Built in Entities - appleseedhq/appleseed GitHub Wiki

For convenience, appleseed includes a number of built-in entity models, providing a robust foundation with no external dependencies. This document describes these built-in entity models in details.

This document was generated automatically using the dumpmetadata tool that ships with appleseed. In Windows the command to save the output as a markdown file named metadata.md would be: dumpmetadata.exe --format markdown > metadata.md

1. Built-in AOV Models

1.1. The `albedo_aov` Model

1.2. The `cryptomatte_material_aov` Model

1.3. The `cryptomatte_object_aov` Model

1.4. The `depth_aov` Model

1.5. The `diffuse_aov` Model

1.6. The `direct_diffuse_aov` Model

1.7. The `direct_glossy_aov` Model

1.8. The `emission_aov` Model

1.9. The `glossy_aov` Model

1.10. The `indirect_diffuse_aov` Model

1.11. The `indirect_glossy_aov` Model

1.12. The `invalid_samples_aov` Model

1.13. The `normal_aov` Model

1.14. The `npr_contour_aov` Model

1.15. The `npr_shading_aov` Model

1.16. The `pixel_error_aov` Model

1.17. The `pixel_sample_count_aov` Model

1.18. The `pixel_time_aov` Model

1.19. The `pixel_variation_aov` Model

1.20. The `position_aov` Model

1.21. The `screen_space_velocity_aov` Model

1.22. The `uv_aov` Model

2. Built-in BSDF Models

2.1. The `ashikhmin_brdf` Model

Parameter	Label	Presence	Default
`diffuse_reflectance`	Diffuse Reflectance	required	0.5
`diffuse_reflectance_multiplier`	Diffuse Reflectance Multiplier	optional	1.0
`glossy_reflectance`	Glossy Reflectance	required	0.5
`glossy_reflectance_multiplier`	Glossy Reflectance Multiplier	optional	1.0
`fresnel_multiplier`	Fresnel Multiplier	optional	1.0
`shininess_u`	Shininess U	required	100.0
`shininess_v`	Shininess V	required	100.0

2.2. The `blinn_brdf` Model

Parameter	Label	Presence	Default	Description
`exponent`	Exponent	required	0.5
`ior`	Index of Refraction	required	1.5

2.3. The `bsdf_blend` Model

Parameter	Label	Presence	Default
`bsdf0`	BSDF 1	required	None
`bsdf1`	BSDF 2	required	None
`weight`	Weight	required	0.5

2.4. The `bsdf_mix` Model

Parameter	Label	Presence	Default
`bsdf0`	BSDF 1	required	None
`weight0`	Weight 1	required	0.5
`bsdf1`	BSDF 2	required	None
`weight1`	Weight 2	required	0.5

2.5. The `diffuse_btdf` Model

Parameter	Label	Presence	Default	Description
`transmittance`	Transmittance	required	0.5
`transmittance_multiplier`	Transmittance Multiplier	optional	1.0

2.6. The `disney_brdf` Model

Parameter	Label	Presence	Default
`base_color`	Base Color	required	0.9
`subsurface`	Subsurface	optional	0.0
`metallic`	Metallic	optional	0.0
`specular`	Specular	optional	0.0
`specular_tint`	Specular Tint	optional	0.0
`anisotropic`	Anisotropic	optional	0.0
`roughness`	Roughness	optional	0.1
`sheen`	Sheen	optional	0.0
`sheen_tint`	Sheen Tint	optional	0.0
`clearcoat`	Clearcoat	optional	0.0
`clearcoat_gloss`	Clearcoat Gloss	optional	1.0

2.7. The `glass_bsdf` Model

Parameter	Label	Presence	Default	Description
`surface_transmittance`	Surface Transmittance	required	0.99
`surface_transmittance_multiplier`	Surface Transmittance Multiplier	optional	1.0
`reflection_tint`	Reflection Tint	optional	1.0
`refraction_tint`	Refraction Tint	optional	1.0
`ior`	Index of Refraction	required	1.5
`roughness`	Roughness	optional	0.15
`anisotropy`	Anisotropy	optional	0.0
`volume_parameterization`	Volume Absorption Parameterization	required	`transmittance`	Possible values are: `absorption` (Absorption), `transmittance` (Transmittance).
`volume_transmittance`	Volume Transmittance	optional	1.0
`volume_transmittance_distance`	Volume Transmittance Distance	optional	0.0
`volume_absorption`	Volume Absorption	optional	0.0
`volume_density`	Volume Density	optional	0.0
`volume_scale`	Volume Scale	optional	1.0
`energy_compensation`	Energy Compensation	optional	0.0

2.8. The `glossy_brdf` Model

Parameter	Label	Presence	Default
`reflectance`	Reflectance	required	0.75
`reflectance_multiplier`	Reflectance Multiplier	optional	1.0
`roughness`	Roughness	optional	0.15
`anisotropy`	Anisotropy	optional	0.0
`ior`	Index of Refraction	required	1.5
`fresnel_weight`	Fresnel Weight	optional	1.0
`energy_compensation`	Energy Compensation	optional	0.0

2.9. The `hair_bsdf` Model

Parameter	Label	Presence	Default
`reflectance`	Reflectance	required	0.0
`melanin`	Melanin Concentration	optional	0.3
`melanin_redness`	Melanin Redness	optional	0.0
`eta`	Index of Refraction	optional	1.55
`beta_M`	Longitudinal Roughness	optional	0.3
`beta_N`	Azimuthal Roughness	optional	0.3
`alpha`	Cuticle Scale Angle	optional	2.0

