unsigned int readmodel(char * modelfile, SceneHandle scene) {
FILE * dfile;
errcode rc;
reset_tex_table();
dfile=NULL;
dfile=fopen(modelfile,"r");
if (dfile==NULL) {
return PARSEBADFILE;
}
rc = GetScenedefs(dfile, scene);
if (rc != PARSENOERR) {
fclose(dfile);
return rc;
}
scenebackcol.r = 0.0; /* default background is black */
scenebackcol.g = 0.0;
scenebackcol.b = 0.0;
numobjectsparsed=0;
while ((rc = GetObject(dfile, scene)) == PARSENOERR) {
numobjectsparsed++;
}
fclose(dfile);
if (rc == PARSEEOF)
rc = PARSENOERR;
rt_background(scene, scenebackcol);
return rc;
}
static errcode GetBackGnd(parsehandle * ph, SceneHandle scene) {
float r,g,b;
apicolor scenebackcol;
fscanf(ph->ifp, "%f %f %f", &r, &g, &b);
scenebackcol.r=r;
scenebackcol.g=g;
scenebackcol.b=b;
rt_background(scene, scenebackcol);
return PARSENOERR;
}
int NFFGetScenedefs(FILE * dfile, SceneHandle scene) {
apivector Ccenter, Cview, Cup;
apiflt zoom, aspectratio;
int raydepth, antialiasing;
int xres, yres, verbose;
apivector lookat;
float vangle, hither;
NFFGetString(dfile, "from");
NFFGetVector(dfile, &Ccenter);
NFFGetString(dfile, "at");
NFFGetVector(dfile, &lookat);
Cview.x = lookat.x - Ccenter.x;
Cview.y = lookat.y - Ccenter.y;
Cview.z = lookat.z - Ccenter.z;
NFFGetString(dfile, "up");
NFFGetVector(dfile, &Cup);
NFFGetString(dfile, "angle");
fscanf(dfile, "%f", &vangle);
zoom = 1.0; /* XXX fix me later */
aspectratio = 1.0;
NFFGetString(dfile, "hither");
fscanf(dfile, "%f", &hither);
NFFGetString(dfile, "resolution");
fscanf(dfile, "%d %d", &xres, &yres);
antialiasing = 0;
raydepth = 6;
verbose = 0;
rt_outputfile(scene, "outfile.tga");
rt_resolution(scene, xres, yres);
rt_verbose(scene, verbose);
rt_camera_setup(scene, zoom, aspectratio, antialiasing, raydepth,
Ccenter, Cview, Cup);
rt_background(scene, backgr);
return NFFNOERR;
}
unsigned int ParseAC3D(char * modelfile, SceneHandle scene) {
FILE * dfile;
char filehdr[255];
errcode rc;
reset_tex_table();
dfile=NULL;
dfile=fopen(modelfile,"r");
if (dfile==NULL) {
return PARSEBADFILE;
}
fscanf(dfile, "%s", filehdr);
if (strcmp(filehdr, "AC3Db")) {
printf("Unknown version of AC3D Model File Format\n");
fclose(dfile);
return PARSEBADFILE;
}
rc = GetScenedefs(dfile, scene);
if (rc != PARSENOERR)
return rc;
scenebackcol.r = 0.0; /* default background is black */
scenebackcol.g = 0.0;
scenebackcol.b = 0.0;
numobjectsparsed=0;
while ((rc = GetScene(dfile, scene)) == PARSENOERR) {
numobjectsparsed++;
}
fclose(dfile);
if (rc == PARSEEOF)
rc = PARSENOERR;
rt_background(scene, scenebackcol);
return rc;
}
unsigned int ParseNFF(char *nffname, SceneHandle scene) {
FILE * dfile;
backgr.r = 0.0;
backgr.g = 0.0;
backgr.b = 0.0;
if (nffname == NULL) {
return NFFBADFILE;
}
else {
dfile=fopen(nffname,"r");
if (dfile==NULL) {
return NFFBADFILE;
}
}
