Class VolumetricClouds

A volume component that holds settings for the ambient occlusion.

Inheritance
object
Object
ScriptableObject
VolumeComponent
VolumetricClouds
Implements
Inherited Members
VolumeComponent.active
VolumeComponent.displayName
VolumeComponent.parameters
VolumeComponent.GetHashCode()
VolumeComponent.AnyPropertiesIsOverridden()
VolumeComponent.Release()
VolumeComponent.GetSourceTerm()
ScriptableObject.SetDirty()
ScriptableObject.CreateInstance<T>()
Object.Instantiate<T>(T)
Object.Instantiate<T>(T, Vector3, Quaternion)
Object.Instantiate<T>(T, Vector3, Quaternion, Transform)
Object.Instantiate<T>(T, Transform)
Object.DestroyObject(Object)
Object.FindObjectsOfType<T>()
Object.FindObjectsByType<T>(FindObjectsSortMode)
Object.FindObjectsByType<T>(FindObjectsInactive, FindObjectsSortMode)
Object.FindObjectOfType<T>()
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Namespace: UnityEngine.Rendering.HighDefinition
Assembly: Unity.RenderPipelines.HighDefinition.Runtime.dll
Syntax
[Serializable]
[VolumeComponentMenu("Sky/Volumetric Clouds")]
[SupportedOnRenderPipeline(typeof(HDRenderPipelineAsset))]
public sealed class VolumetricClouds : VolumeComponent, IApplyRevertPropertyContextMenuItemProvider, IVersionable<VolumetricClouds.Version>, ISerializationCallbackReceiver

Fields

CloudShadowResolutionCount

Declaration
public const int CloudShadowResolutionCount = 5
Field Value
Type Description
int

altitudeDistortion

Controls the intensity of the wind-based altitude distortion of the clouds.

Declaration
[Tooltip("Controls the intensity of the wind-based altitude distortion of the clouds.")]
public ClampedFloatParameter altitudeDistortion
Field Value
Type Description
ClampedFloatParameter

altitudeRange

Controls the size of the volumetric clouds volume in meters.

Declaration
[Tooltip("Controls the size of the volumetric clouds volume in meters.")]
public MinFloatParameter altitudeRange
Field Value
Type Description
MinFloatParameter

altoStratusMap

Specifies the higher cloud layer distribution in the advanced mode.

Declaration
[Tooltip("Specifies the higher cloud layer distribution in the advanced mode.")]
public TextureParameter altoStratusMap
Field Value
Type Description
TextureParameter

altoStratusMapMultiplier

Overrides the coverage of the higher cloud layer specified in the alto stratus map in the advanced mode.

Declaration
[Tooltip("Overrides the coverage of the higher cloud layer specified in the alto stratus map in the advanced mode.")]
public ClampedFloatParameter altoStratusMapMultiplier
Field Value
Type Description
ClampedFloatParameter

ambientLightProbeDimmer

Controls the influence of the light probes on the cloud volume. A lower value will suppress the ambient light and produce darker clouds overall.

Declaration
[Tooltip("Controls the influence of the light probes on the cloud volume. A lower value will suppress the ambient light and produce darker clouds overall.")]
public ClampedFloatParameter ambientLightProbeDimmer
Field Value
Type Description
ClampedFloatParameter

ambientOcclusionCurve

Controls the ambient occlusion (Y axis) of the volumetric clouds as a function of the height (X Axis) inside the cloud volume.

Declaration
[Tooltip("Controls the ambient occlusion (Y axis) of the volumetric clouds as a function of the height (X Axis) inside the cloud volume.")]
public AnimationCurveParameter ambientOcclusionCurve
Field Value
Type Description
AnimationCurveParameter

bottomAltitude

Controls the altitude of the bottom of the volumetric clouds volume in meters.

Declaration
[Tooltip("Controls the altitude of the bottom of the volumetric clouds volume in meters.")]
public MinFloatParameter bottomAltitude
Field Value
Type Description
MinFloatParameter

cloudControl

Specifies the cloud control Mode: Simple, Advanced or Manual.

Declaration
[Tooltip("Specifies the cloud control Mode: Simple, Advanced or Manual.")]
public VolumetricClouds.CloudControlParameter cloudControl
Field Value
Type Description
VolumetricClouds.CloudControlParameter

cloudLut

Specifies the lookup table for the clouds - Profile Coverage (R), Erosion (G), Ambient Occlusion (B).