2.10. The `kelemen_brdf` Model

Parameter	Label	Presence	Default
`matte_reflectance`	Matte Reflectance	required	0.5
`matte_reflectance_multiplier`	Matte Reflectance Multiplier	optional	1.0
`specular_reflectance`	Specular Reflectance	required	0.5
`specular_reflectance_multiplier`	Specular Reflectance Multiplier	optional	1.0
`roughness`	Roughness	required	0.5

2.11. The `lambertian_brdf` Model

Parameter	Label	Presence	Default	Description
`reflectance`	Reflectance	required	0.5
`reflectance_multiplier`	Reflectance Multiplier	optional	1.0

2.12. The `metal_brdf` Model

Parameter	Label	Presence	Default
`normal_reflectance`	Normal Reflectance	required	0.92
`edge_tint`	Edge Tint	required	0.98
`edge_tint_weight`	Edge Tint Weight	optional	1.0
`reflectance_multiplier`	Reflectance Multiplier	optional	1.0
`roughness`	Roughness	optional	0.15
`anisotropy`	Anisotropy	optional	0.0
`energy_compensation`	Energy Compensation	optional	0.0

2.13. The `microfacet_normal_mapping_blinn_brdf` Model

Parameter	Label	Presence	Default	Description
`exponent`	Exponent	required	0.5
`ior`	Index of Refraction	required	1.5

2.14. The `microfacet_normal_mapping_glossy_brdf` Model

Parameter	Label	Presence	Default
`reflectance`	Reflectance	required	0.75
`reflectance_multiplier`	Reflectance Multiplier	optional	1.0
`roughness`	Roughness	optional	0.15
`anisotropy`	Anisotropy	optional	0.0
`ior`	Index of Refraction	required	1.5
`fresnel_weight`	Fresnel Weight	optional	1.0
`energy_compensation`	Energy Compensation	optional	0.0

2.15. The `microfacet_normal_mapping_lambertian_brdf` Model

Parameter	Label	Presence	Default	Description
`reflectance`	Reflectance	required	0.5
`reflectance_multiplier`	Reflectance Multiplier	optional	1.0

2.16. The `microfacet_normal_mapping_metal_brdf` Model

Parameter	Label	Presence	Default
`normal_reflectance`	Normal Reflectance	required	0.92
`edge_tint`	Edge Tint	required	0.98
`edge_tint_weight`	Edge Tint Weight	optional	1.0
`reflectance_multiplier`	Reflectance Multiplier	optional	1.0
`roughness`	Roughness	optional	0.15
`anisotropy`	Anisotropy	optional	0.0
`energy_compensation`	Energy Compensation	optional	0.0

2.17. The `microfacet_normal_mapping_plastic_brdf` Model

Parameter	Label	Presence	Default
`diffuse_reflectance`	Diffuse Reflectance	required	0.5
`diffuse_reflectance_multiplier`	Diffuse Reflectance Multiplier	optional	1.0
`specular_reflectance`	Specular Reflectance	required	1.0
`specular_reflectance_multiplier`	Specular Reflectance Multiplier	optional	1.0
`roughness`	Roughness	optional	0.15
`ior`	Index of Refraction	required	1.5
`internal_scattering`	Internal Scattering	optional	1.0

2.18. The `microfacet_normal_mapping_sheen_brdf` Model

Parameter	Label	Presence	Default	Description
`reflectance`	Reflectance	required	0.5
`reflectance_multiplier`	Reflectance Multiplier	optional	1.0

2.19. The `orennayar_brdf` Model

Parameter	Label	Presence	Default
`reflectance`	Reflectance	required	0.5
`reflectance_multiplier`	Reflectance Multiplier	optional	1.0
`roughness`	Roughness	required	0.1

2.20. The `plastic_brdf` Model

Parameter	Label	Presence	Default
`diffuse_reflectance`	Diffuse Reflectance	required	0.5
`diffuse_reflectance_multiplier`	Diffuse Reflectance Multiplier	optional	1.0
`specular_reflectance`	Specular Reflectance	required	1.0
`specular_reflectance_multiplier`	Specular Reflectance Multiplier	optional	1.0
`roughness`	Roughness	optional	0.15
`ior`	Index of Refraction	required	1.5
`internal_scattering`	Internal Scattering	optional	1.0

2.21. The `sheen_brdf` Model

Parameter	Label	Presence	Default	Description
`reflectance`	Reflectance	required	0.5
`reflectance_multiplier`	Reflectance Multiplier	optional	1.0

2.22. The `specular_brdf` Model

Parameter	Label	Presence	Default	Description
`reflectance`	Reflectance	required	0.5
`reflectance_multiplier`	Reflectance Multiplier	optional	1.0

2.23. The `specular_btdf` Model

Parameter	Label	Presence	Default
`reflectance`	Reflectance	required	0.5
`reflectance_multiplier`	Reflectance Multiplier	optional	1.0
`transmittance`	Transmittance	required	0.5
`transmittance_multiplier`	Transmittance Multiplier	optional	1.0
`fresnel_multiplier`	Fresnel Multiplier	optional	1.0
`ior`	Index of Refraction	required	1.5
`volume_density`	Volume Density	optional	0.0
`volume_scale`	Volume Scale	optional	1.0

