/* 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;
}
static errcode GetCamera(parsehandle * ph, SceneHandle scene) {
apivector Ccenter, Cview, Cup;
apiflt zoom, aspectratio;
int raydepth, antialiasing;
float a, b, c, d;
errcode rc = PARSENOERR;
char data[255];
fscanf(ph->ifp, "%s", data);
if (stringcmp(data, "PROJECTION") == 0) {
fscanf(ph->ifp, "%s", data);
if (stringcmp(data, "FISHEYE") ==0) {
rt_camera_projection(scene, RT_PROJECTION_FISHEYE);
} else if (stringcmp(data, "PERSPECTIVE") ==0) {
rt_camera_projection(scene, RT_PROJECTION_PERSPECTIVE);
} else if (stringcmp(data, "PERSPECTIVE_DOF") ==0) {
rt_camera_projection(scene, RT_PROJECTION_PERSPECTIVE_DOF);
rc |= GetString(ph, "FOCALLENGTH");
fscanf(ph->ifp, "%f", &a);
rc |= GetString(ph, "APERTURE");
fscanf(ph->ifp, "%f", &b);
rt_camera_dof(scene, a, b);
} else if (stringcmp(data, "ORTHOGRAPHIC") ==0) {
rt_camera_projection(scene, RT_PROJECTION_ORTHOGRAPHIC);
}
rc |= GetString(ph, "ZOOM");
fscanf(ph->ifp, "%f", &a);
zoom=a;
} else if (stringcmp(data, "ZOOM") == 0) {
fscanf(ph->ifp, "%f", &a);
zoom=a;
} else {
rc = PARSEBADSYNTAX;
return rc;
}
rc |= GetString(ph, "ASPECTRATIO");
fscanf(ph->ifp, "%f", &b);
aspectratio=b;
rc |= GetString(ph, "ANTIALIASING");
fscanf(ph->ifp, "%d", &antialiasing);
rc |= GetString(ph, "RAYDEPTH");
fscanf(ph->ifp, "%d", &raydepth);
rc |= GetString(ph, "CENTER");
fscanf(ph->ifp, "%f %f %f", &a, &b, &c);
Ccenter.x = a;
Ccenter.y = b;
Ccenter.z = c;
rc |= GetString(ph, "VIEWDIR");
fscanf(ph->ifp, "%f %f %f", &a, &b, &c);
Cview.x = a;
Cview.y = b;
Cview.z = c;
rc |= GetString(ph, "UPDIR");
fscanf(ph->ifp, "%f %f %f", &a, &b, &c);
Cup.x = a;
Cup.y = b;
Cup.z = c;
rt_camera_setup(scene, zoom, aspectratio, antialiasing, raydepth,
Ccenter, Cview, Cup);
fscanf(ph->ifp, "%s", data);
if (stringcmp(data, "FRUSTUM") == 0) {
fscanf(ph->ifp, "%f %f %f %f", &a, &b, &c, &d);
rt_camera_frustum(scene, a, b, c, d);
fscanf(ph->ifp, "%s", data);
if (stringcmp(data, "END_CAMERA") != 0) {
rc |= PARSEBADSYNTAX;
return rc;
}
} else if (stringcmp(data, "END_CAMERA") != 0) {
rc |= PARSEBADSYNTAX;
return rc;
}
return rc;
}
