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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 #include "std3d.h"
+00027 
+00028 #include "3d/vegetable_shape.h"
+00029 #include "nel/misc/path.h"
+00030 #include "nel/misc/file.h"
+00031 
+00032 
+00033 using namespace std;
+00034 using namespace NLMISC;
+00035 
+00036 
+00037 namespace NL3D 
+00038 {
+00039 
+00040 
+00041 // ***************************************************************************
+00042 CVegetableShape::CVegetableShape()
+00043 {
+00044         Lighted= false;
+00045         DoubleSided= false;
+00046         PreComputeLighting= false;
+00047         AlphaBlend= false;
+00048         BestSidedPreComputeLighting= false;
+00049 }
+00050 
+00051 // ***************************************************************************
+00052 void            CVegetableShape::build(CVegetableShapeBuild &vbuild)
+00053 {
+00054         // Must have TexCoord0.
+00055         nlassert( vbuild.VB.getVertexFormat() & CVertexBuffer::TexCoord0Flag );
+00056 
+00057         // Header
+00058         //---------
+00059 
+00060         // Lighted ?
+00061         if(vbuild.Lighted && ( vbuild.VB.getVertexFormat() & CVertexBuffer::NormalFlag) )
+00062                 Lighted= true;
+00063         else
+00064                 Lighted= false;
+00065 
+00066         // DoubleSided
+00067         DoubleSided= vbuild.DoubleSided;
+00068 
+00069         // PreComputeLighting.
+00070         PreComputeLighting= Lighted && vbuild.PreComputeLighting;
+00071 
+00072         // AlphaBlend: valid only for 2Sided and Unlit (or similar PreComputeLighting) mode
+00073         AlphaBlend= vbuild.AlphaBlend && DoubleSided && (!Lighted || PreComputeLighting);
+00074 
+00075         // BestSidedPreComputeLighting
+00076         BestSidedPreComputeLighting= PreComputeLighting && vbuild.BestSidedPreComputeLighting;
+00077 
+00078         // BendCenterMode
+00079         BendCenterMode= vbuild.BendCenterMode;
+00080 
+00081         // Format of the VB.
+00082         uint32  format;
+00083         format= CVertexBuffer::PositionFlag | CVertexBuffer::TexCoord0Flag | CVertexBuffer::TexCoord1Flag;
+00084         // lighted?
+00085         if(Lighted)
+00086                 format|= CVertexBuffer::NormalFlag;
+00087         // set VB.
+00088         VB.setVertexFormat(format);
+00089 
+00090 
+00091         // Fill triangles.
+00092         //---------
+00093         uint    i;
+00094         // resisz
+00095         TriangleIndices.resize(vbuild.PB.getNumTri() * 3);
+00096         uint32  *srcTri= vbuild.PB.getTriPointer();
+00097         // fill
+00098         for(i=0; i<vbuild.PB.getNumTri(); i++)
+00099         {
+00100                 TriangleIndices[i*3+0]= *(srcTri++);
+00101                 TriangleIndices[i*3+1]= *(srcTri++);
+00102                 TriangleIndices[i*3+2]= *(srcTri++);
+00103         }
+00104 
+00105 
+00106         // Fill vertices.
+00107         //---------
+00108         // resize
+00109         uint32          nbVerts= vbuild.VB.getNumVertices();
+00110         VB.setNumVertices(nbVerts);
+00111         // if no vertex color, 
+00112         float   maxZ= 0;
+00113         bool    bendFromColor= true;
+00114         if(! (vbuild.VB.getVertexFormat() & CVertexBuffer::PrimaryColorFlag) )
+00115         {
+00116                 // must compute bendWeight from z.
+00117                 bendFromColor= false;
+00118                 // get the maximum Z.
+00119                 for(i=0;i<nbVerts;i++)
+00120                 {
+00121                         float   z= ((CVector*)vbuild.VB.getVertexCoordPointer(i))->z;
+00122                         maxZ= max(z, maxZ);
+00123                 }
+00124                 // if no positive value, bend will always be 0.
