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00001 
00007 /* Copyright, 2000-2002 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_MESH_BLENDER_H
00027 #define NL_MESH_BLENDER_H
00028 
00029 #include "nel/misc/types_nl.h"
00030 #include "3d/material.h"
00031 
00032 
00033 namespace NL3D 
00034 {
00035 
00036 
00037 class   IDriver;
00038 
00039 // ***************************************************************************
00048 class CMeshBlender
00049 {
00050 public:
00051 
00053         CMeshBlender() {}
00054 
00056         void            prepareRenderForGlobalAlpha(CMaterial &material, IDriver *drv, float globalAlpha, uint8 globalAlphaInt, bool gaDisableZWrite);
00057 
00059         void            restoreRender(CMaterial &material, IDriver *drv, bool gaDisableZWrite);
00060 
00062         void            prepareRenderForGlobalAlphaCoarseMesh(CMaterial &material, IDriver *drv, NLMISC::CRGBA color, float globalAlpha, bool gaDisableZWrite);
00063 
00065         void            restoreRenderCoarseMesh(CMaterial &material, IDriver *drv, bool gaDisableZWrite);
00066 
00067 private:
00068         uint8                           _BkOpacity;
00069         bool                            _BkZWrite;
00070         bool                            _BkBlend;
00071         CMaterial::TBlend       _BkSrcBlend;
00072         CMaterial::TBlend       _BkDstBlend;
00073         float                           _BkAlphaTestThreshold;
00074         NLMISC::CRGBA           _BkupColor;
00075 
00076 };
00077 
00078 
00079 } // NL3D
00080 
00081 
00082 #endif // NL_MESH_BLENDER_H
00083 
00084 /* End of mesh_blender.h */