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fallbackLightingShader.h
1 //
2 // Copyright 2016 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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12 // the License and to reproduce the content of the NOTICE file.
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14 // You may obtain a copy of the Apache License at
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24 #ifndef HDST_FALLBACK_LIGHTING_SHADER_H
25 #define HDST_FALLBACK_LIGHTING_SHADER_H
26 
27 #include "pxr/pxr.h"
28 #include "pxr/imaging/hdSt/api.h"
29 #include "pxr/imaging/hdSt/lightingShader.h"
30 #include "pxr/imaging/hio/glslfx.h"
31 
32 #include "pxr/base/gf/vec4d.h"
33 
34 #include "pxr/base/tf/declarePtrs.h"
35 #include "pxr/base/tf/token.h"
36 
37 #include <boost/scoped_ptr.hpp>
38 #include <boost/shared_ptr.hpp>
39 
40 #include <vector>
41 
42 PXR_NAMESPACE_OPEN_SCOPE
43 
44 
49 class HdSt_FallbackLightingShader : public HdStLightingShader {
50 public:
51  HDST_API
52  HdSt_FallbackLightingShader();
53  HDST_API
54  virtual ~HdSt_FallbackLightingShader();
55 
56  // HdStShaderCode overrides
57  HDST_API
58  virtual ID ComputeHash() const;
59  HDST_API
60  virtual std::string GetSource(TfToken const &shaderStageKey) const;
61  HDST_API
62  virtual void BindResources(HdSt_ResourceBinder const &binder, int program);
63  HDST_API
64  virtual void UnbindResources(HdSt_ResourceBinder const &binder, int program);
65  HDST_API
66  virtual void AddBindings(HdBindingRequestVector *customBindings);
67 
68  // HdStLightingShader overrides
69  HDST_API
70  virtual void SetCamera(GfMatrix4d const &worldToViewMatrix,
71  GfMatrix4d const &projectionMatrix);
72 
73 private:
74  boost::scoped_ptr<HioGlslfx> _glslfx;
75 };
76 
77 
78 PXR_NAMESPACE_CLOSE_SCOPE
79 
80 #endif // HDST_FALLBACK_LIGHTING_SHADER_H
virtual std::string GetSource(TfToken const &shaderStageKey) const =0
Returns the shader source provided by this shader for shaderStageKey.
virtual void AddBindings(HdBindingRequestVector *customBindings)=0
Add custom bindings (used by codegen)
virtual void UnbindResources(HdSt_ResourceBinder const &binder, int program)=0
Unbinds shader-specific resources.
Token for efficient comparison, assignment, and hashing of known strings.
Definition: token.h:89
Stores a 4x4 matrix of double elements.
Definition: matrix4d.h:88
virtual void BindResources(HdSt_ResourceBinder const &binder, int program)=0
Binds shader-specific resources to program XXX: this interface is meant to be used for bridging the G...
virtual void SetCamera(GfMatrix4d const &worldToViewMatrix, GfMatrix4d const &projectionMatrix)=0
Sets camera state.
virtual ID ComputeHash() const =0
Returns the hash value of this shader.
A lighting shader base class.