Declaration
[Tooltip("Specifies the lookup table for the clouds - Profile Coverage (R), Erosion (G), Ambient Occlusion (B).")]
public TextureParameter cloudLut
Field Value
Type Description
TextureParameter

cloudMap

Specifies the cloud map - Coverage (R), Rain (G), Type (B).

Declaration
[Tooltip("Specifies the cloud map - Coverage (R), Rain (G), Type (B).")]
public TextureParameter cloudMap
Field Value
Type Description
TextureParameter

cloudMapResolution

Specifies the internal texture resolution used for the cloud map in the advanced mode. A lower value will lead to higher performance, but less precise cloud type transitions.

Declaration
[Tooltip("Specifies the internal texture resolution used for the cloud map in the advanced mode. A lower value will lead to higher performance, but less precise cloud type transitions.")]
public VolumetricClouds.CloudMapResolutionParameter cloudMapResolution
Field Value
Type Description
VolumetricClouds.CloudMapResolutionParameter

cloudMapSpeedMultiplier

Controls the multiplier to the speed of the cloud map.

Declaration
[Tooltip("Controls the multiplier to the speed of the cloud map.")]
public ClampedFloatParameter cloudMapSpeedMultiplier
Field Value
Type Description
ClampedFloatParameter

cloudOffset

Offset (x,y) of the cloud map.

Declaration
[Tooltip("Offset (x,y) of the cloud map.")]
public Vector2Parameter cloudOffset
Field Value
Type Description
Vector2Parameter

cloudSimpleMode

Specifies the quality mode used to render the volumetric clouds.

Declaration
public VolumetricClouds.CloudSimpleModeParameter cloudSimpleMode
Field Value
Type Description
VolumetricClouds.CloudSimpleModeParameter

cloudTiling

Tiling (x,y) of the cloud map.

Declaration
[Tooltip("Tiling (x,y) of the cloud map.")]
public Vector2Parameter cloudTiling
Field Value
Type Description
Vector2Parameter

cumulonimbusMap

Specifies the anvil shaped clouds distribution in the advanced mode.

Declaration
[Tooltip("Specifies the anvil shaped clouds distribution in the advanced mode.")]
public TextureParameter cumulonimbusMap
Field Value
Type Description
TextureParameter

cumulonimbusMapMultiplier

Overrides the coverage of the anvil shaped clouds specified in the cumulonimbus map in the advanced mode.

Declaration
[Tooltip("Overrides the coverage of the anvil shaped clouds specified in the cumulonimbus map in the advanced mode.")]
public ClampedFloatParameter cumulonimbusMapMultiplier
Field Value
Type Description
ClampedFloatParameter

cumulusMap

Specifies the lower cloud layer distribution in the advanced mode.

Declaration
[Tooltip("Specifies the lower cloud layer distribution in the advanced mode.")]
public TextureParameter cumulusMap
Field Value
Type Description
TextureParameter

cumulusMapMultiplier

Overrides the coverage of the lower cloud layer specified in the cumulus map in the advanced mode.

Declaration
[Tooltip("Overrides the coverage of the lower cloud layer specified in the cumulus map in the advanced mode.")]
public ClampedFloatParameter cumulusMapMultiplier
Field Value
Type Description
ClampedFloatParameter

densityCurve

Controls the density (Y axis) of the volumetric clouds as a function of the height (X Axis) inside the cloud volume.

Declaration
[Tooltip("Controls the density (Y axis) of the volumetric clouds as a function of the height (X Axis) inside the cloud volume.")]
public AnimationCurveParameter densityCurve
Field Value
Type Description
AnimationCurveParameter

densityMultiplier

Controls the global density of the cloud volume.

Declaration
[Tooltip("Controls the global density of the cloud volume.")]
public ClampedFloatParameter densityMultiplier
Field Value
Type Description
ClampedFloatParameter

earthCurvature

Controls the curvature of the cloud volume which defines the distance at which the clouds intersect with the horizon.

Declaration
[Tooltip("Controls the curvature of the cloud volume which defines the distance at which the clouds intersect with the horizon.")]
public ClampedFloatParameter earthCurvature
Field Value
Type Description
ClampedFloatParameter

enable

Enable/Disable the volumetric clouds effect.

