Class ProbeReferenceVolume

The reference volume for the Probe Volume system. This defines the structure in which volume assets are loaded into. There must be only one, hence why it follow a singleton pattern.

Inheritance
object
ProbeReferenceVolume
Inherited Members
Namespace: UnityEngine.Rendering
Assembly: Unity.RenderPipelines.Core.Runtime.dll
Syntax
public class ProbeReferenceVolume

Fields

checksDuringBakeAction

An action that is used by the SRP to perform checks every frame during baking.

Declaration
public Action checksDuringBakeAction
Field Value
Type Description
Action

k_DebugPanelName

Name of debug panel for Probe Volume

Declaration
public static readonly string k_DebugPanelName
Field Value
Type Description
string

retrieveExtraDataAction

An action that is used by the SRP to retrieve extra data that was baked together with the bake

Declaration
public Action<ProbeReferenceVolume.ExtraDataActionInput> retrieveExtraDataAction
Field Value
Type Description
Action<ProbeReferenceVolume.ExtraDataActionInput>

Properties

instance

Get the instance of the probe reference volume (singleton).

Declaration
public static ProbeReferenceVolume instance { get; }
Property Value
Type Description
ProbeReferenceVolume

isInitialized

Is Probe Volume initialized.

Declaration
public bool isInitialized { get; }
Property Value
Type Description
bool

lightingScenario

The active lighting scenario.

Declaration
public string lightingScenario { get; set; }
Property Value
Type Description
string

memoryBudget

Get the memory budget for the Probe Volume system.

Declaration
public ProbeVolumeTextureMemoryBudget memoryBudget { get; }
Property Value
Type Description
ProbeVolumeTextureMemoryBudget

numberOfCellsBlendedPerFrame

Maximum number of cells that are blended per frame.

Declaration
public int numberOfCellsBlendedPerFrame { get; set; }
Property Value
Type Description
int

probeVolumesWeight

Global probe volumes weight. Allows for fading out probe volumes influence falling back to ambient probe.

Declaration
public float probeVolumesWeight { get; set; }
Property Value
Type Description
float

scenarioBlendingFactor

The blending factor currently used to blend probe data. A value of 0 means blending is not active.

Declaration
public float scenarioBlendingFactor { get; set; }
Property Value
Type Description
float

shBands

The ProbeVolumeSHBands

Declaration
public ProbeVolumeSHBands shBands { get; }
Property Value
Type Description
ProbeVolumeSHBands

subdivisionDebugColors

Colors that can be used for debug visualization of the brick structure subdivision.

Declaration
public Color[] subdivisionDebugColors { get; }
Property Value
Type Description
Color[]

turnoverRate

Percentage of cells loaded in the blending pool that can be replaced by out of date cells.

Declaration
public float turnoverRate { get; set; }
Property Value
Type Description
float

Methods

BlendLightingScenario(string, float)

Allows smooth transitions between two lighting scenarios. This only affects the runtime data used for lighting.

Declaration
public void BlendLightingScenario(string otherScenario, float blendingFactor)
Parameters
Type Name Description
string otherScenario

The name of the scenario to load.
float blendingFactor

The factor used to interpolate between the active scenario and otherScenario. Accepted values range from 0 to 1 and will progressively blend from the active scenario to otherScenario.

Cleanup()

Cleanup the Probe Volume system.

Declaration
public void Cleanup()

DataHasBeenLoaded()

Returns whether any brick data has been loaded.

Declaration
public bool DataHasBeenLoaded()
Returns
Type Description
bool

GetRuntimeResources()

Get the resources that are bound to the runtime shaders for sampling Adaptive Probe Volume data.

Declaration
public ProbeReferenceVolume.RuntimeResources GetRuntimeResources()
Returns
Type Description
ProbeReferenceVolume.RuntimeResources

The resources to bind to runtime shaders.

GetVideoMemoryCost()

Get approximate video memory impact, in bytes, of the system.

Declaration
public int GetVideoMemoryCost()
Returns
Type Description
int

An approximation of the video memory impact, in bytes, of the system

Initialize(in ProbeVolumeSystemParameters)

Initialize the Probe Volume system

Declaration
public void Initialize(in ProbeVolumeSystemParameters parameters)
Parameters
Type Name Description
ProbeVolumeSystemParameters parameters

Initialization parameters.

PerformPendingOperations()

Perform all the operations that are relative to changing the content or characteristics of the probe reference volume.

Declaration
public void PerformPendingOperations()

RenderDebug(Camera)

Render Probe Volume related debug

Declaration
public void RenderDebug(Camera camera)
Parameters
Type Name Description
Camera camera

The Camera

SetEnableStateFromSRP(bool)

Communicate to the Probe Volume system whether the SRP enables Probe Volume. It is important to keep in mind that this is not used by the system for anything else but book-keeping, the SRP is still responsible to disable anything Probe volume related on SRP side.

Declaration
public void SetEnableStateFromSRP(bool srpEnablesPV)
Parameters
Type Name Description
bool srpEnablesPV

The value of the new enabled

SetNumberOfCellsLoadedPerFrame(int)

Set the number of cells that are loaded per frame when needed.

Declaration
public void SetNumberOfCellsLoadedPerFrame(int numberOfCells)
Parameters
Type Name Description
int numberOfCells

UpdateCellStreaming(CommandBuffer, Camera)

Updates the cell streaming for a Camera

Declaration
public void UpdateCellStreaming(CommandBuffer cmd, Camera camera)
Parameters
Type Name Description
CommandBuffer cmd

The CommandBuffer
Camera camera

The Camera

UpdateConstantBuffer(CommandBuffer, ProbeVolumeShadingParameters)

Update the constant buffer used by Probe Volumes in shaders.

Declaration
public void UpdateConstantBuffer(CommandBuffer cmd, ProbeVolumeShadingParameters parameters)
Parameters
Type Name Description
CommandBuffer cmd

A command buffer used to perform the data update.
ProbeVolumeShadingParameters parameters

Parameters to be used when sampling the probe volume.

Extension Methods