source: GTP/trunk/Lib/Illum/IllumModule/OgreIllumModule/include/RenderTechniques/OgreConvolvedCubeMapRenderTechnique.h @ 2355

#pragma once

//disable inheritance warning caused by multiple inheritance
#if _WIN32
#if _MSC_VER
#pragma warning(disable: 4250)
#endif
#endif

#include "ConvolvedCubeMapRenderTechnique.h"
#include "OgreCubeMapRenderTechnique.h"
#include "Ogre.h"

using namespace Ogre;

/**
        @brief ConvolvedCubeMapRenderTechnique used in an Ogre environment.
*/
class OgreConvolvedCubeMapRenderTechnique :     public ConvolvedCubeMapRenderTechnique,
                                                                                        public OgreCubeMapRenderTechnique
{
public:

        /**
                @brief Constructor.

                @param startFrame                                       adds an offset to the current frame number to help evenly distribute updates between frames
                @param cubeMapUpdateInterval            update frequency
                @param cubeMapResolution                        color cubemap resolution
                @param reducedCubeMapResolution         reduced sized color cubemap resolution
                @param reducedTexID                                     the id of the texture unit state the resulting cubemap should be bound to
                @param useDistCalc                                      flag to skip cube face update if object is far away
                @param useFaceAngleCalc                         flag to skip cube face update if face is neglible
                @param distTolerance                            distance tolerance used in face skip
                @param angleTolerance                           angle tolerance used in face skip
                @param updateAllFace                            defines if all cubemap faces should be updated in a frame or only one face per frame
                @param renderSelf                               sets if the object should be rendered to the cube map
                @param renderEnvironment                sets if the environment should be rendered to the cube map
                @param selfMaterial                             the material that should be set for the object while rendering the cubemap
                @param environmentMaterial      the material that should be set for the environment while rendering the cubemap
                @param getMinMax                                sets if the minimum and maximum values of the cubemap should be computed
                @param attachToTexUnit                  sets if this cubemap should be attach to a texture unit of the pass
                @param minVariableName                  sets the name of the gpu shader program parameter to which the minimum value should be bound to
                @param maxVariableName                  sets the name of the gpu shader program parameter to which the maximum value should be bound to
                @param pass                                                     the pass to operate on                  
                @param parentRenderable                         the object to operate on
                @param parentTechniqueGroup                     the TechniqueGroup this RenderedTechnique is attached to
        */
        OgreConvolvedCubeMapRenderTechnique( unsigned long startFrame,
                                                        unsigned long cubeMapUpdateInterval,
                                                        unsigned int cubeMapResolution,
                                                        unsigned int reducedCubeMapResolution,
                                                        unsigned char texID,
                                                        bool useDistCalc,
                                                        bool useFaceAngleCalc,
                                                        float distTolerance,
                                                        float angleTolerance,
                                                        bool updateAllFace,
                                                        bool renderSelf,
                                                        bool renderEnvironment,
                                                        String selfMaterial,
                                                        String environmentMaterial,
                                                        bool getMinMax,
                                                        bool attachToTexUnit,
                                                        String minVariableName,
                                                        String maxVariableName,
                                                        String triggerName,                                                                                                             
                                                        Pass* pass,
                                                        OgreRenderable* parentRenderable,
                                                        OgreTechniqueGroup* parentTechniqueGroup
                                                        );
        /**
                @brief Destructor.
        */
        virtual ~OgreConvolvedCubeMapRenderTechnique();
        
        //inherited
        void update(unsigned long frameNum);
        
protected:      
        
        //inherited
        void reducedCubeMapRunChanged(RenderingRun* run);
        //inherited
        void colorCubeMapRunChanged(RenderingRun* run);
        //inherited
        RenderingRun* createReducedCubeMapRun();
        
};

/**
        @brief RenderTechniqueFactory to create OgreConvoledCubeMapRenderTechnique instances.
*/
class OgreConvoledCubeMapRenderTechniqueFactory : public OgreCubeMapRenderTechniqueFactory
{
public:
        
        OgreConvoledCubeMapRenderTechniqueFactory();

        OgreRenderTechnique* createInstance(IllumTechniqueParams* params,
                                                                                Pass* pass,
                                                                                OgreRenderable* parentRenderable,
                                                                                OgreTechniqueGroup* parentTechniqueGroup);


        unsigned int reducedCubeMapResolution;
};