Declaration
[Tooltip("Enable/Disable the volumetric clouds effect.")]
public BoolParameter enable
Field Value
Type Description
BoolParameter

erosionCurve

Controls the erosion (Y axis) of the volumetric clouds as a function of the height (X Axis) inside the cloud volume.

Declaration
[Tooltip("Controls the erosion (Y axis) of the volumetric clouds as a function of the height (X Axis) inside the cloud volume.")]
public AnimationCurveParameter erosionCurve
Field Value
Type Description
AnimationCurveParameter

erosionFactor

Controls the smaller noise on the edge of the clouds. A higher value will erode clouds more significantly.

Declaration
[Tooltip("Controls the smaller noise on the edge of the clouds. A higher value will erode clouds more significantly.")]
public ClampedFloatParameter erosionFactor
Field Value
Type Description
ClampedFloatParameter

erosionNoiseType

Controls the type of noise used to generate the smaller noise passing through the cloud coverage.

Declaration
[Tooltip("Controls the type of noise used to generate the smaller noise passing through the cloud coverage.")]
public VolumetricClouds.CloudErosionNoiseParameter erosionNoiseType
Field Value
Type Description
VolumetricClouds.CloudErosionNoiseParameter

erosionOcclusion

Controls how much Erosion Factor is taken into account when computing ambient occlusion. The Erosion Factor parameter is editable in the custom preset, Advanced and Manual Modes.

Declaration
[Tooltip("Controls how much Erosion Factor is taken into account when computing ambient occlusion. The Erosion Factor parameter is editable in the custom preset, Advanced and Manual Modes.")]
public ClampedFloatParameter erosionOcclusion
Field Value
Type Description
ClampedFloatParameter

erosionScale

Controls the size of the smaller noise passing through the cloud coverage.

Declaration
[Tooltip("Controls the size of the smaller noise passing through the cloud coverage.")]
public MinFloatParameter erosionScale
Field Value
Type Description
MinFloatParameter

erosionSpeedMultiplier

Controls the multiplier to the speed of the erosion cloud shapes.

Declaration
[Tooltip("Controls the multiplier to the speed of the erosion cloud shapes.")]
public ClampedFloatParameter erosionSpeedMultiplier
Field Value
Type Description
ClampedFloatParameter

fadeInDistance

Controls the distance that it takes for the clouds to reach their complete density.

Declaration
[Tooltip("Controls the distance that it takes for the clouds to reach their complete density.")]
public MinFloatParameter fadeInDistance
Field Value
Type Description
MinFloatParameter

fadeInMode

Controls the mode in which the clouds fade in when close to the camera's near plane.

Declaration
[Tooltip("Controls the mode in which the clouds fade in when close to the camera's near plane.")]
public VolumetricClouds.CloudFadeInModeParameter fadeInMode
Field Value
Type Description
VolumetricClouds.CloudFadeInModeParameter

fadeInStart

Controls the minimal distance at which clouds start appearing.

Declaration
[Tooltip("Controls the minimal distance at which clouds start appearing.")]
public MinFloatParameter fadeInStart
Field Value
Type Description
MinFloatParameter

ghostingReduction

Enable/Disable the volumetric clouds ghosting reduction. When enabled, reduces significantly the ghosting of the volumetric clouds, but may introduce some flickering at lower temporal accumulation factors.

Declaration
[Tooltip("Enable/Disable the volumetric clouds ghosting reduction. When enabled, reduces significantly the ghosting of the volumetric clouds, but may introduce some flickering at lower temporal accumulation factors.")]
public BoolParameter ghostingReduction
Field Value
Type Description
BoolParameter

globalWindSpeed

Sets the global horizontal wind speed in kilometers per hour. This value can be relative to the Global Wind Speed defined in the Visual Environment.

Declaration
[Tooltip("Sets the global horizontal wind speed in kilometers per hour.\nThis value can be relative to the Global Wind Speed defined in the Visual Environment.")]
public WindSpeedParameter globalWindSpeed
Field Value
Type Description
WindSpeedParameter

localClouds

When enabled, clouds are part of the scene and you can interact with them. This means you can move around and inside the clouds, they can appear between the Camera and other GameObjects, and the Camera's clipping planes affect the clouds. When disabled, the clouds are part of the skybox. This means the clouds and their shadows appear relative to the Camera and always appear behind geometry.