3. Built-in BSSRDF Models

3.1. The `better_dipole_bssrdf` Model

Parameter	Label	Presence	Default
`weight`	Weight	optional	1.0
`reflectance`	Diffuse Surface Reflectance	required	0.5
`reflectance_multiplier`	Diffuse Surface Reflectance Multiplier	optional	1.0
`mfp`	Mean Free Path	required	0.5
`mfp_multiplier`	Mean Free Path Multiplier	optional	1.0
`ior`	Index of Refraction	required	1.3
`fresnel_weight`	Fresnel Weight	optional	1.0

3.2. The `directional_dipole_bssrdf` Model

Parameter	Label	Presence	Default
`weight`	Weight	optional	1.0
`reflectance`	Diffuse Surface Reflectance	required	0.5
`reflectance_multiplier`	Diffuse Surface Reflectance Multiplier	optional	1.0
`mfp`	Mean Free Path	required	0.5
`mfp_multiplier`	Mean Free Path Multiplier	optional	1.0
`ior`	Index of Refraction	required	1.3
`fresnel_weight`	Fresnel Weight	optional	1.0

3.3. The `gaussian_bssrdf` Model

Parameter	Label	Presence	Default
`weight`	Weight	optional	1.0
`reflectance`	Reflectance	required	0.5
`reflectance_multiplier`	Reflectance Multiplier	optional	1.0
`mfp`	Mean Free Path	required	0.5
`mfp_multiplier`	Mean Free Path Multiplier	optional	1.0
`ior`	Index of Refraction	required	1.3
`fresnel_weight`	Fresnel Weight	optional	1.0

3.4. The `normalized_diffusion_bssrdf` Model

Parameter	Label	Presence	Default
`weight`	Weight	optional	1.0
`reflectance`	Diffuse Surface Reflectance	required	0.5
`reflectance_multiplier`	Diffuse Surface Reflectance Multiplier	optional	1.0
`mfp`	Mean Free Path	required	0.5
`mfp_multiplier`	Mean Free Path Multiplier	optional	1.0
`ior`	Index of Refraction	required	1.3
`fresnel_weight`	Fresnel Weight	optional	1.0

3.5. The `randomwalk_bssrdf` Model

Parameter	Label	Presence	Default	Description
`weight`	Weight	optional	1.0
`reflectance`	Diffuse Surface Reflectance	required	0.5
`reflectance_multiplier`	Diffuse Surface Reflectance Multiplier	optional	1.0
`mfp`	Mean Free Path	required	0.5
`mfp_multiplier`	Mean Free Path Multiplier	optional	1.0
`ior`	Index of Refraction	required	1.3
`fresnel_weight`	Fresnel Weight	optional	1.0
`volume_anisotropy`	Volume Anisotropy	optional	0.0
`surface_bsdf_model`	Surface BSDF Model	optional	`diffuse`	Possible values are: `diffuse` (Diffuse BTDF), `glass` (Glass BSDF).
`surface_roughness`	Surface Roughness	optional	1.0

3.6. The `standard_dipole_bssrdf` Model

Parameter	Label	Presence	Default
`weight`	Weight	optional	1.0
`reflectance`	Diffuse Surface Reflectance	required	0.5
`reflectance_multiplier`	Diffuse Surface Reflectance Multiplier	optional	1.0
`mfp`	Mean Free Path	required	0.5
`mfp_multiplier`	Mean Free Path Multiplier	optional	1.0
`ior`	Index of Refraction	required	1.3
`fresnel_weight`	Fresnel Weight	optional	1.0

4. Built-in Camera Models

4.1. The `fisheyelens_camera` Model

Parameter	Label	Presence	Default	Description
`shutter_open_begin_time`	Shutter Open Begin Time	optional	0.0
`shutter_open_end_time`	Shutter Open End Time	optional	0.0
`shutter_close_begin_time`	Shutter Close Begin Time	optional	1.0
`shutter_close_end_time`	Shutter Close End Time	optional	1.0
`shutter_curve_control_points`	Shutter Curve Control Points	optional	None
`film_dimensions`	Film Dimensions	required	None
`film_width`	Film Width	required	None
`film_height`	Film Height	required	None
`aspect_ratio`	Aspect Ratio	required	None
`focal_length`	Focal Length	required	None
`horizontal_fov`	Horizontal FOV	required	None
`near_z`	Near Z	optional	-0.001
`shift_x`	Shift X	optional	0.0
`shift_y`	Shift Y	optional	0.0
`projection_type`	Projection Type	required	`equisolid_angle`	Possible values are: `equidistant` (Equidistant), `equisolid_angle` (Equisolid Angle), `stereographic` (Stereographic), `thoby` (Thoby).

4.2. The `orthographic_camera` Model

Parameter	Label	Presence	Default
`shutter_open_begin_time`	Shutter Open Begin Time	optional	0.0
`shutter_open_end_time`	Shutter Open End Time	optional	0.0
`shutter_close_begin_time`	Shutter Close Begin Time	optional	1.0
`shutter_close_end_time`	Shutter Close End Time	optional	1.0
`shutter_curve_control_points`	Shutter Curve Control Points	optional	None
`film_dimensions`	Film Dimensions	required	None
`film_width`	Film Width	required	None
`film_height`	Film Height	required	None
`aspect_ratio`	Aspect Ratio	required	None
`near_z`	Near Z	optional	-0.001

