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domeLightComputations.h
1 //
2 // Copyright 2019 Pixar
3 //
4 // Licensed under the Apache License, Version 2.0 (the "Apache License")
5 // with the following modification; you may not use this file except in
6 // compliance with the Apache License and the following modification to it:
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24 #ifndef HDST_DOME_LIGHT_COMPUTATIONS_H
25 #define HDST_DOME_LIGHT_COMPUTATIONS_H
26 
27 #include "pxr/pxr.h"
28 #include "pxr/imaging/hdSt/api.h"
29 #include "pxr/imaging/hd/computation.h"
30 
31 #include "pxr/base/tf/token.h"
32 
33 PXR_NAMESPACE_OPEN_SCOPE
34 
38 typedef boost::shared_ptr<class HdSt_DomeLightComputationGPU>
39  HdSt_DomeLightComputationGPUSharedPtr;
40 
41 class HdSt_DomeLightComputationGPU : public HdComputation {
42 public:
44  HDST_API
45  HdSt_DomeLightComputationGPU(TfToken token,
46  unsigned int sourceId,
47  unsigned int destId,
48  int width, int height,
49  unsigned int numLevels,
50  unsigned int level,
51  float roughness=-1.0);
52 
53  HDST_API
54  virtual void GetBufferSpecs(HdBufferSpecVector *specs) const override {}
55 
56  HDST_API
57  virtual void Execute(HdBufferArrayRangeSharedPtr const &range,
58  HdResourceRegistry *resourceRegistry) override;
59 
63  virtual int GetNumOutputElements() const override { return 0; }
64 
65 private:
66  TfToken _shaderToken;
67 
68  unsigned int _sourceTextureId;
69  unsigned int _destTextureId;
70  int _textureWidth;
71  int _textureHeight;
72 
73  unsigned int _numLevels;
74  unsigned int _level;
75  bool _layered;
76  unsigned int _layer;
77 
78  float _roughness;
79 };
80 
81 
82 PXR_NAMESPACE_CLOSE_SCOPE
83 
84 #endif // HDST_DOME_LIGHT_COMPUTATIONS_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.