/* * routines for managing runtime display of ray traced scene */ static dispHandle * tachyon_display_create(SceneHandle scene) { dispHandle * dh; dh = (dispHandle *) malloc(sizeof(dispHandle)); if (dh != NULL) { memset(dh, 0, sizeof(dispHandle)); rt_get_resolution(scene, &dh->xsize, &dh->ysize); #if defined(USEOPENGL) || defined(USERTVI) dh->img = malloc((dh->xsize)*(dh->ysize)*3); if (dh->img != NULL) { #if defined(USEOPENGL) dh->glwin = glwin_create("Tachyon Parallel/Multiprocessor Ray Tracer", dh->xsize, dh->ysize); #elif defined(USERTVI) dh->rtviwin = rt_rtvi_init(dh->xsize, dh->ysize); #endif rt_rawimage_rgb24(scene, dh->img); } else { printf("Couldn't allocate image buffer for framebuffer display!!\n"); free(dh); return NULL; } #endif } return dh; }
/* 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; }