1 /* -------------------------------------------------------------------------------
3 Copyright (C) 1999-2007 id Software, Inc. and contributors.
4 For a list of contributors, see the accompanying CONTRIBUTORS file.
6 This file is part of GtkRadiant.
8 GtkRadiant is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 GtkRadiant is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GtkRadiant; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 ----------------------------------------------------------------------------------
24 This code has been altered significantly from its original form, to support
25 several games based on the Quake III Arena engine, in the form of "Q3Map2."
27 ------------------------------------------------------------------------------- */
43 converts a bsp drawsurface to an obj chunk
46 int objVertexCount = 0;
47 int objLastShaderNum = -1;
48 static void ConvertSurfaceToOBJ( FILE *f, bspModel_t *model, int modelNum, bspDrawSurface_t *ds, int surfaceNum, vec3_t origin )
50 int i, v, face, a, b, c;
54 int startVert = objVertexCount;
56 /* ignore patches for now */
57 if( ds->surfaceType != MST_PLANAR && ds->surfaceType != MST_TRIANGLE_SOUP )
60 fprintf(f, "g mat%dmodel%dsurf%d\r\n", ds->shaderNum, modelNum, surfaceNum);
61 switch( ds->surfaceType )
64 fprintf( f, "# SURFACETYPE MST_PLANAR\r\n" );
66 case MST_TRIANGLE_SOUP:
67 fprintf( f, "# SURFACETYPE MST_TRIANGLE_SOUP\r\n" );
72 if(objLastShaderNum != ds->shaderNum)
74 fprintf(f, "usemtl %s\r\n", bspShaders[ds->shaderNum].shader);
75 objLastShaderNum = ds->shaderNum;
79 for( i = 0; i < ds->numVerts; i++ )
81 v = i + ds->firstVert;
82 dv = &bspDrawVerts[ v ];
83 fprintf(f, "# vertex %d\r\n", i + objVertexCount + 1);
84 fprintf(f, "v %f %f %f\r\n", dv->xyz[ 0 ], dv->xyz[ 1 ], dv->xyz[ 2 ]);
85 fprintf(f, "vn %f %f %f\r\n", dv->normal[ 0 ], dv->normal[ 1 ], dv->normal[ 2 ]);
86 fprintf(f, "vt %f %f\r\n", dv->st[ 0 ], dv->st[ 1 ]);
87 fprintf(f, "# vt %f %f\r\n", dv->lightmap[0][0], dv->lightmap[0][1]);
91 for( i = 0; i < ds->numIndexes; i += 3 )
94 a = bspDrawIndexes[ i + ds->firstIndex ];
95 c = bspDrawIndexes[ i + ds->firstIndex + 1 ];
96 b = bspDrawIndexes[ i + ds->firstIndex + 2 ];
97 fprintf(f, "f %d/%d/%d %d/%d/%d %d/%d/%d\r\n",
98 a + objVertexCount + 1, a + objVertexCount + 1, a + objVertexCount + 1,
99 b + objVertexCount + 1, b + objVertexCount + 1, b + objVertexCount + 1,
100 c + objVertexCount + 1, c + objVertexCount + 1, c + objVertexCount + 1
104 objVertexCount += ds->numVerts;
111 exports a bsp model to an ase chunk
114 static void ConvertModelToOBJ( FILE *f, bspModel_t *model, int modelNum, vec3_t origin )
117 bspDrawSurface_t *ds;
120 /* go through each drawsurf in the model */
121 for( i = 0; i < model->numBSPSurfaces; i++ )
123 s = i + model->firstBSPSurface;
124 ds = &bspDrawSurfaces[ s ];
125 ConvertSurfaceToOBJ( f, model, modelNum, ds, s, origin );
133 exports a bsp shader to an ase chunk
136 static void ConvertShaderToMTL( FILE *f, bspShader_t *shader, int shaderNum )
139 char *c, filename[ 1024 ];
143 si = ShaderInfoForShader( shader->shader );
146 Sys_Printf( "WARNING: NULL shader in BSP\n" );
150 /* set bitmap filename */
151 if( si->shaderImage->filename[ 0 ] != '*' )
152 strcpy( filename, si->shaderImage->filename );
154 sprintf( filename, "%s.tga", si->shader );
155 for( c = filename; *c != '\0'; c++ )
159 /* print shader info */
160 fprintf( f, "newmtl %s\r\n", shader->shader );
161 fprintf( f, "Kd %f %f %f\r\n", si->color[ 0 ], si->color[ 1 ], si->color[ 2 ] );
163 fprintf( f, "map_Kd %s\r\n", shader->shader );
165 fprintf( f, "map_Kd %s\r\n", filename );
172 exports an 3d studio ase file from the bsp
175 int ConvertBSPToOBJ( char *bspName )
184 char name[ 1024 ], base[ 1024 ];
188 Sys_Printf( "--- Convert BSP to OBJ ---\n" );
190 /* create the ase filename from the bsp name */
191 strcpy( name, bspName );
192 StripExtension( name );
193 strcat( name, ".obj" );
194 Sys_Printf( "writing %s\n", name );
195 strcpy( mtlname, bspName );
196 StripExtension( mtlname );
197 strcat( mtlname, ".mtl" );
198 Sys_Printf( "writing %s\n", mtlname );
200 ExtractFileBase( bspName, base );
201 strcat( base, ".bsp" );
204 f = fopen( name, "wb" );
206 Error( "Open failed on %s\n", name );
207 fmtl = fopen( mtlname, "wb" );
209 Error( "Open failed on %s\n", mtlname );
212 fprintf( f, "o %s\r\n", base );
213 fprintf( f, "# Generated by Q3Map2 (ydnar) -convert -format obj\r\n" );
214 fprintf( f, "mtllib %s\r\n", mtlname );
216 fprintf( fmtl, "# Generated by Q3Map2 (ydnar) -convert -format obj\r\n" );
217 for( i = 0; i < numBSPShaders; i++ )
219 shader = &bspShaders[ i ];
220 ConvertShaderToMTL( fmtl, shader, i );
223 /* walk entity list */
224 for( i = 0; i < numEntities; i++ )
226 /* get entity and model */
232 key = ValueForKey( e, "model" );
233 if( key[ 0 ] != '*' )
235 modelNum = atoi( key + 1 );
237 model = &bspModels[ modelNum ];
239 /* get entity origin */
240 key = ValueForKey( e, "origin" );
241 if( key[ 0 ] == '\0' )
242 VectorClear( origin );
244 GetVectorForKey( e, "origin", origin );
247 ConvertModelToOBJ( f, model, modelNum, origin );
250 /* close the file and return */
254 /* return to sender */