceWeights(0);
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tan2Mask.SetFaceWeightsForFaceCenters(false);
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tan1Mask.VertexWeight(0) = -1.0f;
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tan1Mask.EdgeWeight(0) = 1.0f;
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tan1Mask.EdgeWeight(1) = 0.0f;
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tan2Mask.VertexWeight(0) = -1.0f;
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tan2Mask.EdgeWeight(0) = 0.0f;
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tan2Mask.EdgeWeight(1) = 1.0f;
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}
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template <>
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template <typename VERTEX, typename MASK>
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inline void
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Scheme<SCHEME_BILINEAR>::assignCreaseLimitTangentMasks(VERTEX const& vertex,
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MASK& tan1Mask, MASK& tan2Mask, int const /* creaseEnds */[2]) const {
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assignCornerLimitTangentMasks(vertex, tan1Mask, tan2Mask);
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}
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template <>
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template <typename VERTEX, typename MASK>
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inline void
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Scheme<SCHEME_BILINEAR>::assignSmoothLimitTangentMasks(VERTEX const& vertex,
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MASK& tan1Mask, MASK& tan2Mask) const {
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assignCornerLimitTangentMasks(vertex, tan1Mask, tan2Mask);
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}
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} // end namespace sdc
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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_SDC_BILINEAR_SCHEME_H */
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