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Object-Oriented Graphics Rendering Engine
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OgreShaderExDualQuaternionSkinning.h
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1 /*
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3 This source file is part of OGRE
4 (Object-oriented Graphics Rendering Engine)
5 For the latest info, see http://www.ogre3d.org
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7 Copyright (c) 2000-2014 Torus Knot Software Ltd
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27 #ifndef _ShaderExDualQuaternionSkinning_
28 #define _ShaderExDualQuaternionSkinning_
29 
31 
32 #ifdef RTSHADER_SYSTEM_BUILD_EXT_SHADERS
34 #include "OgreShaderParameter.h"
35 #include "OgreRenderSystem.h"
36 #include "OgreShaderFunctionAtom.h"
37 
38 namespace Ogre {
39 namespace RTShader {
40 
48 #define SGX_LIB_DUAL_QUATERNION "SGXLib_DualQuaternion"
49 #define SGX_FUNC_BLEND_WEIGHT "SGX_BlendWeight"
50 #define SGX_FUNC_ANTIPODALITY_ADJUSTMENT "SGX_AntipodalityAdjustment"
51 #define SGX_FUNC_CALCULATE_BLEND_POSITION "SGX_CalculateBlendPosition"
52 #define SGX_FUNC_CALCULATE_BLEND_NORMAL "SGX_CalculateBlendNormal"
53 #define SGX_FUNC_NORMALIZE_DUAL_QUATERNION "SGX_NormalizeDualQuaternion"
54 #define SGX_FUNC_ADJOINT_TRANSPOSE_MATRIX "SGX_AdjointTransposeMatrix"
55 #define SGX_FUNC_BUILD_DUAL_QUATERNION_MATRIX "SGX_BuildDualQuaternionMatrix"
56 
61 class _OgreRTSSExport DualQuaternionSkinning : public HardwareSkinningTechnique
62 {
63 // Interface.
64 public:
66  DualQuaternionSkinning();
67 
71  virtual bool resolveParameters(ProgramSet* programSet);
72 
76  virtual bool resolveDependencies(ProgramSet* programSet);
77 
81  virtual bool addFunctionInvocations(ProgramSet* programSet);
82 
83 // Protected methods
84 protected:
86  void addPositionCalculations(Function* vsMain, int& funcCounter);
87 
89  void adjustForCorrectAntipodality(Function* vsMain, int index, int& funcCounter, const ParameterPtr& pTempWorldMatrix);
90 
95  void addIndexedPositionWeight(Function* vsMain, int index, ParameterPtr& pWorldMatrix,
96  ParameterPtr& pPositionTempParameter, ParameterPtr& pPositionRelatedOutputParam, int& funcCounter);
97 
99  void addNormalRelatedCalculations(Function* vsMain,
100  ParameterPtr& pNormalRelatedParam,
101  ParameterPtr& pNormalWorldRelatedParam,
102  int& funcCounter);
103 
104 protected:
105  UniformParameterPtr mParamInScaleShearMatrices;
106  ParameterPtr mParamLocalBlendPosition;
107  ParameterPtr mParamBlendS;
108  ParameterPtr mParamBlendDQ;
109  ParameterPtr mParamInitialDQ;
110  ParameterPtr mParamTempWorldMatrix;
111 
112  ParameterPtr mParamTempFloat2x4;
113  ParameterPtr mParamTempFloat3x3;
114  ParameterPtr mParamTempFloat3x4;
115 
116  ParameterPtr mParamIndex1;
117  ParameterPtr mParamIndex2;
118 
119 };
120 
121 } // namespace RTShader
122 } // namespace Ogre
123 
124 #endif // RTSHADER_SYSTEM_BUILD_EXT_SHADERS
125 #endif // _ShaderExDualQuaternionSkinning_
126 
SharedPtr< Parameter > ParameterPtr
#define _OgreRTSSExport
SharedPtr< UniformParameter > UniformParameterPtr