355 lines
10 KiB
C
355 lines
10 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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/* dependencies */
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#include "vmap.h"
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static void ExtrapolateTexcoords( const float *axyz, const float *ast, const float *bxyz, const float *bst, const float *cxyz, const float *cst, const float *axyz_new, float *ast_out, const float *bxyz_new, float *bst_out, const float *cxyz_new, float *cst_out ){
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vec4_t scoeffs, tcoeffs;
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float md;
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m4x4_t solvematrix;
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vec3_t norm;
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vec3_t dab, dac;
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VectorSubtract( bxyz, axyz, dab );
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VectorSubtract( cxyz, axyz, dac );
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CrossProduct( dab, dac, norm );
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// assume:
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// s = f(x, y, z)
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// s(v + norm) = s(v) when n ortho xyz
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// s(v) = DotProduct(v, scoeffs) + scoeffs[3]
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// solve:
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// scoeffs * (axyz, 1) == ast[0]
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// scoeffs * (bxyz, 1) == bst[0]
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// scoeffs * (cxyz, 1) == cst[0]
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// scoeffs * (norm, 0) == 0
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// scoeffs * [axyz, 1 | bxyz, 1 | cxyz, 1 | norm, 0] = [ast[0], bst[0], cst[0], 0]
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solvematrix[0] = axyz[0];
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solvematrix[4] = axyz[1];
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solvematrix[8] = axyz[2];
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solvematrix[12] = 1;
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solvematrix[1] = bxyz[0];
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solvematrix[5] = bxyz[1];
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solvematrix[9] = bxyz[2];
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solvematrix[13] = 1;
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solvematrix[2] = cxyz[0];
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solvematrix[6] = cxyz[1];
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solvematrix[10] = cxyz[2];
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solvematrix[14] = 1;
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solvematrix[3] = norm[0];
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solvematrix[7] = norm[1];
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solvematrix[11] = norm[2];
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solvematrix[15] = 0;
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md = m4_det( solvematrix );
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if ( md * md < 1e-10 ) {
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Sys_Printf( "Cannot invert some matrix, some texcoords aren't extrapolated!" );
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return;
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}
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m4x4_invert( solvematrix );
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scoeffs[0] = ast[0];
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scoeffs[1] = bst[0];
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scoeffs[2] = cst[0];
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scoeffs[3] = 0;
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m4x4_transform_vec4( solvematrix, scoeffs );
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tcoeffs[0] = ast[1];
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tcoeffs[1] = bst[1];
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tcoeffs[2] = cst[1];
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tcoeffs[3] = 0;
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m4x4_transform_vec4( solvematrix, tcoeffs );
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ast_out[0] = scoeffs[0] * axyz_new[0] + scoeffs[1] * axyz_new[1] + scoeffs[2] * axyz_new[2] + scoeffs[3];
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ast_out[1] = tcoeffs[0] * axyz_new[0] + tcoeffs[1] * axyz_new[1] + tcoeffs[2] * axyz_new[2] + tcoeffs[3];
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bst_out[0] = scoeffs[0] * bxyz_new[0] + scoeffs[1] * bxyz_new[1] + scoeffs[2] * bxyz_new[2] + scoeffs[3];
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bst_out[1] = tcoeffs[0] * bxyz_new[0] + tcoeffs[1] * bxyz_new[1] + tcoeffs[2] * bxyz_new[2] + tcoeffs[3];
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cst_out[0] = scoeffs[0] * cxyz_new[0] + scoeffs[1] * cxyz_new[1] + scoeffs[2] * cxyz_new[2] + scoeffs[3];
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cst_out[1] = tcoeffs[0] * cxyz_new[0] + tcoeffs[1] * cxyz_new[1] + tcoeffs[2] * cxyz_new[2] + tcoeffs[3];
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}
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/*
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ScaleBSPMain()
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amaze and confuse your enemies with wierd scaled maps!
