#ifndef OpenGLViewportRenderer_h_
#define OpenGLViewportRenderer_h_

#include <maya/MViewportRenderer.h>

class MDagPath;
class MBoundingBox;

//
// Sample plugin viewport renderer using the OpenGL API.
//
class OpenGLViewportRenderer : public MViewportRenderer
{
public:
	OpenGLViewportRenderer( const MString & name = "OpenGLViewportRenderer" );
	virtual ~OpenGLViewportRenderer();

	// Required virtual overrides from MViewportRenderer
	//
	virtual	MStatus	initialize();
	virtual	MStatus	uninitialize();
	virtual MStatus	render( const MRenderingInfo &renderInfo );
	virtual bool	nativelySupports( MViewportRenderer::RenderingAPI api,
										  float version );
	virtual bool	override( MViewportRenderer::RenderingOverride override );

protected:
	bool			drawSurface( const MDagPath &dagPath, bool active, bool templated );
	bool			drawBounds( const MDagPath &dagPath,
								const MBoundingBox &box);
	bool			setupLighting();
	bool			renderToTarget( const MRenderingInfo &renderInfo );

	RenderingAPI	m_API;		// Rendering API
	float			m_Version;	// OpenGL version number as float.
};

//
// Extends the OpenGLViewportRenderer class above
// with the ability to render the HUD and manipulators
// as well as the scene geometry.
//
class OpenGLViewportRendererHUD : public OpenGLViewportRenderer
{
public:
	OpenGLViewportRendererHUD();
	virtual unsigned int	overrideThenStandardExclusion() const;
};

//
// Extends the OpenGLViewportRenderer class above
// with the ability to render all Maya UI on top of the
// scene geometry as rendered by OpenGLViewportRenderer.
//
class OpenGLViewportRendererFullUI : public OpenGLViewportRenderer
{
public:
	OpenGLViewportRendererFullUI();
};

#endif /* OpenGLViewportRenderer_h_ */

//-
// ==========================================================================
// Copyright 1995,2006,2008 Autodesk, Inc. All rights reserved.
//
// Use of this software is subject to the terms of the Autodesk
// license agreement provided at the time of installation or download,
// or which otherwise accompanies this software in either electronic
// or hard copy form.
// ==========================================================================
//+