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r_lgrid.h
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r_lgrid.h
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/**\file r_lgrid.h
*\section License
* License: GPL
* Online License Link: http://www.gnu.org/licenses/gpl.html
*
*\author Copyright © 2003-2012 Jaakko Keränen <jaakko.keranen@iki.fi>
*\author Copyright © 2006-2012 Daniel Swanson <danij@dengine.net>
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
/**
* Smoothed ambient sector lighting.
*/
#ifndef LIBDENG_REFRESH_LIGHT_GRID_H
#define LIBDENG_REFRESH_LIGHT_GRID_H
#include "dd_types.h"
#include "p_mapdata.h"
#ifdef __cplusplus
extern "C" {
#endif
void LG_Register(void);
void LG_InitForMap(void);
void LG_Update(void);
/**
* Called when a setting is changed which affects the lightgrid.
*/
void LG_MarkAllForUpdate(void);
void LG_SectorChanged(Sector* sector);
/**
* Calculate the light color for a 3D point in the world.
*
* @param point 3D point.
* @param color Evaluated color of the point (return value).
*/
void LG_Evaluate(coord_t const point[3], float destColor[3]);
/**
* Calculate the light level for a 3D point in the world.
*
* @param point 3D point.
* @return Evaluated light level of the point.
*/
float LG_EvaluateLightLevel(coord_t const point[3]);
void LG_Debug(void);
#ifdef __cplusplus
} // extern "C"
#endif
#endif /// LIBDENG_REFRESH_LIGHT_GRID_H