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56 lines
No EOL
2.1 KiB
C++
56 lines
No EOL
2.1 KiB
C++
/*
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** scoped_view_shifter.cpp
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** Stack-scoped class for temporarily changing camera viewpoint
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** Used for stereoscopic 3D.
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**
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**---------------------------------------------------------------------------
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** Copyright 2015 Christopher Bruns
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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**
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*/
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#include "scoped_view_shifter.h"
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#include "r_utility.h"
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namespace s3d {
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ScopedViewShifter::ScopedViewShifter(float dxyz[3]) // in meters
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{
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// save original values
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cachedView = ViewPos;
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// modify values
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ViewPos += DVector3(dxyz[0], dxyz[1], dxyz[2]);
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}
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ScopedViewShifter::~ScopedViewShifter()
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{
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// restore original values
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ViewPos = cachedView;
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}
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} |