327 lines
8.4 KiB
C
327 lines
8.4 KiB
C
/* -------------------------------------------------------------------------------
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Copyright (C) 1999-2007 id Software, Inc. and contributors.
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For a list of contributors, see the accompanying CONTRIBUTORS file.
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This file is part of GtkRadiant.
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GtkRadiant is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GtkRadiant is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GtkRadiant; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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----------------------------------------------------------------------------------
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This code has been altered significantly from its original form, to support
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several games based on the Quake III Arena engine, in the form of "Q3Map2."
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------------------------------------------------------------------------------- */
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/* marker */
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#define CONVERT_ASE_C
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/* dependencies */
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#include "vmap.h"
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/*
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ConvertSurface()
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converts a bsp drawsurface to an obj chunk
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*/
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int firstLightmap = 0;
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int lastLightmap = -1;
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static void ConvertLightmapToMTL( FILE *f, const char *base, int lightmapNum );
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int objVertexCount = 0;
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int objLastShaderNum = -1;
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static void ConvertSurfaceToOBJ( FILE *f, bspModel_t *model, int modelNum, bspDrawSurface_t *ds, int surfaceNum, vec3_t origin ){
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int i, v, a, b, c;
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bspDrawVert_t *dv;
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/* ignore patches for now */
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if ( ds->surfaceType != MST_PLANAR && ds->surfaceType != MST_TRIANGLE_SOUP ) {
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return;
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}
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fprintf( f, "g mat%dmodel%dsurf%d\r\n", ds->shaderNum, modelNum, surfaceNum );
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switch ( ds->surfaceType )
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{
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case MST_PLANAR:
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fprintf( f, "# SURFACETYPE MST_PLANAR\r\n" );
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break;
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case MST_TRIANGLE_SOUP:
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fprintf( f, "# SURFACETYPE MST_TRIANGLE_SOUP\r\n" );
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break;
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}
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/* export shader */
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if ( lightmapsAsTexcoord ) {
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if ( objLastShaderNum != ds->lightmapNum[0] ) {
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fprintf( f, "usemtl lm_%04d\r\n", ds->lightmapNum[0] + deluxemap );
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objLastShaderNum = ds->lightmapNum[0] + deluxemap;
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}
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if ( ds->lightmapNum[0] + (int)deluxemap < firstLightmap ) {
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Sys_FPrintf( SYS_WRN, "WARNING: lightmap %d out of range (exporting anyway)\n", ds->lightmapNum[0] + deluxemap );
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firstLightmap = ds->lightmapNum[0] + deluxemap;
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}
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if ( ds->lightmapNum[0] > lastLightmap ) {
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Sys_FPrintf( SYS_WRN, "WARNING: lightmap %d out of range (exporting anyway)\n", ds->lightmapNum[0] + deluxemap );
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lastLightmap = ds->lightmapNum[0] + deluxemap;
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}
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}
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else
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{
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if ( objLastShaderNum != ds->shaderNum ) {
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fprintf( f, "usemtl %s\r\n", bspShaders[ds->shaderNum].shader );
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objLastShaderNum = ds->shaderNum;
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}
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}
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/* export vertex */
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for ( i = 0; i < ds->numVerts; i++ )
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{
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v = i + ds->firstVert;
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dv = &bspDrawVerts[ v ];
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fprintf( f, "# vertex %d\r\n", i + objVertexCount + 1 );
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fprintf( f, "v %f %f %f\r\n", dv->xyz[ 0 ], dv->xyz[ 1 ], dv->xyz[ 2 ] );
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fprintf( f, "vn %f %f %f\r\n", dv->normal[ 0 ], dv->normal[ 1 ], dv->normal[ 2 ] );
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if ( lightmapsAsTexcoord ) {
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fprintf( f, "vt %f %f\r\n", dv->lightmap[0][0], 1.0 - dv->lightmap[0][1] );
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}
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else{
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fprintf( f, "vt %f %f\r\n", dv->st[ 0 ], 1.0 - dv->st[ 1 ] );
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}
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}
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/* export faces */
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for ( i = 0; i < ds->numIndexes; i += 3 )
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{
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a = bspDrawIndexes[ i + ds->firstIndex ];
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c = bspDrawIndexes[ i + ds->firstIndex + 1 ];
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b = bspDrawIndexes[ i + ds->firstIndex + 2 ];
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fprintf( f, "f %d/%d/%d %d/%d/%d %d/%d/%d\r\n",
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a + objVertexCount + 1, a + objVertexCount + 1, a + objVertexCount + 1,
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b + objVertexCount + 1, b + objVertexCount + 1, b + objVertexCount + 1,
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c + objVertexCount + 1, c + objVertexCount + 1, c + objVertexCount + 1
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);
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}
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objVertexCount += ds->numVerts;
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}
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/*
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ConvertModel()
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exports a bsp model to an ase chunk
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*/
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static void ConvertModelToOBJ( FILE *f, bspModel_t *model, int modelNum, vec3_t origin ){
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int i, s;
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bspDrawSurface_t *ds;
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/* go through each drawsurf in the model */
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for ( i = 0; i < model->numBSPSurfaces; i++ )
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{
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s = i + model->firstBSPSurface;
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ds = &bspDrawSurfaces[ s ];
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ConvertSurfaceToOBJ( f, model, modelNum, ds, s, origin );
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}
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}
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/*
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ConvertShader()
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exports a bsp shader to an ase chunk
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*/
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static void ConvertShaderToMTL( FILE *f, bspShader_t *shader, int shaderNum ){
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shaderInfo_t *si;
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char filename[ 1024 ];
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/* get shader */
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si = ShaderInfoForShader( shader->shader, 0 );
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if ( si == NULL ) {
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Sys_FPrintf( SYS_WRN, "WARNING: NULL shader in BSP\n" );
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return;
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}
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/* set bitmap filename */
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if ( si->shaderImage->filename[ 0 ] != '*' ) {
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strcpy( filename, si->shaderImage->filename );
