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flatNormals.h
1 //
2 // Copyright 2018 Pixar
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24 #ifndef HDST_FLAT_NORMALS_H
25 #define HDST_FLAT_NORMALS_H
26 
27 #include "pxr/pxr.h"
28 #include "pxr/imaging/hdSt/api.h"
29 #include "pxr/imaging/hd/bufferSource.h"
30 #include "pxr/imaging/hd/computation.h"
31 
32 #include "pxr/base/tf/token.h"
33 
34 PXR_NAMESPACE_OPEN_SCOPE
35 
36 
37 class Hd_FaceCoords;
38 
42 class HdSt_FlatNormalsComputationGPU : public HdComputation {
43 public:
44 
46  HDST_API
47  HdSt_FlatNormalsComputationGPU(HdBufferArrayRangeSharedPtr const
48  &topologyRange,
49  HdBufferArrayRangeSharedPtr const
50  &vertexRange,
51  int numFaces,
52  TfToken const &srcName,
53  TfToken const &dstName,
54  HdType srcDataType,
55  bool packed);
56 
57  HDST_API
58  virtual void GetBufferSpecs(HdBufferSpecVector *specs) const override;
59  HDST_API
60  virtual void Execute(HdBufferArrayRangeSharedPtr const &range,
61  HdResourceRegistry *resourceRegistry) override;
62 
63  virtual int GetNumOutputElements() const override;
64 
65 private:
66  HdBufferArrayRangeSharedPtr const _topologyRange;
67  HdBufferArrayRangeSharedPtr const _vertexRange;
68  int _numFaces;
69  TfToken _srcName;
70  TfToken _dstName;
71  HdType _srcDataType;
72  HdType _dstDataType;
73 };
74 
75 
76 PXR_NAMESPACE_CLOSE_SCOPE
77 
78 #endif // HDST_FLAT_NORMALS_H
virtual int GetNumOutputElements() const =0
Returns the size of its destination buffer (located by range argument of Execute()).
Token for efficient comparison, assignment, and hashing of known strings.
Definition: token.h:89
A central registry of all GPU resources.
virtual void Execute(HdBufferArrayRangeSharedPtr const &range, HdResourceRegistry *resourceRegistry)=0
Execute computation.
An interface class for GPU computation.
Definition: computation.h:50
virtual void GetBufferSpecs(HdBufferSpecVector *specs) const =0
Add the buffer spec for this computation into given bufferspec vector.