aa_level aa_threshold absorption accuracy adaptive adc_bailout agate agate_turb all all_intersections alpha altitude always_sample ambient ambient_light angle aperture append arc_angle area_light array ascii assumed_gamma autostop average b_spline background bezier_spline bicubic_patch black_hole blob blur_samples bounded_by box boxed bozo brick brick_size brightness brilliance bump_map bump_size bumps camera catmull_rom_spline caustics cells charset checker circular clipped_by clock clock_delta clock_on collect component composite cone confidence conic_sweep conserve_energy contained_by control0 control1 coords count crackle crand cubic cubic_spline cubic_wave cutaway_textures cylinder cylindrical defined density density_file density_map dents df3 difference diffuse direction disc dispersion dispersion_samples dist_exp distance double_illuminate eccentricity emission error error_bound evaluate expand_thresholds exponent exterior extinction face_indices facets fade_color fade_colour fade_distance fade_power falloff falloff_angle false filter final_clock final_frame fisheye flatness flip floor focal_point fog fog_alt fog_offset fog_type form frame_number frequency fresnel function gather gif global_lights global_settings gradient granite gray gray_threshold h_angle height_field hexagon hf_gray_16 hierarchy hollow hypercomplex if iff image_height image_map image_pattern image_width initial_clock initial_frame inside interior interior_texture internal interpolate intersection intervals inverse ior irid irid_wavelength isosurface jitter jpeg julia julia_fractal lambda lathe leopard light_group light_source linear_spline linear_sweep ln load_file location look_at looks_like low_error_factor magnet major_radius mandel map_type marble material material_map matrix max_extent max_gradient max_intersections max_iteration max_sample max_trace max_trace_level media media_attenuation media_interaction merge mesh mesh2 metallic method metric min_extent minimum_reuse mortar nearest_count no no_bump_scale no_image no_reflection no_shadow noise_generator normal_indices normal_map normal_vectors number_of_waves object octaves off offset omega omnimax on once onion open orient orientation orthographic panoramic parallel parametric pass_through pattern perspective pgm phase phong phong_size photons pi pigment_map pigment_pattern planar plane png point_at poly poly_wave polygon pot ppm precision precompute pretrace_end pretrace_start prism projected_through quadratic_spline quadric quartic quaternion quick_color quick_colour quilted radial rainbow ramp_wave range range_divider ratio recursion_limit reflection reflection_exponent refraction repeat right ripples rotate roughness samples save_file scale scallop_wave scattering select shadowless sine_wave size sky sky_sphere slice slope slope_map smooth smooth_triangle solid sor spacing specular sphere sphere_sweep spherical spiral1 spiral2 spline split_union spotlight spotted strength sturm superellipsoid sys t target text texture texture_list texture_map tga thickness threshold tiff tightness tile2 tiles tolerance toroidal torus trace transform translate transmit triangle triangle_wave true ttf turb_depth turbulence type u u_steps ultra_wide_angle union up use_alpha use_color use_colour use_index utf8 uv_indices uv_mapping uv_vectors v v_angle v_steps variance vertex_vectors vstr vturbulence warp water_level waves while width wood wrinkles x y yes z #break #case #debug #declare #default #else #end #fclose #local #fopen #if #ifdef #ifndef #include #macro #read #render #statistics #switch #undef #version #warning #write blue color color_map colour colour_map finish green normal pigment red rgb rgbf rgbft rgbt abs acos acosh asc asin asinh atan atan2 atanh ceil concat cos cosh chr cube degrees dimension_size dimensions div exp file_exists int log max min mod pow pwr rand radians radiosity radius reciprocal seed sin sinh sqr sqrt strcmp strlen str strlwr strupr substr tan tanh val vaxis_rotate vcross vdot vlength vnormalize vrotate