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*/
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int ScaleBSPMain( int argc, char **argv ){
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int i, j;
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float f, a;
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vec3_t scale;
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vec3_t vec;
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char str[ 1024 ];
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int uniform, axis;
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qboolean texscale;
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float *old_xyzst = NULL;
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float spawn_ref = 0;
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/* arg checking */
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if ( argc < 3 ) {
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Sys_Printf( "Usage: q3map [-v] -scale [-tex] [-spawn_ref <value>] <value> <mapname>\n" );
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return 0;
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}
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texscale = qfalse;
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for ( i = 1; i < argc - 2; ++i )
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{
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if ( !strcmp( argv[i], "-tex" ) ) {
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texscale = qtrue;
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}
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else if ( !strcmp( argv[i], "-spawn_ref" ) ) {
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spawn_ref = atof( argv[i + 1] );
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++i;
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}
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else{
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break;
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}
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}
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/* get scale */
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// if(argc-2 >= i) // always true
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scale[2] = scale[1] = scale[0] = atof( argv[ argc - 2 ] );
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if ( argc - 3 >= i ) {
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scale[1] = scale[0] = atof( argv[ argc - 3 ] );
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}
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if ( argc - 4 >= i ) {
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scale[0] = atof( argv[ argc - 4 ] );
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}
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uniform = ( ( scale[0] == scale[1] ) && ( scale[1] == scale[2] ) );
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if ( scale[0] == 0.0f || scale[1] == 0.0f || scale[2] == 0.0f ) {
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Sys_Printf( "Usage: q3map [-v] -scale [-tex] [-spawn_ref <value>] <value> <mapname>\n" );
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Sys_Printf( "Non-zero scale value required.\n" );
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return 0;
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}
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/* do some path mangling */
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strcpy( source, ExpandArg( argv[ argc - 1 ] ) );
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StripExtension( source );
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DefaultExtension( source, ".bsp" );
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/* load the bsp */
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Sys_Printf( "Loading %s\n", source );
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LoadBSPFile( source );
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ParseEntities();
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/* note it */
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Sys_Printf( "--- ScaleBSP ---\n" );
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Sys_FPrintf( SYS_VRB, "%9d entities\n", numEntities );
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/* scale entity keys */
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for ( i = 0; i < numBSPEntities && i < numEntities; i++ )
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{
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/* scale origin */
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GetVectorForKey( &entities[ i ], "origin", vec );
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if ( ( vec[ 0 ] || vec[ 1 ] || vec[ 2 ] ) ) {
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if ( !strncmp( ValueForKey( &entities[i], "classname" ), "info_player_", 12 ) ) {
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vec[2] += spawn_ref;
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}
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vec[0] *= scale[0];
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vec[1] *= scale[1];
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vec[2] *= scale[2];
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if ( !strncmp( ValueForKey( &entities[i], "classname" ), "info_player_", 12 ) ) {
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vec[2] -= spawn_ref;
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}
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sprintf( str, "%f %f %f", vec[ 0 ], vec[ 1 ], vec[ 2 ] );
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SetKeyValue( &entities[ i ], "origin", str );
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}
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a = FloatForKey( &entities[ i ], "angle" );
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if ( a == -1 || a == -2 ) { // z scale
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axis = 2;
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}
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else if ( fabs( sin( DEG2RAD( a ) ) ) < 0.707 ) {
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axis = 0;
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}
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else{
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axis = 1;
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}
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/* scale door lip */
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f = FloatForKey( &entities[ i ], "lip" );
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if ( f ) {
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f *= scale[axis];
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sprintf( str, "%f", f );
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SetKeyValue( &entities[ i ], "lip", str );
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}
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/* scale plat height */
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f = FloatForKey( &entities[ i ], "height" );
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if ( f ) {
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f *= scale[2];
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sprintf( str, "%f", f );
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SetKeyValue( &entities[ i ], "height", str );
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}
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// TODO maybe allow a definition file for entities to specify which values are scaled how?
