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bilinearScheme.h
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1//
2// Copyright 2014 DreamWorks Animation LLC.
3//
4// Licensed under the terms set forth in the LICENSE.txt file available at
5// https://opensubdiv.org/license.
6//
7#ifndef OPENSUBDIV3_SDC_BILINEAR_SCHEME_H
8#define OPENSUBDIV3_SDC_BILINEAR_SCHEME_H
9
10#include "../version.h"
11
12#include "../sdc/scheme.h"
13
14 namespace OpenSubdiv {
15 namespace OPENSUBDIV_VERSION {
16
17 namespace Sdc {
18
19//
20// Specializations for Scheme<SCHEME_BILINEAR>:
21//
22
23//
24// Bilinear traits:
25//
26 template <>
27 inline Split Scheme<SCHEME_BILINEAR>::GetTopologicalSplitType() { return SPLIT_TO_QUADS; }
28
29 template <>
30 inline int Scheme<SCHEME_BILINEAR>::GetRegularFaceSize() { return 4; }
31
32 template <>
33 inline int Scheme<SCHEME_BILINEAR>::GetRegularVertexValence() { return 4; }
34
35 template <>
36 inline int Scheme<SCHEME_BILINEAR>::GetLocalNeighborhoodSize() { return 0; }
37
38
39//
40// Refinement masks:
41//
42 template <>
43 template <typename EDGE, typename MASK>
44 void
45 Scheme<SCHEME_BILINEAR>::ComputeEdgeVertexMask(EDGE const& edge, MASK& mask,
46 Crease::Rule, Crease::Rule) const {
47 // This should be inline, otherwise trivially replicate it:
48 assignCreaseMaskForEdge(edge, mask);
49}
50
51 template <>
52 template <typename VERTEX, typename MASK>
53 void
54 Scheme<SCHEME_BILINEAR>::ComputeVertexVertexMask(VERTEX const& vertex, MASK& mask,
55 Crease::Rule, Crease::Rule) const {
56 // This should be inline, otherwise trivially replicate it:
57 assignCornerMaskForVertex(vertex, mask);
58}
59
60
61//
62// Limit masks for position -- the limit position of all vertices is the refined vertex.
63//
64 template <>
65 template <typename VERTEX, typename MASK>
66 inline void
67 Scheme<SCHEME_BILINEAR>::assignCornerLimitMask(VERTEX const& /* vertex */, MASK& posMask) const {
68
69 posMask.SetNumVertexWeights(1);
70 posMask.SetNumEdgeWeights(0);
71 posMask.SetNumFaceWeights(0);
72 posMask.SetFaceWeightsForFaceCenters(false);
73
74 posMask.VertexWeight(0) = 1.0f;
75}
76
77 template <>
78 template <typename VERTEX, typename MASK>
79 inline void
80 Scheme<SCHEME_BILINEAR>::assignCreaseLimitMask(VERTEX const& vertex, MASK& posMask,
81 int const /* creaseEnds */[2]) const {
82
83 assignCornerLimitMask(vertex, posMask);
84}
85
86 template <>
87 template <typename VERTEX, typename MASK>
88 inline void
89 Scheme<SCHEME_BILINEAR>::assignSmoothLimitMask(VERTEX const& vertex, MASK& posMask) const {
90
91 assignCornerLimitMask(vertex, posMask);
92}
93
94//
95// Limit masks for tangents -- these are ambiguous around all vertices. Provide
96// the tangents based on the incident edges of the first face.
97//
98 template <>
99 template <typename VERTEX, typename MASK>
100 inline void
101 Scheme<SCHEME_BILINEAR>::assignCornerLimitTangentMasks(VERTEX const& /* vertex */,
102 MASK& tan1Mask, MASK& tan2Mask) const {
103
104 tan1Mask.SetNumVertexWeights(1);
105 tan1Mask.SetNumEdgeWeights(2);
106 tan1Mask.SetNumFaceWeights(0);
107 tan1Mask.SetFaceWeightsForFaceCenters(false);
108
109 tan2Mask.SetNumVertexWeights(1);
110 tan2Mask.SetNumEdgeWeights(2);
111 tan2Mask.SetNumFaceWeights(0);
112 tan2Mask.SetFaceWeightsForFaceCenters(false);
113
114 tan1Mask.VertexWeight(0) = -1.0f;
115 tan1Mask.EdgeWeight(0) = 1.0f;
116 tan1Mask.EdgeWeight(1) = 0.0f;
117
118 tan2Mask.VertexWeight(0) = -1.0f;
119 tan2Mask.EdgeWeight(0) = 0.0f;
120 tan2Mask.EdgeWeight(1) = 1.0f;
121}
122
123 template <>
124 template <typename VERTEX, typename MASK>
125 inline void
126 Scheme<SCHEME_BILINEAR>::assignCreaseLimitTangentMasks(VERTEX const& vertex,
127 MASK& tan1Mask, MASK& tan2Mask, int const /* creaseEnds */[2]) const {
128
129 assignCornerLimitTangentMasks(vertex, tan1Mask, tan2Mask);
130}
131
132 template <>
133 template <typename VERTEX, typename MASK>
134 inline void
135 Scheme<SCHEME_BILINEAR>::assignSmoothLimitTangentMasks(VERTEX const& vertex,
136 MASK& tan1Mask, MASK& tan2Mask) const {
137
138 assignCornerLimitTangentMasks(vertex, tan1Mask, tan2Mask);
139}
140
141} // end namespace sdc
142
143} // end namespace OPENSUBDIV_VERSION
144 using namespace OPENSUBDIV_VERSION;
145} // end namespace OpenSubdiv
146
147#endif /* OPENSUBDIV3_SDC_BILINEAR_SCHEME_H */
scheme.h
OpenSubdiv
Definition limits.h:15
OpenSubdiv::OPENSUBDIV_VERSION
Definition limits.h:16
OpenSubdiv::OPENSUBDIV_VERSION::Sdc
Definition bilinearScheme.h:17
OpenSubdiv::OPENSUBDIV_VERSION::Sdc::Split
Split
Enumerated type for all face splitting schemes.
