static errcode GetFog(parsehandle * ph, SceneHandle scene) {
char tmp[255];
apicolor fogcol;
float start, end, density;
errcode rc = PARSENOERR;
fscanf(ph->ifp, "%s", tmp);
if (!stringcmp(tmp, "LINEAR")) {
rt_fog_mode(scene, RT_FOG_LINEAR);
} else if (!stringcmp(tmp, "EXP")) {
rt_fog_mode(scene, RT_FOG_EXP);
} else if (!stringcmp(tmp, "EXP2")) {
rt_fog_mode(scene, RT_FOG_EXP2);
} else if (!stringcmp(tmp, "OFF")) {
rt_fog_mode(scene, RT_FOG_NONE);
}
rc |= GetString(ph, "START");
fscanf(ph->ifp, "%f", &start);
rc |= GetString(ph, "END");
fscanf(ph->ifp, "%f", &end);
rc |= GetString(ph, "DENSITY");
fscanf(ph->ifp, "%f", &density);
rc |= GetColor(ph, &fogcol);
rt_fog_parms(scene, fogcol, start, end, density);
return PARSENOERR;
}
/* 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;
}