4.3. The `pinhole_camera` Model

Parameter	Label	Presence	Default
`shutter_open_begin_time`	Shutter Open Begin Time	optional	0.0
`shutter_open_end_time`	Shutter Open End Time	optional	0.0
`shutter_close_begin_time`	Shutter Close Begin Time	optional	1.0
`shutter_close_end_time`	Shutter Close End Time	optional	1.0
`shutter_curve_control_points`	Shutter Curve Control Points	optional	None
`film_dimensions`	Film Dimensions	required	None
`film_width`	Film Width	required	None
`film_height`	Film Height	required	None
`aspect_ratio`	Aspect Ratio	required	None
`focal_length`	Focal Length	required	None
`horizontal_fov`	Horizontal FOV	required	None
`near_z`	Near Z	optional	-0.001
`shift_x`	Shift X	optional	0.0
`shift_y`	Shift Y	optional	0.0

4.4. The `spherical_camera` Model

Parameter	Label	Presence	Default
`shutter_open_begin_time`	Shutter Open Begin Time	optional	0.0
`shutter_open_end_time`	Shutter Open End Time	optional	0.0
`shutter_close_begin_time`	Shutter Close Begin Time	optional	1.0
`shutter_close_end_time`	Shutter Close End Time	optional	1.0
`shutter_curve_control_points`	Shutter Curve Control Points	optional	None

4.5. The `thinlens_camera` Model

Parameter	Label	Presence	Default
`shutter_open_begin_time`	Shutter Open Begin Time	optional	0.0
`shutter_open_end_time`	Shutter Open End Time	optional	0.0
`shutter_close_begin_time`	Shutter Close Begin Time	optional	1.0
`shutter_close_end_time`	Shutter Close End Time	optional	1.0
`shutter_curve_control_points`	Shutter Curve Control Points	optional	None
`film_dimensions`	Film Dimensions	required	None
`film_width`	Film Width	required	None
`film_height`	Film Height	required	None
`aspect_ratio`	Aspect Ratio	required	None
`focal_length`	Focal Length	required	None
`horizontal_fov`	Horizontal FOV	required	None
`f_stop`	F-number	required	8.0
`autofocus_enabled`	Enable autofocus	optional	`true`
`focal_distance`	Focal Distance	optional	1.0
`autofocus_target`	Autofocus Target	optional	`0.5 0.5`
`diaphragm_blades`	Diaphragm Blades	optional	0
`diaphragm_tilt_angle`	Diaphragm Tilt Angle	optional	0.0
`diaphragm_map`	Diaphragm Map	optional	None
`near_z`	Near Z	optional	-0.001
`shift_x`	Shift X	optional	0.0
`shift_y`	Shift Y	optional	0.0

5.1. The `color` Model

Parameter	Label	Presence	Default	Description
`color_space`	Color Space	required	`srgb`	Possible values are: `ciexyz` (CIE XYZ), `linear_rgb` (Linear RGB), `spectral` (Spectral), `srgb` (sRGB).
`wavelength_range`	Wavelength Range	optional	`400.0 700.0`
`color`	Color	required	`0.0 0.0 0.0`
`alpha`	Alpha	optional	1.0
`multiplier`	Multiplier	optional	1.0

6. Built-in EDF Models

6.1. The `cone_edf` Model

Parameter	Label	Presence	Default	Description
`radiance`	Radiance	required	1.0
`radiance_multiplier`	Radiance Multiplier	optional	1.0
`exposure`	Exposure	optional	0.0	Exposure
`angle`	Angle	required	90.0
`cast_indirect_light`	Cast Indirect Light	optional	`true`	If enabled, area lights using this material contribute to indirect lighting
`importance_multiplier`	Importance Multiplier	optional	1.0	Adjust the sampling effort for area lights using this material with respect to the other area lights
`light_near_start`	Light Near Start	optional	0.0

6.2. The `diffuse_edf` Model

Parameter	Label	Presence	Default	Description
`radiance`	Radiance	required	1.0
`radiance_multiplier`	Radiance Multiplier	optional	1.0
`exposure`	Exposure	optional	0.0	Exposure
`cast_indirect_light`	Cast Indirect Light	optional	`true`	If enabled, area lights using this material contribute to indirect lighting
`importance_multiplier`	Importance Multiplier	optional	1.0	Adjust the sampling effort for area lights using this material with respect to the other area lights
`light_near_start`	Light Near Start	optional	0.0

7.1. The `generic_environment` Model

Parameter	Label	Presence	Default	Description
`environment_edf`	Environment EDF	optional	None
`environment_shader`	Environment Shader	optional	None

8. Built-in Environment EDF Models

8.1. The `constant_environment_edf` Model

Parameter	Label	Presence	Default	Description
`radiance`	Radiance	required	1.0	Environment radiance
`cast_shadows`	Cast Shadows	optional	`true`	If enabled, the environment casts shadows

8.2. The `constant_hemisphere_environment_edf` Model

Parameter	Label	Presence	Default	Description
`upper_hemi_radiance`	Upper Hemisphere Radiance	required	0.7	Upper hemisphere radiance
`lower_hemi_radiance`	Lower Hemisphere Radiance	required	0.3	Lower hemisphere radiance
`cast_shadows`	Cast Shadows	optional	`true`	If enabled, the environment casts shadows

8.3. The `gradient_environment_edf` Model

Parameter	Label	Presence	Default	Description
`horizon_radiance`	Horizon Radiance	required	0.3	Horizon radiance
`zenith_radiance`	Zenith Radiance	required	0.7	Zenith radiance
`cast_shadows`	Cast Shadows	optional	`true`	If enabled, the environment casts shadows

