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SoHeightMapToNormalMap.h

00001 /**************************************************************************\
00002  *
00003  *  This file is part of the Coin 3D visualization library.
00004  *  Copyright (C) by Kongsberg Oil & Gas Technologies.
00005  *
00006  *  This library is free software; you can redistribute it and/or
00007  *  modify it under the terms of the GNU General Public License
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00009  *  See the file LICENSE.GPL at the root directory of this source
00010  *  distribution for additional information about the GNU GPL.
00011  *
00012  *  For using Coin with software that can not be combined with the GNU
00013  *  GPL, and for taking advantage of the additional benefits of our
00014  *  support services, please contact Kongsberg Oil & Gas Technologies
00015  *  about acquiring a Coin Professional Edition License.
00016  *
00017  *  See http://www.coin3d.org/ for more information.
00018  *
00019  *  Kongsberg Oil & Gas Technologies, Bygdoy Alle 5, 0257 Oslo, NORWAY.
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00022 \**************************************************************************/
00023 
00024 #ifndef COIN_SOHEIGHTMAPTONORMALMAP_H
00025 #define COIN_SOHEIGHTMAPTONORMALMAP_H
00026 
00027 #include <Inventor/SbVec2s.h>
00028 #include <Inventor/engines/SoTexture2Convert.h>
00029 #include <Inventor/fields/SoSFEnum.h>
00030 
00031 class SbImage;
00032 
00033 class COIN_DLL_API SoHeightMapToNormalMap : public SoTexture2Convert {
00034   typedef SoTexture2Convert inherited;
00035   SO_ENGINE_HEADER(SoHeightMapToNormalMap);
00036 
00037 public:
00038   static void initClass(void);
00039   SoHeightMapToNormalMap(void);
00040 
00041   enum NormalMapFormat {
00042     INT8
00043   };
00044 
00045   SoSFEnum format;
00046 
00047   static void convert(const unsigned char * srcptr, SbVec2s size, int nc, SbImage & dst_out);
00048 
00049 protected:
00050   virtual void inputChanged(SoField * which);
00051   virtual void evaluate(void);
00052 
00053 }; // SoHeightMapToNormalMap
00054 
00055 #endif // !COIN_SOHEIGHTMAPTONORMALMAP_H

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