#ifndef shaveMayaRenderer_h
#define shaveMayaRenderer_h

// Shave and a Haircut
// (c) 2019 Epic Games
// US Patent 6720962

#include "shaveConstant.h"
#include "shaveRenderCallback.h"
#include "shaveRenderer.h"

class shaveHairShape;


class shaveMayaRenderer : public shaveRenderer
{
public:
					shaveMayaRenderer();
	virtual			~shaveMayaRenderer();

	virtual	void	frameEnd(const shaveGlobals::Globals& g);
	virtual	void	frameStart(const shaveGlobals::Globals& g);
	virtual	float	getPixelAspect() const;

	virtual shaveConstant::RenderMode
					getBaseRenderMode(bool* renderInstances = NULL) const;

	virtual	bool	isGeomNode(const shaveHairShape* nodePtr) const;
	virtual	bool	needVertexColours() const;
	virtual void	postCompositeCleanup();

	virtual	void	render(
						float frame,
						shaveConstant::ShutterState shutter,
						const MDagPath& camera
					);

	virtual	void	renderEnd();
	virtual	void	renderInterrupted();
	virtual	void	renderStart();
	virtual	void	timeChange(const MTime& newTime);


//************************************************
//
//		Helper Methods
//
//************************************************

protected:
	void			setupShadowShaders();


private:
	enum TimeState
	{
		kAwaitingNothing,
		kAwaitingShutterOpen,
		kAwaitingCenterFrame,
		kAwaitingShutterClose
	};

	bool					mHaveVolumeShader;
	shaveRenderCallback*	mRenderCallback;
	MString					mRenderCamera;
	TimeState				mTimeState;
	mutable bool			mWarningGivenUnsupportedHairMode;
	mutable bool			mWarningGivenUnsupportedInstanceMode;
};

#endif