+00125                 if(maxZ==0)
+00126                         maxZ= 1;
+00127         }
+00128 
+00129         // For all vertices, fill
+00130         for(i=0;i<nbVerts;i++)
+00131         {
+00132                 // Position.
+00133                 CVector         *srcPos= (CVector*)vbuild.VB.getVertexCoordPointer(i);
+00134                 CVector         *dstPos= (CVector*)VB.getVertexCoordPointer(i);
+00135                 *dstPos= *srcPos;
+00136 
+00137                 // Normal
+00138                 if(Lighted)
+00139                 {
+00140                         CVector         *srcNormal= (CVector*)vbuild.VB.getNormalCoordPointer(i);
+00141                         CVector         *dstNormal= (CVector*)VB.getNormalCoordPointer(i);
+00142                         *dstNormal= *srcNormal;
+00143                 }
+00144 
+00145                 // Texture.
+00146                 CUV             *srcUV= (CUV*)vbuild.VB.getTexCoordPointer(i, 0);
+00147                 CUV             *dstUV= (CUV*)VB.getTexCoordPointer(i, 0);
+00148                 *dstUV= *srcUV;
+00149 
+00150                 // Bend.
+00151                 // copy to texture stage 1.
+00152                 CUV             *dstUVBend= (CUV*)VB.getTexCoordPointer(i, 1);
+00153                 if(bendFromColor)
+00154                 {
+00155                         CRGBA   *srcColor= (CRGBA*)vbuild.VB.getColorPointer(i);
+00156                         // Copy and scale by MaxBendWeight
+00157                         dstUVBend->U= (srcColor->R / 255.f) * vbuild.MaxBendWeight;
+00158                 }
+00159                 else
+00160                 {
+00161                         float   w= srcPos->z / maxZ;
+00162                         w= max(w, 0.f);
+00163                         // Copy and scale by MaxBendWeight
+00164                         dstUVBend->U= w * vbuild.MaxBendWeight;
+00165                 }
+00166         }
+00167 
+00168 
+00169         // Misc.
+00170         //---------
+00171         // prepare for instanciation
+00172         InstanceVertices.resize(VB.getNumVertices());
+00173 
+00174 }
+00175 
+00176 // ***************************************************************************
+00177 void            CVegetableShape::loadShape(const std::string &shape)
+00178 {
+00179         string  path= CPath::lookup(shape);
+00180         // read this file
+00181         CIFile  f(path);
+00182         serial(f);
+00183 }
+00184 
+00185 // ***************************************************************************
+00186 void            CVegetableShape::serial(NLMISC::IStream &f)
+00187 {
+00188         /*
+00189         Version 1: 
+00190                 - BestSidedPreComputeLighting
+00191         */
+00192         sint    ver= f.serialVersion(1);
+00193         f.serialCheck((uint32)'_LEN');
+00194         f.serialCheck((uint32)'GEV_');
+00195         f.serialCheck((uint32)'BATE');
+00196         f.serialCheck((uint32)'__EL');
+00197 
+00198         f.serial(Lighted);
+00199         f.serial(DoubleSided);
+00200         f.serial(PreComputeLighting);
+00201         f.serial(AlphaBlend);
+00202         f.serialEnum(BendCenterMode);
+00203         f.serial(VB);
+00204         f.serialCont(TriangleIndices);
+00205 
+00206         if(ver>=1)
+00207                 f.serial(BestSidedPreComputeLighting);
+00208         else if(f.isReading())
+00209                 BestSidedPreComputeLighting= false;
+00210 
+00211         // if reading
+00212         if(f.isReading())
+00213         {
+00214                 // prepare for instanciation
+00215                 InstanceVertices.resize(VB.getNumVertices());
+00216         }
+00217 }
+00218 
+00219 
+00220 
+00221 } // NL3D
+
vegetable_shape.cpp
