MaterialPhysicalReflection

MaterialPhysicalReflection#

(Reflection)

Category: /Material/Physical
Default object name: reflection
Inherits from: ProjectItem > Material > MaterialPhysical

Description#

A specular physical material

Public Attributes#

Type	Name	Visual Hint	Description
`double[3]`	`color`	`VISUAL_HINT_COLOR`	Reflection color of the specular lobe.
`double`	`gain`	`VISUAL_HINT_PERCENTAGE`	Reflection gain of the specular lobe.
`double[3]`	`exit_color`	`VISUAL_HINT_COLOR`	Set the reflection color when there is no more bounce along the path.
`double`	`roughness`	`VISUAL_HINT_PERCENTAGE`	Roughness of the specular lobe.
`long`	`brdf`	`VISUAL_HINT_DEFAULT`	BRDF used for the specular lobe.
`double`	`anisotropy`	`VISUAL_HINT_PERCENTAGE`	Anisotropy of the specular lobe.
`long`	`anisotropy_mode`	`VISUAL_HINT_DEFAULT`	Controls how the anisotropy behaves. Stretch increases the roughness along Y axis, whereas Squash reduces the roughness along Y axis.
`long`	`anisotropy_space`	`VISUAL_HINT_DEFAULT`	Space in which the specular lobe anisotropy direction is expressed. Tangent UV space uses a frame defined by the UV mapping of the textures connected to the specular attributes. Tangent parametric uses, as the name suggests, the parametric frame. Finally, Object space uses the current object frame.
`double[3]`	`anisotropy_direction`	`VISUAL_HINT_DEFAULT`	Initial direction of specular lobe anisotropy (before a potential rotation) expressed in the space selected above.
`double`	`anisotropy_rotation`	`VISUAL_HINT_PERCENTAGE`	Rotates the anisotropy direction of the specular lobe around the normal (100% equates to 180 degrees).
`bool`	`use_fresnel`	`VISUAL_HINT_DEFAULT`	Enable or disable Fresnel
`long`	`fresnel_preset`	`VISUAL_HINT_DEFAULT`	Set of measured Fresnel presets for well-known materials.
`double[3]`	`fresnel_incident_tint`	`VISUAL_HINT_COLOR`	Reflectance color at normal incidence (aka F0).
`double[3]`	`fresnel_edge_tint`	`VISUAL_HINT_COLOR`	Color bias as the viewing direction becomes parallel to the surface.

Inherited Public Attributes#

Type	Name	Visual Hint	Description
`bool`	`export_aovs`	`VISUAL_HINT_DEFAULT`	Compute and write Aovs defined in the shading graph
`reference` (`AovStore`)	`arbitrary_output_variables`	`VISUAL_HINT_DEFAULT`	Set the list of extra channels to write to the image.
`string`	`light_path_expression_label`	`VISUAL_HINT_DEFAULT`	Set the material label in light path expressions.
`long`	`material_sample_count`	`VISUAL_HINT_SAMPLE_PER_PIXEL`	Material sample count per pixel.
`double`	`glossy_reflection_sampling_multiplier`	`VISUAL_HINT_SCALE`	Material glossy reflection sample count multiplier.
`double`	`russian_roulette`	`VISUAL_HINT_PERCENTAGE`	Amount of Russian roulette used on the material samples.
`double`	`roughness_noise_optimization`	`VISUAL_HINT_PERCENTAGE`	Noise reduction strategy along rough light path.
`double`	`multiple_scattering_strength`	`VISUAL_HINT_PERCENTAGE`	Strength of compensation for energy lost by multiple scattering.
`long`	`specular_reflection_depth`	`VISUAL_HINT_DEFAULT`	Maximum specular reflection depth.
`long`	`glossy_reflection_depth`	`VISUAL_HINT_DEFAULT`	Maximum glossy reflection depth.
`double[3]`	`opacity`	`VISUAL_HINT_COLOR`	Opacity of the material.
`long`	`normal_mode`	`VISUAL_HINT_DEFAULT`	Define which geometric normal to use for the shading.
`double`	`normal_input`	`VISUAL_HINT_PERCENTAGE`	Override the shading normal by the one given as input. The value controls the blending with the original normal.
`long`	`sidedness`	`VISUAL_HINT_DEFAULT`	Sidedness of this surface used for this material. 'Single' keeps the original normals no matter what. 'Double' may flip the normal to be oriented toward the incomming direction. 'Invert' flips the original normal no matter what.
`long`	`shadow_casting_mode`	`VISUAL_HINT_DEFAULT`	Defines the properties of the material when casting shadows: fully opaque (regardless of the actual value of the opacity of the material), artistic (user-defined opacity and coloring), pseudo-caustics (cheaply emulating actual refractive caustics) or physical (intrinsic transparency of the material), where the last three are modulated by the opacity of the material.
`double`	`shadow_opacity`	`VISUAL_HINT_PERCENTAGE`	Defines how dark the shadows cast by this material are.
`double`	`shadow_coloring`	`VISUAL_HINT_PERCENTAGE`	Defines how much refraction and absorption colors affect shadowing.
`long`	`reflective_caustics`	`VISUAL_HINT_DEFAULT`	Reflective caustics computation mode.

