OgreShaderExIntegratedPSSM3.h
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/*
-----------------------------------------------------------------------------
This source file is part of OGRE
(Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/
Copyright (c) 2000-2013 Torus Knot Software Ltd
Permission is hereby granted, free of charge, to any person obtaining a copy
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The above copyright notice and this permission notice shall be included in
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*/
#ifndef _ShaderExIntegratedPSSM3_
#define _ShaderExIntegratedPSSM3_
#include "OgreShaderPrerequisites.h"
#ifdef RTSHADER_SYSTEM_BUILD_EXT_SHADERS
#include "OgreVector4.h"
#include "OgreLight.h"
#include "OgreCommon.h"
#include "OgreShaderSubRenderState.h"
#include "OgreShaderParameter.h"
namespace Ogre {
namespace RTShader {
#define SGX_LIB_INTEGRATEDPSSM "SGXLib_IntegratedPSSM"
#define SGX_FUNC_COMPUTE_SHADOW_COLOUR3 "SGX_ComputeShadowFactor_PSSM3"
#define SGX_FUNC_APPLYSHADOWFACTOR_DIFFUSE "SGX_ApplyShadowFactor_Diffuse"
#define SGX_FUNC_MODULATE_SCALAR "SGX_ModulateScalar"
class _OgreRTSSExport IntegratedPSSM3 : public SubRenderState
{
// Interface.
public:
typedef vector<Real>::type SplitPointList;
IntegratedPSSM3();
virtual const String& getType() const;
virtual int getExecutionOrder() const;
virtual void updateGpuProgramsParams(Renderable* rend, Pass* pass, const AutoParamDataSource* source, const LightList* pLightList);
virtual void copyFrom(const SubRenderState& rhs);
virtual bool preAddToRenderState(const RenderState* renderState, Pass* srcPass, Pass* dstPass);
void setSplitPoints(const SplitPointList& newSplitPoints);
static String Type;
// Protected types:
protected:
// Shadow texture parameters.
struct _OgreRTSSExport ShadowTextureParams
{
// The max range of this shadow texture in terms of PSSM (far plane of viewing camera).
Real mMaxRange;
// The shadow map sampler index.
unsigned int mTextureSamplerIndex;
// The shadow map sampler.
UniformParameterPtr mTextureSampler;
// The inverse texture
UniformParameterPtr mInvTextureSize;
// The source light view projection matrix combined with world matrix.
UniformParameterPtr mWorldViewProjMatrix;
// The vertex shader output position in light space.
ParameterPtr mVSOutLightPosition;
// The pixel shader input position in light space.
ParameterPtr mPSInLightPosition;
};
typedef vector<ShadowTextureParams>::type ShadowTextureParamsList;
typedef ShadowTextureParamsList::iterator ShadowTextureParamsIterator;
typedef ShadowTextureParamsList::const_iterator ShadowTextureParamsConstIterator;
// Protected methods
protected:
virtual bool resolveParameters(ProgramSet* programSet);
virtual bool resolveDependencies(ProgramSet* programSet);
virtual bool addFunctionInvocations(ProgramSet* programSet);
bool addVSInvocation(Function* vsMain, const int groupOrder, int& internalCounter);
bool addPSInvocation(Program* psProgram, const int groupOrder, int& internalCounter);
// Attributes.
protected:
// Shadow texture parameter list.
ShadowTextureParamsList mShadowTextureParamsList;
// Split points parameter.
UniformParameterPtr mPSSplitPoints;
// Vertex shader input position parameter.
ParameterPtr mVSInPos;
// Vertex shader output position (clip space) parameter.
ParameterPtr mVSOutPos;
// Vertex shader output depth (clip space) parameter.
ParameterPtr mVSOutDepth;
// Pixel shader input depth (clip space) parameter.
ParameterPtr mPSInDepth;
// Pixel shader local computed shadow colour parameter.
ParameterPtr mPSLocalShadowFactor;
// Pixel shader in/local diffuse colour parameter.
ParameterPtr mPSDiffuse;
// Pixel shader output diffuse colour parameter.
ParameterPtr mPSOutDiffuse;
// Pixel shader in/local specular colour parameter.
ParameterPtr mPSSpecualr;
// Derived scene colour (ambient term).
UniformParameterPtr mPSDerivedSceneColour;
};
class _OgreRTSSExport IntegratedPSSM3Factory : public SubRenderStateFactory
{
public:
virtual const String& getType() const;
virtual SubRenderState* createInstance(ScriptCompiler* compiler, PropertyAbstractNode* prop, Pass* pass, SGScriptTranslator* translator);
protected:
virtual SubRenderState* createInstanceImpl();
};
}
}
#endif
#endif
OgreVector4.h
Ogre::RTShader::UniformParameterPtr
SharedPtr< UniformParameter > UniformParameterPtr
Definition: OgreShaderParameter.h:568
Ogre::LightList
HashedVector< Light * > LightList
Definition: OgreCommon.h:541
Ogre::vector< Real >::type
std::vector< Real, STLAllocator< Real, GeneralAllocPolicy > > type
Definition: OgrePrerequisites.h:494
Ogre::Real
float Real
Software floating point type.
Definition: OgrePrerequisites.h:70
OgreShaderParameter.h
OgreShaderPrerequisites.h
Ogre::RTShader::ParameterPtr
SharedPtr< Parameter > ParameterPtr
Definition: OgreShaderParameter.h:369
OgreCommon.h
Ogre::String
_StringBase String
Definition: OgrePrerequisites.h:439
OgreShaderSubRenderState.h
_OgreRTSSExport
#define _OgreRTSSExport
Definition: OgreShaderPrerequisites.h:108
Ogre
Definition: OgreAndroidLogListener.h:34
OgreLight.h

Copyright © 2012 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.