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}
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/* scale models */
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for ( i = 0; i < numBSPModels; i++ )
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{
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bspModels[ i ].mins[0] *= scale[0];
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bspModels[ i ].mins[1] *= scale[1];
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bspModels[ i ].mins[2] *= scale[2];
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bspModels[ i ].maxs[0] *= scale[0];
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bspModels[ i ].maxs[1] *= scale[1];
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bspModels[ i ].maxs[2] *= scale[2];
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}
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/* scale nodes */
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for ( i = 0; i < numBSPNodes; i++ )
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{
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bspNodes[ i ].mins[0] *= scale[0];
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bspNodes[ i ].mins[1] *= scale[1];
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bspNodes[ i ].mins[2] *= scale[2];
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bspNodes[ i ].maxs[0] *= scale[0];
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bspNodes[ i ].maxs[1] *= scale[1];
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bspNodes[ i ].maxs[2] *= scale[2];
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}
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/* scale leafs */
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for ( i = 0; i < numBSPLeafs; i++ )
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{
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bspLeafs[ i ].mins[0] *= scale[0];
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bspLeafs[ i ].mins[1] *= scale[1];
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bspLeafs[ i ].mins[2] *= scale[2];
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bspLeafs[ i ].maxs[0] *= scale[0];
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bspLeafs[ i ].maxs[1] *= scale[1];
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bspLeafs[ i ].maxs[2] *= scale[2];
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}
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if ( texscale ) {
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Sys_Printf( "Using texture unlocking (and probably breaking texture alignment a lot)\n" );
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old_xyzst = safe_malloc( sizeof( *old_xyzst ) * numBSPDrawVerts * 5 );
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for ( i = 0; i < numBSPDrawVerts; i++ )
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{
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old_xyzst[5 * i + 0] = bspDrawVerts[i].xyz[0];
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old_xyzst[5 * i + 1] = bspDrawVerts[i].xyz[1];
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old_xyzst[5 * i + 2] = bspDrawVerts[i].xyz[2];
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old_xyzst[5 * i + 3] = bspDrawVerts[i].st[0];
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old_xyzst[5 * i + 4] = bspDrawVerts[i].st[1];
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}
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}
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/* scale drawverts */
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for ( i = 0; i < numBSPDrawVerts; i++ )
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{
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bspDrawVerts[i].xyz[0] *= scale[0];
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bspDrawVerts[i].xyz[1] *= scale[1];
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bspDrawVerts[i].xyz[2] *= scale[2];
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bspDrawVerts[i].normal[0] /= scale[0];
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bspDrawVerts[i].normal[1] /= scale[1];
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bspDrawVerts[i].normal[2] /= scale[2];
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VectorNormalize( bspDrawVerts[i].normal, bspDrawVerts[i].normal );
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}
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if ( texscale ) {
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for ( i = 0; i < numBSPDrawSurfaces; i++ )
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{
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switch ( bspDrawSurfaces[i].surfaceType )
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{
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case SURFACE_FACE:
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case SURFACE_META:
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if ( bspDrawSurfaces[i].numIndexes % 3 ) {
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Error( "Not a triangulation!" );
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}
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for ( j = bspDrawSurfaces[i].firstIndex; j < bspDrawSurfaces[i].firstIndex + bspDrawSurfaces[i].numIndexes; j += 3 )
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{
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int ia = bspDrawIndexes[j] + bspDrawSurfaces[i].firstVert, ib = bspDrawIndexes[j + 1] + bspDrawSurfaces[i].firstVert, ic = bspDrawIndexes[j + 2] + bspDrawSurfaces[i].firstVert;
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bspDrawVert_t *a = &bspDrawVerts[ia], *b = &bspDrawVerts[ib], *c = &bspDrawVerts[ic];
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float *oa = &old_xyzst[ia * 5], *ob = &old_xyzst[ib * 5], *oc = &old_xyzst[ic * 5];
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// extrapolate:
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// a->xyz -> oa
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// b->xyz -> ob
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// c->xyz -> oc
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ExtrapolateTexcoords(
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&oa[0], &oa[3],
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&ob[0], &ob[3],
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&oc[0], &oc[3],
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a->xyz, a->st,
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b->xyz, b->st,
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c->xyz, c->st );
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}
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break;
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}
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}
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}
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/* scale planes */
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if ( uniform ) {
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for ( i = 0; i < numBSPPlanes; i++ )
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{
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bspPlanes[ i ].dist *= scale[0];
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}
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}
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else
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{
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for ( i = 0; i < numBSPPlanes; i++ )
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{
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bspPlanes[ i ].normal[0] /= scale[0];
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bspPlanes[ i ].normal[1] /= scale[1];
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bspPlanes[ i ].normal[2] /= scale[2];
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f = 1 / VectorLength( bspPlanes[i].normal );
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VectorScale( bspPlanes[i].normal, f, bspPlanes[i].normal );
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bspPlanes[ i ].dist *= f;
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}
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}
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/* scale gridsize */
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GetVectorForKey( &entities[ 0 ], "gridsize", vec );
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if ( ( vec[ 0 ] + vec[ 1 ] + vec[ 2 ] ) == 0.0f ) {
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VectorCopy( gridSize, vec );
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}
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vec[0] *= scale[0];
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vec[1] *= scale[1];
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vec[2] *= scale[2];
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sprintf( str, "%f %f %f", vec[ 0 ], vec[ 1 ], vec[ 2 ] );
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SetKeyValue( &entities[ 0 ], "gridsize", str );
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/* inject command line parameters */
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InjectCommandLine( argv, 0, argc - 1 );
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/* write the bsp */
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UnparseEntities();
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StripExtension( source );
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DefaultExtension( source, "_s.bsp" );
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Sys_Printf( "Writing %s\n", source );
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WriteBSPFile( source );
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/* return to sender */
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return 0;
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}
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