CID#

class "MaterialPhysicalReflection" "MaterialPhysical" {
    #version 0.93
    icon "material_reflection.iconrc"
    doc "A specular physical material"
    attribute_group "specular" {
        color "color" {
            doc "Reflection color of the specular lobe."
            texturable yes
            animatable yes
            value 0.78 0.78 0.78
        }
        percentage "gain" {
            doc "Reflection gain of the specular lobe."
            texturable yes
            animatable yes
            slider yes
            numeric_range yes 0.0 10
            ui_range yes 0.0 1
            value 1
        }
        color "exit_color" {
            doc "Set the reflection color when there is no more bounce along the path."
            texturable yes
            animatable yes
            value 0.0 0.0 0.0
        }
        percentage "roughness" {
            doc "Roughness of the specular lobe."
            texturable yes
            animatable yes
            slider yes
            numeric_range yes 0.0 1
            ui_range yes 0.0 1
            value 0.0
        }
        long "brdf" {
            doc "BRDF used for the specular lobe."
            preset "GGX" "0"
            preset "Ward" "1"
            preset "Beckmann" "2"
            value 0
        }
    }
    attribute_group "specular>anisotropy" {
        collapsed yes
        percentage "anisotropy" {
            doc "Anisotropy of the specular lobe."
            texturable yes
            animatable yes
            slider yes
            numeric_range yes 0.0 1
            ui_range yes 0.0 1
            value 0.0
        }
        long "anisotropy_mode" {
            doc "Controls how the anisotropy behaves. Stretch increases the roughness along Y axis, whereas Squash reduces the roughness along Y axis."
            preset "Stretch" "0"
            preset "Squash" "1"
            value 0
        }
        long "anisotropy_space" {
            doc "Space in which the specular lobe anisotropy direction is expressed. Tangent UV space uses a frame defined by the UV mapping of the textures connected to the specular attributes. Tangent parametric uses, as the name suggests, the parametric frame. Finally, Object space uses the current object frame."
            read_only yes
            preset "Tangent UV" "0"
            preset "Tangent parametric" "1"
            preset "Object" "2"
            value 0
        }
        double[3] "anisotropy_direction" {
            doc "Initial direction of specular lobe anisotropy (before a potential rotation) expressed in the space selected above."
            texturable yes
            animatable yes
            slider yes
            numeric_range yes -1 1
            ui_range yes -1 1
            read_only yes
            value 1 0.0 0.0
        }
        percentage "anisotropy_rotation" {
            doc "Rotates the anisotropy direction of the specular lobe around the normal (100% equates to 180 degrees)."
            texturable yes
            animatable yes
            slider yes
            ui_range yes 0.0 1
            read_only yes
            value 0.0
        }
    }
    attribute_group "specular>fresnel" {
        collapsed yes
        bool "use_fresnel" {
            doc "Enable or disable Fresnel"
            value no
        }
        long "fresnel_preset" {
            doc "Set of measured Fresnel presets for well-known materials."
            read_only yes
            preset "Custom" "-1"
            preset "Polyurethane" "0"
            preset "Water" "1"
            preset "Aluminium" "2"
            preset "Chromium" "3"
            preset "Copper" "4"
            preset "Gold" "5"
            preset "Silver" "6"
            preset "Titanium" "7"
            value -1
        }
        color "fresnel_incident_tint" {
            doc "Reflectance color at normal incidence (aka F0)."
            texturable yes
            animatable yes
            read_only yes
            value 0.04 0.04 0.04
        }
        color "fresnel_edge_tint" {
            doc "Color bias as the viewing direction becomes parallel to the surface."
            texturable yes
            animatable yes
            read_only yes
            value 0.0 0.0 0.0
        }
    }
    attribute_group "transparent_shadows" {
        collapsed yes
    }
    set "diffuse_sampling_multiplier" {
        null_label "Use Renderer Settings"
        null_value "-1.0"
        private no
        hidden yes
        saveable yes
        texturable no
        animatable no
        slider no
        numeric_range yes 0.0 1000
        ui_range yes 0.0 10
        dg_active yes
        dg_cyclic no
        dirtiness_pass_through no
        read_only no
        shading_variable yes
        experimental no
        advanced no
        overriden no