8.4. The `hosek_environment_edf` Model

Parameter	Label	Presence	Default	Description
`sun_theta`	Sun Theta Angle	required	45.0	Sun polar (vertical) angle in degrees
`sun_phi`	Sun Phi Angle	required	0.0	Sun azimuthal (horizontal) angle in degrees
`turbidity`	Turbidity	required	1.0	Atmospheric haziness
`turbidity_multiplier`	Turbidity Multiplier	optional	2.0	Atmospheric haziness multiplier
`luminance_multiplier`	Luminance Multiplier	optional	1.0	Sky luminance multiplier
`luminance_gamma`	Luminance Gamma	optional	1.0	Sky luminance gamma
`saturation_multiplier`	Saturation Multiplier	optional	1.0	Sky color saturation multiplier
`horizon_shift`	Horizon Shift	optional	0.0	Shift the horizon vertically
`ground_albedo`	Ground Albedo	optional	0.3	Ground albedo (reflection coefficient of the ground)
`cast_shadows`	Cast Shadows	optional	`true`	If enabled, the environment casts shadows

8.5. The `latlong_map_environment_edf` Model

Parameter	Label	Presence	Default	Description
`radiance`	Radiance	required	1.0	Environment texture
`radiance_multiplier`	Radiance Multiplier	optional	1.0	Environment texture radiance multiplier
`exposure`	Exposure	optional	0.0	Environment exposure
`horizontal_shift`	Horizontal Shift	optional	0.0	Environment texture horizontal shift in degrees
`vertical_shift`	Vertical Shift	optional	0.0	Environment texture vertical shift in degrees
`cast_shadows`	Cast Shadows	optional	`true`	If enabled, the environment casts shadows

8.6. The `mirrorball_map_environment_edf` Model

Parameter	Label	Presence	Default	Description
`radiance`	Radiance	required	1.0	Environment texture
`radiance_multiplier`	Radiance Multiplier	optional	1.0	Environment texture radiance multiplier
`exposure`	Exposure	optional	0.0	Environment exposure
`cast_shadows`	Cast Shadows	optional	`true`	If enabled, the environment casts shadows

8.7. The `osl_environment_edf` Model

Parameter	Label	Presence	Default	Description
`osl_background`	OSL Background	optional	None
`importance_map_size`	Importance Map size	optional	1024	Importance map size: width = size, height = size/2
`cast_shadows`	Cast Shadows	optional	`true`	If enabled, the environment casts shadows

8.8. The `preetham_environment_edf` Model

Parameter	Label	Presence	Default	Description
`sun_theta`	Sun Theta Angle	required	45.0	Sun polar (vertical) angle in degrees
`sun_phi`	Sun Phi Angle	required	0.0	Sun azimuthal (horizontal) angle in degrees
`turbidity`	Turbidity	required	1.0	Atmospheric haziness
`turbidity_multiplier`	Turbidity Multiplier	optional	2.0	Atmospheric haziness multiplier
`luminance_multiplier`	Luminance Multiplier	optional	1.0	Sky luminance multiplier
`luminance_gamma`	Luminance Gamma	optional	1.0	Sky luminance gamma
`saturation_multiplier`	Saturation Multiplier	optional	1.0	Sky color saturation multiplier
`horizon_shift`	Horizon Shift	optional	0.0	Shift the horizon vertically
`cast_shadows`	Cast Shadows	optional	`true`	If enabled, the environment casts shadows

9. Built-in Environment Shader Models

9.1. The `background_environment_shader` Model

Parameter	Label	Presence	Default	Description
`color`	Color	required	0.5
`alpha`	Alpha	optional	1.0

9.2. The `edf_environment_shader` Model

Parameter	Label	Presence	Default	Description
`environment_edf`	Environment EDF	required	None
`alpha_value`	Alpha Value	optional	1.0

10.1. The `frame` Model

Parameter	Label	Presence	Default	Description
`camera`	Camera	optional	None
`resolution`	Resolution	required	None
`crop_window`	Crop Window	optional	None
`tile_size`	Tile Size	required	None
`filter`	Filter	optional	`blackman-harris`	Possible values are: `blackman-harris` (Blackman-Harris), `box` (Box), `gaussian` (Gaussian), `triangle` (Triangle).
`filter_size`	Filter Size	optional	1.5
`noise_seed`	Noise Seed	optional	0
`enable_dithering`	Dithering	optional	`true`
`denoiser`	Denoiser	required	`off`	Possible values are: `off` (Off), `on` (On), `write_outputs` (Write Outputs).
`skip_denoised`	Skip Denoised Pixels	optional	`true`
`random_pixel_order`	Random Pixel Order	optional	`true`
`prefilter_spikes`	Prefilter Spikes	optional	`true`
`spike_threshold`	Spike Threshold	optional	2.0
`patch_distance_threshold`	Patch Distance	optional	1.0
`denoise_scales`	Denoise Scales	optional	3
`mark_invalid_pixels`	Mark Invalid Pixels	optional	`false`

11. Built-in Light Models

11.1. The `directional_light` Model

Parameter	Label	Presence	Default	Description
`irradiance`	Irradiance	required	1.0	Light intensity
`irradiance_multiplier`	Irradiance Multiplier	optional	1.0	Light intensity multiplier
`exposure`	Exposure	optional	0.0	Light exposure
`cast_indirect_light`	Cast Indirect Light	optional	`true`	If enabled, this light contributes to indirect lighting
`importance_multiplier`	Importance Multiplier	optional	1.0	Adjust the sampling effort for this light with respect to the other lights
`cast_shadows`	Cast Shadows	optional	`true`	If enabled, this light casts shadows