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}
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else{
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sprintf( filename, "%s.tga", si->shader );
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}
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/* blender hates this, so let's not do it
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for( c = filename; *c != '\0'; c++ )
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if( *c == '/' )
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* c = '\\';
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*/
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/* print shader info */
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fprintf( f, "newmtl %s\r\n", shader->shader );
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fprintf( f, "Kd %f %f %f\r\n", si->color[ 0 ], si->color[ 1 ], si->color[ 2 ] );
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if ( shadersAsBitmap ) {
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fprintf( f, "map_Kd %s\r\n", shader->shader );
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}
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else{
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/* blender hates this, so let's not do it
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fprintf( f, "map_Kd ..\\%s\r\n", filename );
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*/
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fprintf( f, "map_Kd ../%s\r\n", filename );
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}
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}
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static void ConvertLightmapToMTL( FILE *f, const char *base, int lightmapNum ){
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/* print shader info */
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fprintf( f, "newmtl lm_%04d\r\n", lightmapNum );
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if ( lightmapNum >= 0 ) {
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/* blender hates this, so let's not do it
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fprintf( f, "map_Kd %s\\lm_%04d.tga\r\n", base, lightmapNum );
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*/
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fprintf( f, "map_Kd %s/lm_%04d.tga\r\n", base, lightmapNum );
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}
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}
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/*
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ConvertBSPToASE()
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exports an 3d studio ase file from the bsp
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*/
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int ConvertBSPToOBJ( char *bspName ){
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int i, modelNum;
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FILE *f, *fmtl;
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bspShader_t *shader;
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bspModel_t *model;
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entity_t *e;
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vec3_t origin;
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const char *key;
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char name[ 1024 ], base[ 1024 ], mtlname[ 1024 ], dirname[ 1024 ];
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/* note it */
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Sys_Printf( "--- Convert BSP to OBJ ---\n" );
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/* create the ase filename from the bsp name */
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strcpy( dirname, bspName );
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StripExtension( dirname );
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strcpy( name, bspName );
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StripExtension( name );
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strcat( name, ".obj" );
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Sys_Printf( "writing %s\n", name );
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strcpy( mtlname, bspName );
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StripExtension( mtlname );
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strcat( mtlname, ".mtl" );
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Sys_Printf( "writing %s\n", mtlname );
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ExtractFileBase( bspName, base );
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/* open it */
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f = fopen( name, "wb" );
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if ( f == NULL ) {
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Error( "Open failed on %s\n", name );
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}
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fmtl = fopen( mtlname, "wb" );
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if ( fmtl == NULL ) {
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Error( "Open failed on %s\n", mtlname );
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}
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/* print header */
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fprintf( f, "o %s\r\n", base );
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fprintf( f, "# Generated by Q3Map2 (ydnar) -convert -format obj\r\n" );
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fprintf( f, "mtllib %s.mtl\r\n", base );
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fprintf( fmtl, "# Generated by Q3Map2 (ydnar) -convert -format obj\r\n" );
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if ( lightmapsAsTexcoord ) {
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int lightmapCount;
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for ( lightmapCount = 0; lightmapCount < numBSPLightmaps; lightmapCount++ )
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;
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for ( ; ; lightmapCount++ )
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{
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char buf[1024];
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FILE *tmp;
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snprintf( buf, sizeof( buf ), "%s/lm_%04d.tga", dirname, lightmapCount );
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buf[sizeof( buf ) - 1] = 0;
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tmp = fopen( buf, "rb" );
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if ( !tmp ) {
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break;
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}
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fclose( tmp );
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}
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lastLightmap = lightmapCount - 1;
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}
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else
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{
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for ( i = 0; i < numBSPShaders; i++ )
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{
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shader = &bspShaders[ i ];
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ConvertShaderToMTL( fmtl, shader, i );
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}
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}
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/* walk entity list */
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for ( i = 0; i < numEntities; i++ )
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{
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/* get entity and model */
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e = &entities[ i ];
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if ( i == 0 ) {
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modelNum = 0;
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}
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else
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{
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key = ValueForKey( e, "model" );
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if ( key[ 0 ] != '*' ) {
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continue;
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}
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modelNum = atoi( key + 1 );
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}
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model = &bspModels[ modelNum ];
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/* get entity origin */
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key = ValueForKey( e, "origin" );
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if ( key[ 0 ] == '\0' ) {
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VectorClear( origin );
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}
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else{
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GetVectorForKey( e, "origin", origin );
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}
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/* convert model */
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ConvertModelToOBJ( f, model, modelNum, origin );
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}
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if ( lightmapsAsTexcoord ) {
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for ( i = firstLightmap; i <= lastLightmap; i++ )
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ConvertLightmapToMTL( fmtl, base, i );
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}
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/* close the file and return */
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fclose( f );
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fclose( fmtl );
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/* return to sender */
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return 0;
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}
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