Declaration
[Tooltip("When enabled, clouds are part of the scene and you can interact with them. This means you can move around and inside the clouds, they can appear between the Camera and other GameObjects, and the Camera's clipping planes affect the clouds. When disabled, the clouds are part of the skybox. This means the clouds and their shadows appear relative to the Camera and always appear behind geometry.")]
public BoolParameter localClouds
Field Value
Type Description
BoolParameter

microErosion

When enabled, an additional noise should be evaluated for the clouds in the advanced and manual modes. This increases signficantly the cost of the volumetric clouds.

Declaration
[Tooltip("When enabled, an additional noise should be evaluated for the clouds in the advanced and manual modes. This increases signficantly the cost of the volumetric clouds.")]
public BoolParameter microErosion
Field Value
Type Description
BoolParameter

microErosionFactor

Controls the smallest noise on the edge of the clouds. A higher value will erode clouds more.

Declaration
[Tooltip("Controls the smallest noise on the edge of the clouds. A higher value will erode clouds more.")]
public ClampedFloatParameter microErosionFactor
Field Value
Type Description
ClampedFloatParameter

microErosionScale

Controls the size of the smaller noise passing through the cloud coverage.

Declaration
[Tooltip("Controls the size of the smaller noise passing through the cloud coverage.")]
public MinFloatParameter microErosionScale
Field Value
Type Description
MinFloatParameter

multiScattering

Controls the amount of multi-scattering inside the cloud.

Declaration
[Tooltip("Controls the amount of multi-scattering inside the cloud.")]
public ClampedFloatParameter multiScattering
Field Value
Type Description
ClampedFloatParameter

numLightSteps

Controls the number of steps when evaluating the clouds' lighting. A higher value will lead to smoother lighting and improved self-shadowing, but at a higher cost.

Declaration
[Tooltip("Controls the number of steps when evaluating the clouds' lighting. A higher value will lead to smoother lighting and improved self-shadowing, but at a higher cost.")]
public ClampedIntParameter numLightSteps
Field Value
Type Description
ClampedIntParameter

numPrimarySteps

Controls the number of steps when evaluating the clouds' transmittance. A higher value may lead to a lower noise level and longer view distance, but at a higher cost.

Declaration
[Tooltip("Controls the number of steps when evaluating the clouds' transmittance. A higher value may lead to a lower noise level and longer view distance, but at a higher cost.")]
public ClampedIntParameter numPrimarySteps
Field Value
Type Description
ClampedIntParameter

orientation

Controls the orientation of the wind relative to the X world vector. This value can be relative to the Global Wind Orientation defined in the Visual Environment.

Declaration
[Tooltip("Controls the orientation of the wind relative to the X world vector.\nThis value can be relative to the Global Wind Orientation defined in the Visual Environment.")]
public WindOrientationParameter orientation
Field Value
Type Description
WindOrientationParameter

perceptualBlending

Specifies the strength of the perceptual blending for the volumetric clouds. This value should be treated as flag and only be set to 0.0 or 1.0.

Declaration
[Tooltip("Specifies the strength of the perceptual blending for the volumetric clouds. This value should be treated as flag and only be set to 0.0 or 1.0.")]
public ClampedFloatParameter perceptualBlending
Field Value
Type Description
ClampedFloatParameter

powderEffectIntensity

Controls the amount of local scattering in the clouds. A higher value may produce a more powdery or diffused aspect.

Declaration
[Tooltip("Controls the amount of local scattering in the clouds. A higher value may produce a more powdery or diffused aspect.")]
public ClampedFloatParameter powderEffectIntensity
Field Value
Type Description
ClampedFloatParameter

rainMap

Specifies the rain distribution in the advanced mode.

Declaration
[Tooltip("Specifies the rain distribution in the advanced mode.")]
public TextureParameter rainMap
Field Value
Type Description
TextureParameter

scatteringTint

Specifies the tint of the cloud scattering color.

Declaration
[Tooltip("Specifies the tint of the cloud scattering color.")]
public ColorParameter scatteringTint
Field Value
Type Description
ColorParameter

shadowDistance

Sets the size of the area covered by shadow around the camera.

Declaration
[Tooltip("Sets the size of the area covered by shadow around the camera.")]
public MinFloatParameter shadowDistance
Field Value
Type Description
MinFloatParameter

shadowOpacity

Controls the opacity of the volumetric clouds shadow.

