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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_MESHVP_WIND_TREE_H
+00027 #define NL_MESHVP_WIND_TREE_H
+00028 
+00029 #include "nel/misc/types_nl.h"
+00030 #include "3d/mesh_vertex_program.h"
+00031 #include "3d/vertex_program.h"
+00032 
+00033 
+00034 namespace NL3D {
+00035 
+00036 
+00037 // ***************************************************************************
+00044 class CMeshVPWindTree : public IMeshVertexProgram
+00045 {
+00046 public:
+00047         
+00048 
+00049         enum    {HrcDepth= 3};
+00050 
+00052         // @{
+00053 
+00055         float           Frequency[HrcDepth];
+00057         float           FrequencyWindFactor[HrcDepth];
+00059         float           PowerXY[HrcDepth];
+00061         float           PowerZ[HrcDepth];
+00063         float           Bias[HrcDepth];
+00064 
+00066         bool            SpecularLighting;
+00067 
+00068         // @}
+00069 
+00070 public:
+00071 
+00073         CMeshVPWindTree();
+00074         virtual ~CMeshVPWindTree();
+00075 
+00076 
+00078         // @{
+00079 
+00081         virtual void    initInstance(CMeshBaseInstance *mbi);
+00083         virtual bool    begin(IDriver *drv,
+00084                                                   CScene *scene,
+00085                                                   CMeshBaseInstance *mbi,
+00086                                                   const NLMISC::CMatrix &invertedModelMat,
+00087                                                   const NLMISC::CVector & /*viewerPos*/);
+00089         virtual void    end(IDriver *drv);      
+00090 
+00091         // Setup this shader for the given material. 
+00092         virtual void    setupForMaterial(const CMaterial &mat,
+00093                                                                          IDriver *drv,
+00094                                                                          CScene *scene,
+00095                                                                          CVertexBuffer *vb);
+00096         // hard vb version
+00097         virtual void    setupForMaterial(const CMaterial &mat,
+00098                                                                          IDriver *drv,
+00099                                                                          CScene *scene,
+00100                                                                          IVertexBufferHard *vb);
+00101 
+00102 
+00103 
+00104         // Serial.
+00105         virtual void    serial(NLMISC::IStream &f) throw(NLMISC::EStream);
+00106         NLMISC_DECLARE_CLASS(CMeshVPWindTree);
+00107 
+00108         // @}
+00109 
+00110 private:
+00111         void    setupLighting(CScene *scene, CMeshBaseInstance *mbi, const NLMISC::CMatrix &invertedModelMat);
+00112 private:
+00113 
+00114         enum { NumVp = 16};     
+00115 
+00119         static  std::auto_ptr<CVertexProgram>   _VertexProgram[NumVp];
+00120 
+00121         // WindTree Time for this mesh param setup. Stored in mesh because same for all instances.
+00122         float           _CurrentTime[HrcDepth];
+00123         double          _LastSceneTime;
+00124 
+00125         // maximum amplitude vector for each level. Stored in mesh because same for all instances.
+00126         CVector         _MaxDeltaPos[HrcDepth];
+00127 
+00128 
+00129         // Compute a cosinus with an angle given in 0-1 <=> 0-2Pi. Actual values goes from 0 to 2.
+00130         static float    speedCos(float angle);
+00131 
+00132         
+00133         
+00134         
+00135 };
+00136 
+00137 
+00138 } // NL3D
+00139 
+00140 
+00141 #endif // NL_MESHVP_WIND_TREE_H
+00142 
+00143 /* End of meshvp_wind_tree.h */
+