11.2. The `max_omni_light` Model

Parameter	Label	Presence	Default	Description
`intensity`	Intensity	required	1.0	Light intensity
`intensity_multiplier`	Intensity Multiplier	optional	1.0	Light intensity multiplier
`decay_start`	Decay Start	optional	0.0	Distance at which light decay starts
`decay_exponent`	Decay Exponent	optional	2.0	Exponent of the light decay function
`cast_indirect_light`	Cast Indirect Light	optional	`true`	If enabled, this light contributes to indirect lighting
`importance_multiplier`	Importance Multiplier	optional	1.0	Adjust the sampling effort for this light with respect to the other lights
`cast_shadows`	Cast Shadows	optional	`true`	If enabled, this light casts shadows

11.3. The `max_spot_light` Model

Parameter	Label	Presence	Default	Description
`intensity`	Intensity	required	1.0	Light intensity
`intensity_multiplier`	Intensity Multiplier	optional	1.0	Light intensity multiplier
`inner_angle`	Inner Angle	required	20.0	Cone distribution inner angle
`outer_angle`	Outer Angle	required	30.0	Cone distribution outer angle
`tilt_angle`	Tilt Angle	optional	0.0	Rotate the spot light around its axis; only useful when using the light intensity is textured (gobo)
`decay_start`	Decay Start	optional	0.0	Distance at which light decay starts
`decay_exponent`	Decay Exponent	optional	2.0	Exponent of the light decay function
`cast_indirect_light`	Cast Indirect Light	optional	`true`	If enabled, this light contributes to indirect lighting
`importance_multiplier`	Importance Multiplier	optional	1.0	Adjust the sampling effort for this light with respect to the other lights
`cast_shadows`	Cast Shadows	optional	`true`	If enabled, this light casts shadows

11.4. The `point_light` Model

Parameter	Label	Presence	Default	Description
`intensity`	Intensity	required	1.0	Light intensity
`intensity_multiplier`	Intensity Multiplier	optional	1.0	Light intensity multiplier
`exposure`	Exposure	optional	0.0	Light exposure
`cast_indirect_light`	Cast Indirect Light	optional	`true`	If enabled, this light contributes to indirect lighting
`importance_multiplier`	Importance Multiplier	optional	1.0	Adjust the sampling effort for this light with respect to the other lights
`cast_shadows`	Cast Shadows	optional	`true`	If enabled, this light casts shadows

11.5. The `spot_light` Model

Parameter	Label	Presence	Default	Description
`intensity`	Intensity	required	1.0	Light intensity
`intensity_multiplier`	Intensity Multiplier	optional	1.0	Light intensity multiplier
`exposure`	Exposure	optional	0.0	Light exposure
`inner_angle`	Inner Angle	required	20.0	Cone distribution inner angle
`outer_angle`	Outer Angle	required	30.0	Cone distribution outer angle
`tilt_angle`	Tilt Angle	optional	0.0	Rotate the spot light around the emission axis; only useful when the light intensity is textured (gobo)
`cast_indirect_light`	Cast Indirect Light	optional	`true`	If enabled, this light contributes to indirect lighting
`importance_multiplier`	Importance Multiplier	optional	1.0	Adjust the sampling effort for this light with respect to the other lights
`cast_shadows`	Cast Shadows	optional	`true`	If enabled, this light casts shadows

11.6. The `sun_light` Model

Parameter	Label	Presence	Default	Description
`environment_edf`	Bind To	optional	None	If an environment EDF is bound, use the sun angles and turbidity values from the environment
`turbidity`	Turbidity	required	2.0	Atmospheric haziness
`radiance_multiplier`	Radiance Multiplier	optional	1.0	Light intensity multiplier
`size_multiplier`	Size Multiplier	optional	1.0	The size multiplier allows to make the sun bigger or smaller, hence making it cast softer or harder shadows
`distance`	Distance	optional	149.6	Distance between Sun and scene (millions of km)
`cast_indirect_light`	Cast Indirect Light	optional	`true`	If enabled, this light contributes to indirect lighting
`importance_multiplier`	Importance Multiplier	optional	1.0	Adjust the sampling effort for this light with respect to the other lights
`cast_shadows`	Cast Shadows	optional	`true`	If enabled, this light casts shadows

12. Built-in Material Models

12.1. The `generic_material` Model

Parameter	Label	Presence	Default	Description
`surface_shader`	Surface Shader	optional	None
`bsdf`	BSDF	optional	None
`bssrdf`	BSSRDF	optional	None
`edf`	EDF	optional	None
`volume`	Volume	optional	None
`alpha_map`	Alpha Map	optional	None
`displacement_map`	Displacement Map	optional	None
`displacement_method`	Displacement Method	required	`bump`	Possible values are: `bump` (Bump Mapping), `normal` (Normal Mapping).
`bump_amplitude`	Bump Amplitude	optional	1.0
`bump_offset`	Bump Offset	optional	0.5
`normal_map_up`	Normal Map Up Vector	optional	`z`	Possible values are: `z` (Blue Channel (Z)), `y` (Green Channel (Y)).
`default_tangent_mode`	Default Tangent Mode	optional	`uv`	Possible values are: `local_x` (Local X direction), `local_y` (Local Y direction), `local_z` (Local Z direction), `radial` (Radial), `uv` (UV Coordinates).

