openmohaa/code/tools/md5_2_skX/writeobj.c
2016-03-27 11:49:47 +02:00

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2.3 KiB
C

/*
===========================================================================
Copyright (C) 2012 su44
This file is part of md5_2_skX source code.
md5_2_skX source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
md5_2_skX source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with md5_2_skX source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
// writeobj.c - Wavefront Obj exporting, not really needed,
// but used by me to debug absolute vertex positions in skeletal models
#include "md5_2_skX.h"
void WriteOBJ(const char *outFName, tModel_t *m, bone_t *bones) {
FILE *out;
int numVerts;
int i, j;
tSurf_t *sf;
tTri_t *t;
tVert_t *v;
// calculate absolute vertex positions
CalcModelXYZVerticesForBones(m,bones);
T_Printf("Writing Wavefront obj file %s...\n",outFName);
out = F_Open(outFName,"w");
sf = m->surfs;
for(i = 0; i < m->numSurfaces; i++, sf++) {
v = sf->verts;
for(j = 0; j < sf->numVerts; j++, v++) {
fprintf(out,"v %f %f %f\n",v->absXYZ[0],v->absXYZ[1],v->absXYZ[2]);
fprintf(out,"vt %f %f\n",v->texCoords[0],v->texCoords[1]);
}
}
numVerts = 1; // 1, because in obj indexes start at 1, not 0
sf = m->surfs;
for(i = 0; i < m->numSurfaces; i++, sf++) {
fprintf(out,"usemtl %s\n",sf->name);
t = sf->tris;
for(j = 0; j < sf->numTris; j++, t++) {
fprintf(out,"f %i %i %i\n",numVerts + t->indexes[2],numVerts + t->indexes[1],numVerts + t->indexes[0]);
}
numVerts += sf->numVerts;
}
fclose(out);
T_Printf("Wrote %s.\n",outFName);
}
void WriteOBJ_FromBaseFrame(const char *outFName, tModel_t *m) {
WriteOBJ(outFName,m,m->baseFrame);
}
void WriteOBJ_FromAnim(const char *outFName, tModel_t *m, tAnim_t *a) {
bone_t *bones;
bones = setupMD5AnimBones(a,0);
md5AnimateBones(m,bones);
WriteOBJ(outFName,m,bones);
}