FPassthroughBlendTraitSharedData | Unreal Engine 5.7 Documentation

API > API/Plugins > API/Plugins/UAFAnimGraph

It will generate an output using the base trait input keyframe and the selected alpha blend type (float, bool or curve) Requires a base trait with a single input and PostEvaluate task creation (currently used to blend Control Rig Trait)

If alpha type is Float or Bool Depending on the weight value

0 (not relevant) : The input "as is" will be the output (passthrough). No call to PostEvaluate on the base will be performed.
1 (full weight) : The output of the base will be used as the output without blending by calling base PostEvaluate
Any other relevant weight : Input will be duplicated (with a task) in Post Evaluate The base Post Evaluate will be called to execute on the copy (normally will create a task) Both keyframes (original and copy with base modifications) will be blended using a two keyframes blend task, passing the calculated alpha blend weight

If alpha type is Curve The curve value is not known until we are in the task (because we need the keyframe to extract the curve value) Currently, the process will generate a full blend : A task will added to duplicate input keyframe at PostEvaluate Base PostEvaluate will be called to allow task creation Resulting keyframes will be blended with a two keyframes blend task, passing the curve data so the alpha can be obtained If we try to get current alpha value of a Curve blend type, the returned value will be 1


Name	FPassthroughBlendTraitSharedData
Type	struct
Header File	/Engine/Plugins/Experimental/UAF/UAFAnimGraph/Source/UAFAnimGraph/Public/Traits/PassthroughBlendTrait.h
Include Path	#include "Traits/PassthroughBlendTrait.h"

Syntax

USTRUCT (Meta=(DisplayName="Passthrough Blend", ShowTooltip=true))  
struct FPassthroughBlendTraitSharedData : public FAnimNextTraitSharedData

Inheritance Hierarchy

FAnimNextTraitSharedData → FPassthroughBlendTraitSharedData

Typedefs

Name	Type	Remarks	Include Path
Self	FPassthroughBlendTraitSharedData		Traits/PassthroughBlendTrait.h

Variables

Public

Name	Type	Remarks	Include Path	Unreal Specifiers
Alpha	float	Alpha value handler	Traits/PassthroughBlendTrait.h	EditAnywhere Category=Settings Meta=(EditConditionHides, EditCondition="AlphaInputType == EAnimAlphaInputType::Float")
AlphaBoolBlend	FInputAlphaBoolBlend		Traits/PassthroughBlendTrait.h	EditAnywhere Category=Settings Meta=(Hidden, DisplayName="Blend Settings", EditConditionHides, EditCondition="AlphaInputType == EAnimAlphaInputType::Bool")
AlphaCurveName	FName		Traits/PassthroughBlendTrait.h	EditAnywhere Category=Settings Meta=(EditConditionHides, EditCondition="AlphaInputType == EAnimAlphaInputType::Curve")
AlphaInputType	EAnimAlphaInputType		Traits/PassthroughBlendTrait.h	EditAnywhere Category=Settings
AlphaScaleBias	FInputScaleBias		Traits/PassthroughBlendTrait.h	EditAnywhere Category=Settings Meta=(Hidden, EditConditionHides, EditCondition="AlphaInputType == EAnimAlphaInputType::Float")
AlphaScaleBiasClamp	FInputScaleBiasClamp		Traits/PassthroughBlendTrait.h	EditAnywhere Category=Settings Meta=(Hidden, DisplayAfter="AlphaCurveName", EditConditionHides, EditCondition="AlphaInputType == EAnimAlphaInputType::Float \|\| AlphaInputType == EAnimAlphaInputType::Curve")
bAlphaBoolEnabled	bool		Traits/PassthroughBlendTrait.h	EditAnywhere Category=Settings Meta=(DisplayName="bEnabled", EditConditionHides, EditCondition="AlphaInputType == EAnimAlphaInputType::Bool")

Functions

Public

Name	Remarks	Include Path	Unreal Specifiers
const decltype(Alpha) & GetAlpha ( const UE::UAF::FTraitBinding& Binding ) const		Traits/PassthroughBlendTrait.h
const decltype(AlphaBoolBlend) & GetAlphaBoolBlend ( const UE::UAF::FTraitBinding& Binding ) const		Traits/PassthroughBlendTrait.h
const decltype(AlphaCurveName) & GetAlphaCurveName ( const UE::UAF::FTraitBinding& Binding ) const		Traits/PassthroughBlendTrait.h
const decltype(AlphaInputType) & GetAlphaInputType ( const UE::UAF::FTraitBinding& Binding ) const		Traits/PassthroughBlendTrait.h
const decltype(bAlphaBoolEnabled) & GetbAlphaBoolEnabled ( const UE::UAF::FTraitBinding& Binding ) const		Traits/PassthroughBlendTrait.h

Static

Name	Remarks	Include Path	Unreal Specifiers
static void ConstructLatentProperties ( const UE::UAF::FTraitBinding& Binding )		Traits/PassthroughBlendTrait.h
static void DestructLatentProperties ( const UE::UAF::FTraitBinding& Binding )		Traits/PassthroughBlendTrait.h
static int32 GetLatentPropertyIndex ( const size_t LatentPropertyOffset )		Traits/PassthroughBlendTrait.h

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