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biasdigest.h
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biasdigest.h
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/** @file biasdigest.h Shadow Bias change digest.
*
* @authors Copyright © 2003-2013 Jaakko Keränen <jaakko.keranen@iki.fi>
* @authors Copyright © 2006-2013 Daniel Swanson <danij@dengine.net>
*
* @par License
* GPL: http://www.gnu.org/licenses/gpl.html
*
* <small>This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. This program is distributed in the hope that it
* will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details. You should have received a copy of the GNU
* General Public License along with this program; if not, see:
* http://www.gnu.org/licenses</small>
*/
#ifndef DENG_RENDER_SHADOWBIAS_DIGEST_H
#define DENG_RENDER_SHADOWBIAS_DIGEST_H
#include <de/libcore.h>
/**
* Change digest for updating trackers in the Shadow Bias lighting model.
*/
class BiasDigest
{
public:
BiasDigest();
/**
* Return the digest to an empty state (clear all changes).
*/
void reset();
/**
* Mark the identified bias source as having changed.
*/
void markSourceChanged(uint index);
/**
* Returns @c true if the identified bias source is marked as changed.
*/
bool isSourceChanged(uint index) const;
private:
DENG2_PRIVATE(d)
};
#endif // DENG_RENDER_SHADOWBIAS_DIGEST_H