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00001 
00007 /* Copyright, 2001 Nevrax Ltd.
00008  *
00009  * This file is part of NEVRAX NEL.
00010  * NEVRAX NEL is free software; you can redistribute it and/or modify
00011  * it under the terms of the GNU General Public License as published by
00012  * the Free Software Foundation; either version 2, or (at your option)
00013  * any later version.
00014 
00015  * NEVRAX NEL is distributed in the hope that it will be useful, but
00016  * WITHOUT ANY WARRANTY; without even the implied warranty of
00017  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
00018  * General Public License for more details.
00019 
00020  * You should have received a copy of the GNU General Public License
00021  * along with NEVRAX NEL; see the file COPYING. If not, write to the
00022  * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
00023  * MA 02111-1307, USA.
00024  */
00025 
00026 #ifndef NL_LIGHT_INFLUENCE_INTERPOLATOR_H
00027 #define NL_LIGHT_INFLUENCE_INTERPOLATOR_H
00028 
00029 #include "nel/misc/types_nl.h"
00030 #include "nel/3d/point_light_influence.h"
00031 #include <vector>
00032 
00033 
00034 namespace NL3D 
00035 {
00036 
00037 
00038 class   CPointLightNamed;
00039 
00040 // ***************************************************************************
00048 class CLightInfluenceInterpolator
00049 {
00050 public:
00051 
00053         enum    {NumLightPerCorner= 2};
00054 
00055 public:
00056 
00057         struct  CCorner
00058         {
00059                 // List of lights on this corner
00060                 CPointLightNamed                *Lights[NumLightPerCorner];
00061 
00062         private:
00063                 friend class CLightInfluenceInterpolator;
00064                 // biLinear factor
00065                 float                                   Influence;
00066         };
00067 
00071         CCorner                         Corners[4];
00072 
00073 
00074 public:
00075 
00077         CLightInfluenceInterpolator() {}
00078 
00079 
00085         void                    interpolate(std::vector<CPointLightInfluence> &pointLightList, float subX, float subY);
00086 
00087 };
00088 
00089 
00090 } // NL3D
00091 
00092 
00093 #endif // NL_LIGHT_INFLUENCE_INTERPOLATOR_H
00094 
00095 /* End of light_influence_interpolator.h */