while (NFFGetObject(dfile, scene) == NFFNOERR);
rt_background(scene, backgr);
return NFFNOERR;
}
/* allocate and initialize a scene with default parameters */
SceneHandle rt_newscene(void) {
scenedef * scene;
SceneHandle voidscene;
apicolor bgcolor = rt_color(0.0, 0.0, 0.0);
apicolor ambcolor = rt_color(1.0, 1.0, 1.0);
scene = (scenedef *) malloc(sizeof(scenedef));
memset(scene, 0, sizeof(scenedef)); /* clear all valuas to 0 */
voidscene = (SceneHandle) scene;
rt_outputfile(voidscene, "/tmp/outfile.tga"); /* default output file */
rt_crop_disable(voidscene); /* disable cropping */
rt_outputformat(voidscene, RT_FORMAT_TARGA); /* default iamge format */
rt_resolution(voidscene, 512, 512); /* 512x512 resolution */
rt_verbose(voidscene, 0); /* verbose messages off */
rt_image_gamma(voidscene, 2.2f); /* set default gamma */
rt_image_clamp(voidscene); /* clamp image colors */
#if 1
rt_rawimage_rgb96f(voidscene, NULL); /* raw image output off */
#else
rt_rawimage_rgb24(voidscene, NULL); /* raw image output off */
#endif
rt_boundmode(voidscene, RT_BOUNDING_ENABLED); /* spatial subdivision on */
rt_boundthresh(voidscene, BOUNDTHRESH); /* default threshold */
rt_camera_setup(voidscene, 1.0, 1.0, 0, 6,
rt_vector(0.0, 0.0, 0.0),
rt_vector(0.0, 0.0, 1.0),
rt_vector(0.0, 1.0, 0.0));
rt_camera_dof(voidscene, 1.0, 0.0);
rt_shadermode(voidscene, RT_SHADER_AUTO);
rt_rescale_lights(voidscene, 1.0);
rt_phong_shader(voidscene, RT_SHADER_BLINN);
rt_background(voidscene, bgcolor);
rt_background_sky_sphere(voidscene, rt_vector(0.0, 1.0, 0.0), 0.3, 0,
rt_color(0.0, 0.0, 0.0), rt_color(0.0, 0.0, 0.5));
rt_background_mode(voidscene, RT_BACKGROUND_TEXTURE_SOLID);
rt_ambient_occlusion(voidscene, 0, ambcolor); /* disable AO by default */
rt_fog_rendering_mode(voidscene, RT_FOG_NORMAL); /* radial fog by default */
rt_fog_mode(voidscene, RT_FOG_NONE); /* disable fog by default */
rt_fog_parms(voidscene, bgcolor, 0.0, 1.0, 1.0);
/* use max positive integer for max transparent surface limit by default */
rt_trans_max_surfaces(voidscene,((((int)1) << ((sizeof(int) * 8) - 2))-1)*2);
rt_trans_mode(voidscene, RT_TRANS_ORIG); /* set transparency mode */
rt_normal_fixup_mode(voidscene, 0); /* disable normal fixup */
rt_shadow_filtering(voidscene, 1); /* shadow filtering on */
scene->objgroup.boundedobj = NULL;
scene->objgroup.unboundedobj = NULL;
scene->objgroup.numobjects = 0;
scene->texlist = NULL;
scene->lightlist = NULL;
scene->cliplist = NULL;
scene->numlights = 0;
scene->scenecheck = 1;
scene->parbuf = NULL;
scene->threads = NULL;
scene->threadparms = NULL;
scene->flags = RT_SHADE_NOFLAGS;
rt_set_numthreads(voidscene, -1); /* auto determine num threads */
/* number of distributed memory nodes, fills in array of node/cpu info */
scene->nodes = rt_getcpuinfo(&scene->cpuinfo);
scene->mynode = rt_mynode();
return scene;
}