Definition types.h:30
OpenSubdiv::OPENSUBDIV_VERSION::Sdc::SPLIT_TO_QUADS
@ SPLIT_TO_QUADS
Used by Catmark and Bilinear.
Definition types.h:31
OpenSubdiv::OPENSUBDIV_VERSION::Sdc::Crease::Rule
Rule
Definition crease.h:65
OpenSubdiv::OPENSUBDIV_VERSION::Sdc::Scheme::GetTopologicalSplitType
static Split GetTopologicalSplitType()
OpenSubdiv::OPENSUBDIV_VERSION::Sdc::Scheme::ComputeVertexVertexMask
void ComputeVertexVertexMask(VERTEX const &vertexNeighborhood, MASK &vertexVertexMask, Crease::Rule parentRule=Crease::RULE_UNKNOWN, Crease::Rule childRule=Crease::RULE_UNKNOWN) const
Vertex-vertex masks If known, a single Rule or pair of Rules can be specified (indicating a crease tr...
Definition scheme.h:495
OpenSubdiv::OPENSUBDIV_VERSION::Sdc::Scheme::assignCreaseLimitTangentMasks
void assignCreaseLimitTangentMasks(VERTEX const &vertex, MASK &tan1, MASK &tan2, int const creaseEnds[2]) const
OpenSubdiv::OPENSUBDIV_VERSION::Sdc::Scheme::GetRegularFaceSize
static int GetRegularFaceSize()
OpenSubdiv::OPENSUBDIV_VERSION::Sdc::Scheme::assignCreaseMaskForEdge
void assignCreaseMaskForEdge(EDGE const &edge, MASK &mask) const
Definition scheme.h:300
OpenSubdiv::OPENSUBDIV_VERSION::Sdc::Scheme::ComputeEdgeVertexMask
void ComputeEdgeVertexMask(EDGE const &edgeNeighborhood, MASK &edgeVertexMask, Crease::Rule parentRule=Crease::RULE_UNKNOWN, Crease::Rule childRule=Crease::RULE_UNKNOWN) const
Edge-vertex masks If known, the Rule for the edge and/or the derived vertex can be specified to accel...
Definition scheme.h:375
OpenSubdiv::OPENSUBDIV_VERSION::Sdc::Scheme::assignSmoothLimitMask
void assignSmoothLimitMask(VERTEX const &vertex, MASK &pos) const
OpenSubdiv::OPENSUBDIV_VERSION::Sdc::Scheme::GetLocalNeighborhoodSize
static int GetLocalNeighborhoodSize()
OpenSubdiv::OPENSUBDIV_VERSION::Sdc::Scheme::assignCornerMaskForVertex
void assignCornerMaskForVertex(VERTEX const &edge, MASK &mask) const
Definition scheme.h:314
OpenSubdiv::OPENSUBDIV_VERSION::Sdc::Scheme::assignCreaseLimitMask
void assignCreaseLimitMask(VERTEX const &vertex, MASK &pos, int const creaseEnds[2]) const
OpenSubdiv::OPENSUBDIV_VERSION::Sdc::Scheme::GetRegularVertexValence
static int GetRegularVertexValence()
OpenSubdiv::OPENSUBDIV_VERSION::Sdc::Scheme::assignSmoothLimitTangentMasks
void assignSmoothLimitTangentMasks(VERTEX const &vertex, MASK &tan1, MASK &tan2) const
OpenSubdiv::OPENSUBDIV_VERSION::Sdc::Scheme::assignCornerLimitMask
void assignCornerLimitMask(VERTEX const &vertex, MASK &pos) const
OpenSubdiv::OPENSUBDIV_VERSION::Sdc::Scheme::assignCornerLimitTangentMasks
void assignCornerLimitTangentMasks(VERTEX const &vertex, MASK &tan1, MASK &tan2) const