file
class        class URendererSettings : public UDeveloperSettings

	UPROPERTY(config, EditAnywhere, Category=Postprocessing, meta=(
		ConsoleVariable="r.CustomDepth",DisplayName="Custom Depth-Stencil Pass",
		ToolTip="Whether the custom depth pass for tagging primitives for postprocessing passes is enabled. Enabling it on demand can save memory but may cause a hitch the first time the feature is used."))
	TEnumAsByte<ECustomDepthStencil::Type> CustomDepthStencil;

	UPROPERTY(config, EditAnywhere, Category = Postprocessing, meta = (
		ConsoleVariable = "r.CustomDepthTemporalAAJitter", DisplayName = "Custom Depth with TemporalAA Jitter",
		ToolTip = "Whether the custom depth pass has the TemporalAA jitter enabled. Disabling this can be useful when the result of the CustomDepth Pass is used after TAA (e.g. after Tonemapping)"))

static int32 GCustomDepthMode = 1;
static TAutoConsoleVariable<int32> CVarCustomDepth(
	TEXT("r.CustomDepth"),
	GCustomDepthMode,
	TEXT("0: feature is disabled\n")
	TEXT("1: feature is enabled, texture is created on demand\n")
	TEXT("2: feature is enabled, texture is not released until required (should be the project setting if the feature should not stall)\n")
	TEXT("3: feature is enabled, stencil writes are enabled, texture is not released until required (should be the project setting if the feature should not stall)"),
	ECVF_RenderThreadSafe);

file
namespace    anonymous
function     void StencilMerger

	{
		static bool bNotifiedAboutCustomDepth = false;
		static const auto CVarCustomDepth = IConsoleManager::Get().FindTConsoleVariableDataInt(TEXT("r.CustomDepth"));
		const int32 EnabledWithStencil = 3;

		if (CVarCustomDepth->GetValueOnAnyThread() != EnabledWithStencil && !bNotifiedAboutCustomDepth)
		{
			UE_LOG(ColorCorrectRegions, Error, TEXT("Per Actor Color Correction requires Custom Depth Mode to be set to \"Enabled With Stencil\""));
			bNotifiedAboutCustomDepth = true;

	/**
	When enabled this is the default value set on the component.
	Optionally write this 0-255 value to the stencil buffer in CustomDepth pass (Requires project setting or r.CustomDepth == 3)
	*/
	UPROPERTY(EditAnywhere, BlueprintReadOnly, AdvancedDisplay, Category="Rendering", meta=(DisplayName="Default CustomDepthStencil Value", editcondition="bOverrideCustomDepthStencilWriteMask", UIMin = "0", UIMax = "255"))
	int32 CustomDepthStencilValue = 0;

	/**
	When enabled this is the default value set on the component.
	Adjusts the translucent object sorting priority, see PrimitiveComponent description for more details.
	*/
	UPROPERTY(EditAnywhere, BlueprintReadOnly, AdvancedDisplay, Category="Rendering", meta=(editcondition="bOverrideTranslucencySortPriority"))

file
function     void UMoviePipelineDeferredPassBase::SetupImpl

	if (bEnableStencilPass)
	{
		IConsoleVariable* CVar = IConsoleManager::Get().FindConsoleVariable(TEXT("r.CustomDepth"));
		if (CVar)
		{
			PreviousCustomDepthValue = CVar->GetInt();
			const int32 CustomDepthWithStencil = 3;
			if (PreviousCustomDepthValue != CustomDepthWithStencil)
			{

file
function     void UMoviePipelineDeferredPassBase::TeardownImpl

	if (PreviousCustomDepthValue.IsSet())
	{
		IConsoleVariable* CVar = IConsoleManager::Get().FindConsoleVariable(TEXT("r.CustomDepth"));
		if (CVar)
		{
			if (CVar->GetInt() != PreviousCustomDepthValue.GetValue())
			{
				UE_LOG(LogMovieRenderPipeline, Log, TEXT("Restoring custom depth/stencil value to: %d"), PreviousCustomDepthValue.GetValue());
				CVar->Set(PreviousCustomDepthValue.GetValue(), EConsoleVariableFlags::ECVF_SetByProjectSetting);

file
class        class ERayTracingGroupCullingPriority : uint8
class        class UPrimitiveComponent : public USceneComponent, public INavRelevantInterface, public IInterface_AsyncCompilation, public IPhysicsComponent

	int32 VisibilityId=0;

