#pragma once

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

#include "OgreRenderTechnique.h"
#include "IllumVolumeRenderTechnique.h"

/**
	@brief CausticCasterRenderTechnique used in an OGRE environment.
*/
class OgreIllumVolumeRenderTechnique : public OgreRenderTechnique,
											public IllumVolumeRenderTechnique
{
public:

	OgreIllumVolumeRenderTechnique(unsigned long startFrame,
							unsigned long illumVolumeUpdateInterval,
							unsigned int illumTextureResolution,
							unsigned int textureDepth,
							unsigned char illumTexID,
							bool useDistCalc,
							String materialName,
							String lightMatrixGPUParamName,
							bool useHierarchicalImpostor,
							unsigned char impostorTexID,
							Pass* pass,
							OgreRenderable* parentRenderable,
							OgreTechniqueGroup* parentTechniqueGroup
							);
	/**
		@brief Destructor.
	*/
	~OgreIllumVolumeRenderTechnique();
	
protected:
	
	String materialName;
	unsigned char illumTexID;
	String lightMatrixGPUParamName;
	unsigned char impostorTexID;
	
	//inherited
	RenderingRun* createLightVolumeRenderingRun();
	void lightVolumeChanged(RenderingRun* run);
	void lightVolumeUpdated(RenderingRun* run);
	void hierarchicalImpostorUpdated(RenderingRun* run);
};

class OgreIllumVolumeRenderTechniqueFactory : public RenderTechniqueFactory
{
public:
	
	OgreIllumVolumeRenderTechniqueFactory();

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


	String materialName;
	unsigned char illumTexID;
	unsigned long startFrame;	
	unsigned long illumVolumeUpdateInterval;
	unsigned int illumTextureResolution;
	unsigned int textureDepth;	
	bool useDistCalc;
	String lightMatrixGPUParamName;
	unsigned char impostorTexID;
	bool useHierarchicalImpostor;	
};