        promote_attribute no
        allow_expression yes
        localizable yes
        value -1
    }
    set "glossy_transmission_sampling_multiplier" {
        null_label "Use Renderer Settings"
        null_value "-1.0"
        private no
        hidden yes
        saveable yes
        texturable no
        animatable no
        slider no
        numeric_range yes 0.0 1000
        ui_range yes 0.0 10
        dg_active yes
        dg_cyclic no
        dirtiness_pass_through no
        read_only no
        shading_variable yes
        experimental no
        advanced no
        overriden no
        promote_attribute no
        allow_expression yes
        localizable yes
        value -1
    }
    set "subsurface_sampling_multiplier" {
        null_label "Use Renderer Settings"
        null_value "-1.0"
        private no
        hidden yes
        saveable yes
        texturable no
        animatable no
        slider no
        numeric_range yes 0.0 1000
        ui_range yes 0.0 10
        dg_active yes
        dg_cyclic no
        dirtiness_pass_through no
        read_only no
        shading_variable yes
        experimental no
        advanced no
        overriden no
        promote_attribute no
        allow_expression yes
        localizable yes
        value -1
    }
    set "volume_sampling_multiplier" {
        null_label "Use Renderer Settings"
        null_value "-1.0"
        private no
        hidden yes
        saveable yes
        texturable no
        animatable no
        slider no
        numeric_range yes 0.0 1000
        ui_range yes 0.0 10
        dg_active yes
        dg_cyclic no
        dirtiness_pass_through no
        read_only no
        shading_variable yes
        experimental no
        advanced no
        overriden no
        promote_attribute no
        allow_expression yes
        localizable yes
        value -1
    }
    set "diffuse_depth" {
        null_label "Use Renderer Settings"
        null_value "-1"
        private no
        hidden yes
        saveable yes
        texturable no
        animatable no
        slider no
        numeric_range yes 0.0 65536
        ui_range yes 0.0 16
        dg_active yes
        dg_cyclic no
        dirtiness_pass_through no
        read_only no
        shading_variable no
        experimental no
        advanced no
        overriden no
        promote_attribute no
        allow_expression yes
        localizable yes
        value -1
    }
    set "specular_transmission_depth" {
        null_label "Use Renderer Settings"
        null_value "-1"
        private no
        hidden yes
        saveable yes
        texturable no
        animatable no
        slider no
        numeric_range yes 0.0 65536
        ui_range yes 0.0 16
        dg_active yes
        dg_cyclic no
        dirtiness_pass_through no
        read_only no
        shading_variable no
        experimental no
        advanced no
        overriden no
        promote_attribute no
        allow_expression yes
        localizable yes
        value -1
    }
    set "glossy_transmission_depth" {
        null_label "Use Renderer Settings"
        null_value "-1"
        private no
        hidden yes
        saveable yes
        texturable no
        animatable no
        slider no
        numeric_range yes 0.0 65536
        ui_range yes 0.0 16
        dg_active yes
        dg_cyclic no
        dirtiness_pass_through no
        read_only no
        shading_variable no
        experimental no
        advanced no
        overriden no
        promote_attribute no
        allow_expression yes
        localizable yes
        value -1
    }
    set "volume_depth" {
        null_label "Use Renderer Settings"
        null_value "-1"
        private no
        hidden yes
        saveable yes
        texturable no
        animatable no
        slider no
        numeric_range yes 0.0 65536
        ui_range yes 0.0 16
        dg_active yes
        dg_cyclic no
        dirtiness_pass_through no
        read_only no
        shading_variable no
        experimental no
        advanced no
        overriden no
        promote_attribute no
        allow_expression yes
        localizable yes
        value -1
    }
    set "refractive_caustics" {
        private no
        hidden yes
        saveable yes
        texturable no
        animatable no
        slider no
        numeric_range no 0.0 1
        ui_range no 0.0 1
        dg_active yes
        dg_cyclic no
        dirtiness_pass_through no
        read_only no
        shading_variable no
        experimental no
        advanced no
        overriden no
        promote_attribute no
        allow_expression yes
        localizable yes
        preset "Off" "0"
        preset "Glossy only" "1"
        preset "Specular only" "2"
        preset "Full" "3"
        value 0
    }
}