	/** Optionally write this 0-255 value to the stencil buffer in CustomDepth pass (Requires project setting or r.CustomDepth == 3) */
	UPROPERTY(EditAnywhere, AdvancedDisplay, BlueprintReadOnly, Category=Rendering,  meta=(UIMin = "0", UIMax = "255", editcondition = "bRenderCustomDepth", DisplayName = "CustomDepth Stencil Value"))
	int32 CustomDepthStencilValue;

private:
	/** Optional user defined default values for the custom primitive data of this primitive */
	UPROPERTY(EditAnywhere, Category=Rendering, meta = (DisplayName = "Custom Primitive Data Defaults"))

file
class        class UFoliageType : public UObject

	ERendererStencilMask CustomDepthStencilWriteMask;

	/** Optionally write this 0-255 value to the stencil buffer in CustomDepth pass (Requires project setting or r.CustomDepth == 3) */
	UPROPERTY(EditAnywhere, AdvancedDisplay, BlueprintReadOnly, Category=InstanceSettings,  meta=(UIMin = "0", UIMax = "255", editcondition = "bRenderCustomDepth", DisplayName = "CustomDepth Stencil Value"))
	int32 CustomDepthStencilValue;

	/**
	 * Translucent objects with a lower sort priority draw behind objects with a higher priority.
	 * Translucent objects with the same priority are rendered from back-to-front based on their bounds origin.

	ERendererStencilMask CustomDepthStencilWriteMask;

	/** Optionally write this 0-255 value to the stencil buffer in CustomDepth pass (Requires project setting or r.CustomDepth == 3) */
	UPROPERTY(EditAnywhere, AdvancedDisplay, BlueprintReadOnly, Category=Rendering,  meta=(UIMin = "0", UIMax = "255", editcondition = "bRenderCustomDepth", DisplayName = "CustomDepth Stencil Value", LandscapeOverridable))
	int32 CustomDepthStencilValue;

	/**  Max draw distance exposed to LDs. The real max draw distance is the min (disregarding 0) of this and volumes affecting this object. */
	UPROPERTY(EditAnywhere, AdvancedDisplay, BlueprintReadOnly, Category=Rendering, meta = (DisplayName = "Desired Max Draw Distance", LandscapeOverridable))
	float LDMaxDrawDistance;

file
class        class ULandscapeSplineControlPoint : public UObject

	ERendererStencilMask CustomDepthStencilWriteMask;

	/** Optionally write this 0-255 value to the stencil buffer in CustomDepth pass (Requires project setting or r.CustomDepth == 3) */
	UPROPERTY(EditAnywhere, AdvancedDisplay, Category = Mesh, meta = (UIMin = "0", UIMax = "255", editcondition = "bRenderCustomDepth", DisplayName = "CustomDepth Stencil Value"))
	int32 CustomDepthStencilValue;

	/** 
	 * Array of runtime virtual textures into which we draw the spline segment. 
	 * The material also needs to be set up to output to a virtual texture. 

file
class        class ULandscapeSplineSegment : public UObject

	ERendererStencilMask CustomDepthStencilWriteMask;

	/** Optionally write this 0-255 value to the stencil buffer in CustomDepth pass (Requires project setting or r.CustomDepth == 3) */
	UPROPERTY(EditAnywhere, AdvancedDisplay, Category = LandscapeSplineMeshes, meta = (UIMin = "0", UIMax = "255", editcondition = "bRenderCustomDepth", DisplayName = "CustomDepth Stencil Value"))
	int32 CustomDepthStencilValue;

	/** 
	 * Array of runtime virtual textures into which we draw the spline segment. 
	 * The material also needs to be set up to output to a virtual texture. 

file
function     void FAvaMaskSceneViewExtension::SetupView

{
	// Don't apply without this setting
	if (GetDefault<URendererSettings>()->CustomDepthStencil != ECustomDepthStencil::EnabledWithStencil)
	{
		UE_LOG(LogAvaMaskEditor, Warning, TEXT("The Mask overlay requires CustomDepth to be \"EnabledWithStencil\" in Project Settings."))
	}
	else
	{
		FPostProcessSettings PostProcessSettings = InView.FinalPostProcessSettings;

file
class        class URendererSettings : public UDeveloperSettings

		ConsoleVariable="r.CustomDepth",DisplayName="Custom Depth-Stencil Pass",
		ToolTip="Whether the custom depth pass for tagging primitives for postprocessing passes is enabled. Enabling it on demand can save memory but may cause a hitch the first time the feature is used."))
	TEnumAsByte<ECustomDepthStencil::Type> CustomDepthStencil;

