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

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

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

currentBakingSet

The active baking set.

Declaration

public ProbeVolumeBakingSet currentBakingSet { get; }

Property Value

Type	Description
ProbeVolumeBakingSet

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

loadMaxCellsPerFrame

Set to true to stream as many cells as possible every frame.

Declaration

public bool loadMaxCellsPerFrame { get; set; }

Property Value

Type	Description
bool

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

otherScenario

The lighting scenario APV is blending toward.

Declaration

public string otherScenario { get; }

Property Value

Type	Description
string

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

BindAPVRuntimeResources(CommandBuffer, bool)

Bind the global APV resources

Declaration

public void BindAPVRuntimeResources(CommandBuffer cmdBuffer, bool isProbeVolumeEnabled)

Parameters

Type	Name	Description
CommandBuffer	cmdBuffer	Command buffer
bool	isProbeVolumeEnabled	True if APV is enabled

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

EnableMaxCellStreaming(bool)

Enable streaming as many cells per frame as possible.

Declaration

public void EnableMaxCellStreaming(bool value)

Parameters

Type	Name	Description
bool	value	True to enable streaming as many cells per frame as possible.

GetProbeSamplingDebugResources(Camera, out GraphicsBuffer, out Vector2)

Returns the resources used for APV probe sampling debug mode

Declaration

public bool GetProbeSamplingDebugResources(Camera camera, out GraphicsBuffer resultBuffer, out Vector2 coords)

Parameters

Type	Name	Description
Camera	camera	The camera for which to evaluate the debug mode
GraphicsBuffer	resultBuffer	The buffer that should be filled with position and normal
Vector2	coords	The screen space coords to sample the position and normal

Returns

Type	Description
bool	True if the pipeline should write position and normal at coords in resultBuffer

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.

IsProbeSamplingDebugEnabled()

Checks if APV sampling debug is enabled

Declaration

public bool IsProbeSamplingDebugEnabled()

Returns

Type	Description
bool	True if APV sampling debug is enabled

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

RenderFragmentationOverlay(RenderGraph, TextureHandle, TextureHandle, DebugOverlay)

Render a debug view showing fragmentation of the GPU memory.

Declaration

public void RenderFragmentationOverlay(RenderGraph renderGraph, TextureHandle colorBuffer, TextureHandle depthBuffer, DebugOverlay debugOverlay)

Parameters

Type	Name	Description
RenderGraph	renderGraph
TextureHandle	colorBuffer
TextureHandle	depthBuffer
DebugOverlay	debugOverlay

SetActiveBakingSet(ProbeVolumeBakingSet)

Set the currently active baking set. Can be used when loading additively two scenes belonging to different baking sets to control which one is active

Declaration

public void SetActiveBakingSet(ProbeVolumeBakingSet bakingSet)

Parameters

Type	Name	Description
ProbeVolumeBakingSet	bakingSet	The baking set to load.

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. This number is capped at 10.

Declaration

public void SetNumberOfCellsLoadedPerFrame(int numberOfCells)

Parameters

Type	Name	Description
int	numberOfCells	Number of cells to be loaded per frame.

SetVertexSamplingEnabled(bool)

Communicate to the Probe Volume system whether the SRP uses per vertex sampling

Declaration

public void SetVertexSamplingEnabled(bool value)

Parameters

Type	Name	Description
bool	value	True for vertex sampling, false for pixel sampling

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

UpdateShaderVariablesProbeVolumes(CommandBuffer, ProbeVolumesOptions, int)

Update the constant buffer used by Probe Volumes in shaders.

Declaration

public bool UpdateShaderVariablesProbeVolumes(CommandBuffer cmd, ProbeVolumesOptions probeVolumeOptions, int taaFrameIndex)

Parameters

Type	Name	Description
CommandBuffer	cmd	A command buffer used to perform the data update.
ProbeVolumesOptions	probeVolumeOptions	probe volume options from the active volume stack
int	taaFrameIndex	TAA frame index

Returns

Type	Description
bool	True if successful

Extension Methods

AnalyticsUtils.ToNestedColumnWithDefault<T>(T, T, bool)