12.2. The `osl_material` Model

Parameter	Label	Presence	Default	Description
`surface_shader`	Surface Shader	optional	None
`osl_surface`	OSL Surface	optional	None
`alpha_map`	Alpha Map	optional	None
`default_tangent_mode`	Default Tangent Mode	optional	`uv`	Possible values are: `local_x` (Local X direction), `local_y` (Local Y direction), `local_z` (Local Z direction), `radial` (Radial), `uv` (UV Coordinates).

13. Built-in Object Models

13.1. The `curve_object` Model

13.2. The `disk_object` Model

Parameter	Label	Presence	Default	Description
`radius`	Radius	optional	1.0

13.3. The `mesh_object` Model

Parameter	Label	Presence	Default	Description
`alpha_map`	Alpha Map	optional	None

13.4. The `rectangle_object` Model

Parameter	Label	Presence	Default	Description
`width`	Width	optional	1.0
`height`	Height	optional	1.0

13.5. The `sphere_object` Model

Parameter	Label	Presence	Default	Description
`radius`	Radius	optional	1.0

14. Built-in Post-Processing Stage Models

14.1. The `bloom_post_processing_stage` Model

Parameter	Label	Presence	Default	Description
`order`	Order	required	0	Determines the order in which this stage is applied
`iterations`	Radius	optional	4
`intensity`	Intensity	optional	0.1
`threshold`	Threshold	optional	1.0
`soft_knee`	Soft Knee	optional	0.5
`debug_blur`	Debug Blur	optional	`false`

14.2. The `chromatic_aberration_post_processing_stage` Model

Parameter	Label	Presence	Default	Description
`order`	Order	required	0	Determines the order in which this stage is applied
`strength`	Strength	optional	0.4
`fringe_smoothness`	Fringe Smoothness	optional	6

14.3. The `color_map_post_processing_stage` Model

Parameter	Label	Presence	Default	Description
`order`	Order	required	0	Determines the order in which this stage is applied
`color_map`	Color Map	required	`inferno`	Applied color map. Possible values are: `custom` (Custom), `inferno` (Inferno), `jet` (Jet), `magma` (Magma), `plasma` (Plasma), `turbo` (Turbo), `viridis` (Viridis).
`color_map_file_path`	Color Map File Path	optional	None	Path to a custom color map image
`auto_range`	Auto Range	optional	`true`	Maps the full range of luminance values to the color map
`range_min`	Range Min	optional	0.0	Luminance value mapped to the first row in the colormap
`range_max`	Range Max	optional	1.0	Luminance value mapped to the last row in the colormap
`add_legend_bar`	Add Legend Bar	optional	`true`	Include a legend bar next to the color map
`legend_bar_ticks`	Legend Bar Ticks	optional	8	Set the number of divisions in the legend bar
`render_isolines`	Render Isolines	optional	`false`	Draw lines of equal relative luminance
`line_thickness`	Line Thickness	optional	1.0	Set the thickness of luminance isolines

14.4. The `render_stamp_post_processing_stage` Model

Parameter	Label	Presence	Default	Description
`order`	Order	required	0	Determines the order in which this stage is applied
`format_string`	Format String	optional	`appleseed {lib-version}	Time: {render-time}`
Available predefined variables:
{lib-name}, {lib-version},
{lib-cpu-features}, {lib-config},
{lib-build-date}, {lib-build-time},
{render-time}, {peak-memory}
`scale_factor`	Scale Factor	optional	1.0	Controls the size of the render stamp

14.5. The `tone_map_post_processing_stage` Model

Parameter	Label	Presence	Default	Description
`order`	Order	required	0	Determines the order in which this stage is applied
`tone_map_operator`	Operator	required	`linear`	Possible values are: `aces_narkowicz` (ACES (Narkowicz)), `aces_unreal` (ACES (Unreal)), `filmic_hejl` (Filmic (Hejl)), `filmic_piecewise` (Filmic (Piecewise)), `filmic_uncharted` (Filmic (Uncharted)), `linear` (Linear), `reinhard` (Reinhard), `reinhard_extended` (Reinhard (Extended)).
`clamp_colors`	Clamp Colors	optional	`true`
`aces_narkowicz_exposure_bias`	Exposure bias	optional	0.8
`filmic_uncharted_A`	Shoulder Strength (A)	optional	0.22
`filmic_uncharted_B`	Linear Strength (B)	optional	0.30
`filmic_uncharted_C`	Linear Angle (C)	optional	0.10
`filmic_uncharted_D`	Toe Strength (D)	optional	0.20
`filmic_uncharted_E`	Toe Numerator (E)	optional	0.01
`filmic_uncharted_F`	Toe Denominator (F)	optional	0.30
`filmic_uncharted_W`	Linear white point	optional	11.2
`filmic_uncharted_exposure_bias`	Exposure bias	optional	2.0
`filmic_piecewise_toe_strength`	Toe Strength	optional	0.0
`filmic_piecewise_toe_length`	Toe Length	optional	0.5
`filmic_piecewise_shoulder_strength`	Shoulder Strength	optional	0.0
`filmic_piecewise_shoulder_length`	Shoulder Length (F-stops)	optional	0.5
`filmic_piecewise_shoulder_angle`	Shoulder Angle	optional	0.0
`reinhard_use_luminance`	Use Luminance	optional	`true`
`reinhard_extended_max_white`	Max White	optional	1.0
`reinhard_extended_use_luminance`	Use Luminance	optional	`true`

14.6. The `vignette_post_processing_stage` Model

Parameter	Label	Presence	Default	Description
`order`	Order	required	0	Determines the order in which this stage is applied
`intensity`	Intensity	optional	0.5	Strength of the vignetting effect
(higher values lead to stronger darkening of the image edges)
`anisotropy`	Anisotropy	optional	0.0	Vignette's degree of deviation from a circle
(0.0 = perfectly rounded, 1.0 = mimics the image aspect ratio)