	UPROPERTY(config, EditAnywhere, Category = Postprocessing, meta = (
		ConsoleVariable = "r.CustomDepthTemporalAAJitter", DisplayName = "Custom Depth with TemporalAA Jitter",
		ToolTip = "Whether the custom depth pass has the TemporalAA jitter enabled. Disabling this can be useful when the result of the CustomDepth Pass is used after TAA (e.g. after Tonemapping)"))
	uint32 bCustomDepthTaaJitter : 1;

file
function     void FPrimitiveSceneProxy::BuildUniformShaderParameters

	if (ShouldRenderCustomDepth())
	{
		Builder.CustomDepthStencil(GetCustomDepthStencilValue(), GetStencilWriteMask());
	}
}

void FPrimitiveSceneProxy::SetTransform(FRHICommandListBase& RHICmdList, const FMatrix& InLocalToWorld, const FBoxSphereBounds& InBounds, const FBoxSphereBounds& InLocalBounds, FVector InActorPosition)
{
	// Update the cached transforms.

file
function     inline FPrimitiveUniformShaderParametersBuilder& CustomDepthStencil

	}

	inline FPrimitiveUniformShaderParametersBuilder& CustomDepthStencil(uint8 StencilValue, EStencilMask StencilWriteMask)
	{
		// Translate the enum to a mask that can be consumed by the GPU with fewer operations
		uint32 GPUStencilMask;
		switch (StencilWriteMask)
		{		
		case SM_Default:

file
function     bool FSceneRenderer::RenderCustomDepthPass

		const FSceneTexturesConfig& Config = FSceneTexturesConfig::Get();
		// TextureView is not supported in GLES, so we can't lookup CustomDepth and CustomStencil from a single texture
		// Do a copy of the CustomDepthStencil texture if CustomStencil is sampled in a shader.
		if (IsOpenGLPlatform(ShaderPlatform))
		{
			if (Config.bSamplesCustomStencil)
			{
				FRDGTextureRef CustomStencil = GraphBuilder.CreateTexture(CustomDepthTextures.Depth->Desc, TEXT("CustomStencil"));
				AddCopyTexturePass(GraphBuilder, CustomDepthTextures.Depth, CustomStencil);

file
namespace    anonymous
function     void StencilMerger

	{
		static bool bNotifiedAboutCustomDepth = false;
		static const auto CVarCustomDepth = IConsoleManager::Get().FindTConsoleVariableDataInt(TEXT("r.CustomDepth"));
		const int32 EnabledWithStencil = 3;

		if (CVarCustomDepth->GetValueOnAnyThread() != EnabledWithStencil && !bNotifiedAboutCustomDepth)
		{
			UE_LOG(ColorCorrectRegions, Error, TEXT("Per Actor Color Correction requires Custom Depth Mode to be set to \"Enabled With Stencil\""));
			bNotifiedAboutCustomDepth = true;
			return;
		}
		else if (CVarCustomDepth->GetValueOnAnyThread() == EnabledWithStencil)
		{
			bNotifiedAboutCustomDepth = false;
		}

		if (StencilIds.Num() == 0)
		{

static int32 GCustomDepthMode = 1;
static TAutoConsoleVariable<int32> CVarCustomDepth(
	TEXT("r.CustomDepth"),
	GCustomDepthMode,
	TEXT("0: feature is disabled\n")
	TEXT("1: feature is enabled, texture is created on demand\n")
	TEXT("2: feature is enabled, texture is not released until required (should be the project setting if the feature should not stall)\n")
	TEXT("3: feature is enabled, stencil writes are enabled, texture is not released until required (should be the project setting if the feature should not stall)"),

file
function     void OnCustomDepthChanged

	FlushRenderingCommands();
	FGlobalComponentReregisterContext ReregisterContext;
	GCustomDepthMode = CVarCustomDepth.GetValueOnAnyThread();
}

void InitCustomDepth()
{
	CVarCustomDepth.AsVariable()->SetOnChangedCallback(FConsoleVariableDelegate::CreateStatic(&OnCustomDepthChanged));
}

ECustomDepthMode GetCustomDepthMode()
{
	switch (GCustomDepthMode)
	{