/*
** scoped_view_shifter.h
** Stack-scoped class for temporarily changing camera viewpoint
** Used for stereoscopic 3D.
**
**---------------------------------------------------------------------------
** Copyright 2015 Christopher Bruns
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
**    notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
**    notice, this list of conditions and the following disclaimer in the
**    documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
**    derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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**---------------------------------------------------------------------------
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*/

#ifndef GL_STEREO3D_SCOPED_VIEW_SHIFTER_H_
#define GL_STEREO3D_SCOPED_VIEW_SHIFTER_H_

#include "basictypes.h"
#include "vectors.h"

namespace s3d {

	/**
	 * Temporarily shift 
	 */
	class ScopedViewShifter
	{
	public:
		ScopedViewShifter(float dxyz[3]); // in meters
		~ScopedViewShifter();

	private:
		DVector3 cachedView;
	};

} /* namespace s3d */

#endif // GL_STEREO3D_SCOPED_VIEW_SHIFTER_H_