15. Built-in Surface Shader Models

15.1. The `ao_surface_shader` Model

Parameter	Label	Presence	Default	Description
`sampling_method`	Sampling Method	required	`uniform`	Possible values are: `cosine` (Cosine-Weighted Sampling), `uniform` (Uniform Sampling).
`samples`	Samples	required	16
`max_distance`	Maximum Occlusion Distance	required	1.0

15.2. The `constant_surface_shader` Model

Parameter	Label	Presence	Default	Description
`color`	Color	required	0.5
`alpha_source`	Alpha Source	optional	`color`	Possible values are: `color` (Alpha channel of the color), `material` (Alpha map of the object and/or material).
`color_multiplier`	Color Multiplier	optional	1.0
`alpha_multiplier`	Alpha Multiplier	optional	1.0

15.3. The `diagnostic_surface_shader` Model

Parameter	Label	Presence	Default	Description
`mode`	Mode	required	`coverage`	Possible values are: `albedo` (Albedo), `ambient_occlusion` (Ambient Occlusion), `assemblies` (Assemblies), `assembly_instances` (Assembly Instances), `barycentric` (Barycentric Coordinates), `bitangent` (Bitangents), `coverage` (Coverage), `depth` (Depth), `facing_ratio` (Facing Ratio), `geometric_normal` (Geometric Normals), `materials` (Materials), `object_instances` (Object Instances), `objects` (Objects), `original_shading_normal` (Original Shading Normals), `primitives` (Primitives), `ray_spread` (Ray Spread), `screen_space_velocity` (Screen-Space Velocity), `screen_space_wireframe` (Screen-Space Wireframe), `shading_normal` (Shading Normals), `sides` (Sides), `tangent` (Tangents), `uv` (UV Coordinates), `world_space_position` (World-Space Position), `world_space_velocity` (World-Space Velocity), `world_space_wireframe` (World-Space Wireframe).

15.4. The `physical_surface_shader` Model

Parameter	Label	Presence	Default	Description
`lighting_samples`	Lighting Samples	optional	1

16. Built-in Texture Models

16.1. The `disk_texture_2d` Model

Parameter	Label	Presence	Default	Description
`filename`	File Path	required	None
`color_space`	Color Space	required	`srgb`	Possible values are: `ciexyz` (CIE XYZ), `linear_rgb` (Linear RGB), `srgb` (sRGB).

16.2. The `memory_texture_2d` Model

Parameter	Label	Presence	Default	Description
`color_space`	Color Space	required	`srgb`	Possible values are: `ciexyz` (CIE XYZ), `linear_rgb` (Linear RGB), `srgb` (sRGB).

17. Built-in Volume Models

17.1. The `generic_volume` Model

Parameter	Label	Presence	Default	Description
`absorption`	Absorption Coefficient	required	0.5
`absorption_multiplier`	Absorption Coefficient Multiplier	optional	1.0
`scattering`	Scattering Coefficient	required	0.5
`scattering_multiplier`	Scattering Coefficient Multiplier	optional	1.0
`phase_function_model`	Phase Function Model	required	`isotropic`	Possible values are: `henyey` (Henyey-Greenstein), `isotropic` (Isotropic).
`average_cosine`	Average Cosine (g)	optional	0.0

Built in Entities - appleseedhq/appleseed GitHub Wiki

1. Built-in AOV Models

1.1. The albedo_aov Model

1.2. The cryptomatte_material_aov Model

1.3. The cryptomatte_object_aov Model

1.4. The depth_aov Model

1.5. The diffuse_aov Model

1.6. The direct_diffuse_aov Model

1.7. The direct_glossy_aov Model

1.8. The emission_aov Model

1.9. The glossy_aov Model

1.10. The indirect_diffuse_aov Model

1.11. The indirect_glossy_aov Model

1.12. The invalid_samples_aov Model

1.13. The normal_aov Model

1.14. The npr_contour_aov Model

1.15. The npr_shading_aov Model

1.16. The pixel_error_aov Model

1.17. The pixel_sample_count_aov Model

1.18. The pixel_time_aov Model

1.19. The pixel_variation_aov Model

1.20. The position_aov Model

1.21. The screen_space_velocity_aov Model

1.22. The uv_aov Model

2. Built-in BSDF Models

2.1. The ashikhmin_brdf Model

2.2. The blinn_brdf Model

2.3. The bsdf_blend Model

2.4. The bsdf_mix Model

2.5. The diffuse_btdf Model

2.6. The disney_brdf Model

2.7. The glass_bsdf Model

2.8. The glossy_brdf Model

2.9. The hair_bsdf Model

2.10. The kelemen_brdf Model

2.11. The lambertian_brdf Model

2.12. The metal_brdf Model

2.13. The microfacet_normal_mapping_blinn_brdf Model

2.14. The microfacet_normal_mapping_glossy_brdf Model

2.15. The microfacet_normal_mapping_lambertian_brdf Model

2.16. The microfacet_normal_mapping_metal_brdf Model

2.17. The microfacet_normal_mapping_plastic_brdf Model

2.18. The microfacet_normal_mapping_sheen_brdf Model

2.19. The orennayar_brdf Model

2.20. The plastic_brdf Model

2.21. The sheen_brdf Model

2.22. The specular_brdf Model

2.23. The specular_btdf Model