Declaration
[Tooltip("Controls the opacity of the volumetric clouds shadow.")]
public ClampedFloatParameter shadowOpacity
Field Value
Type Description
ClampedFloatParameter

shadowOpacityFallback

Controls the shadow opacity when outside the area covered by the volumetric clouds shadow.

Declaration
[Tooltip("Controls the shadow opacity when outside the area covered by the volumetric clouds shadow.")]
public ClampedFloatParameter shadowOpacityFallback
Field Value
Type Description
ClampedFloatParameter

shadowResolution

Specifies the resolution of the volumetric clouds shadow map.

Declaration
[Tooltip("Specifies the resolution of the volumetric clouds shadow map.")]
public VolumetricClouds.CloudShadowResolutionParameter shadowResolution
Field Value
Type Description
VolumetricClouds.CloudShadowResolutionParameter

shadows

When enabled, HDRP evaluates the Volumetric Clouds' shadows. The Volumetric Clouds shadow is rendered independently of the shadow map toggle of the directional light.

Declaration
[Tooltip("When enabled, HDRP evaluates the Volumetric Clouds' shadows. The Volumetric Clouds shadow is rendered independently of the shadow map toggle of the directional light.")]
public BoolParameter shadows
Field Value
Type Description
BoolParameter

shapeFactor

Controls the larger noise passing through the cloud coverage. A higher value will yield less cloud coverage and smaller clouds.

Declaration
[Tooltip("Controls the larger noise passing through the cloud coverage. A higher value will yield less cloud coverage and smaller clouds.")]
public ClampedFloatParameter shapeFactor
Field Value
Type Description
ClampedFloatParameter

shapeOffset

Controls the world space offset applied when evaluating the larger noise passing through the cloud coverage.

Declaration
[Tooltip("Controls the world space offset applied when evaluating the larger noise passing through the cloud coverage.")]
public Vector3Parameter shapeOffset
Field Value
Type Description
Vector3Parameter

shapeScale

Controls the size of the larger noise passing through the cloud coverage.

Declaration
[Tooltip("Controls the size of the larger noise passing through the cloud coverage.")]
public MinFloatParameter shapeScale
Field Value
Type Description
MinFloatParameter

shapeSpeedMultiplier

Controls the multiplier to the speed of the larger cloud shapes.

Declaration
[Tooltip("Controls the multiplier to the speed of the larger cloud shapes.")]
public ClampedFloatParameter shapeSpeedMultiplier
Field Value
Type Description
ClampedFloatParameter

sunLightDimmer

Controls the influence of the sun light on the cloud volume. A lower value will suppress the sun light and produce darker clouds overall.

Declaration
[Tooltip("Controls the influence of the sun light on the cloud volume. A lower value will suppress the sun light and produce darker clouds overall.")]
public ClampedFloatParameter sunLightDimmer
Field Value
Type Description
ClampedFloatParameter

temporalAccumulationFactor

Temporal accumulation increases the visual quality of clouds by decreasing the noise. A higher value will give you better quality but can create ghosting.

Declaration
[Tooltip("Temporal accumulation increases the visual quality of clouds by decreasing the noise. A higher value will give you better quality but can create ghosting.")]
public ClampedFloatParameter temporalAccumulationFactor
Field Value
Type Description
ClampedFloatParameter

verticalErosionWindSpeed

Controls the vertical wind speed of the erosion cloud shapes.

Declaration
[Tooltip("Controls the vertical wind speed of the erosion cloud shapes.")]
public FloatParameter verticalErosionWindSpeed
Field Value
Type Description
FloatParameter

verticalShapeWindSpeed

Controls the vertical wind speed of the larger cloud shapes.

Declaration
[Tooltip("Controls the vertical wind speed of the larger cloud shapes.")]
public FloatParameter verticalShapeWindSpeed
Field Value
Type Description
FloatParameter

Properties

cloudPreset

Specifies the weather preset in Simple mode.

Declaration
public VolumetricClouds.CloudPresets cloudPreset { get; set; }
Property Value
Type Description
VolumetricClouds.CloudPresets

Methods

OnAfterDeserialize()

Called after deserializing

Declaration
public void OnAfterDeserialize()

OnBeforeSerialize()

Called before serializing

Declaration
public void OnBeforeSerialize()

Implements