DECLARE_DELEGATE_RetVal¶

DECLARE_DELEGATE_RetVal(bool, FGetIsSimulatingInEditor)

DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam¶

DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FOnTickFloatCurve, float, Value)

DECLARE_DYNAMIC_MULTICAST_DELEGATE¶

DECLARE_DYNAMIC_MULTICAST_DELEGATE(FOnCompleteFloatCurve)

DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam¶

DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FOnTickVectorCurve, FVector, Value)

DECLARE_DYNAMIC_MULTICAST_DELEGATE¶

DECLARE_DYNAMIC_MULTICAST_DELEGATE(FOnCompleteVectorCurve)

DECLARE_MULTICAST_DELEGATE_ThreeParams¶

DECLARE_MULTICAST_DELEGATE_ThreeParams(FOnPreTick, float, const FComposableCameraPose &, FComposableCameraPose &)

Called before any internal node is executed.

DECLARE_MULTICAST_DELEGATE_ThreeParams¶

DECLARE_MULTICAST_DELEGATE_ThreeParams(FOnPostTick, float, const FComposableCameraPose &, FComposableCameraPose &)

Called after all internal nodes are executed.

DECLARE_DYNAMIC_MULTICAST_DELEGATE_ThreeParams¶

DECLARE_DYNAMIC_MULTICAST_DELEGATE_ThreeParams(FOnActionPreTick, float, DeltaTime, const FComposableCameraPose &, CurrentCameraPose, FComposableCameraPose &, OutputPose)

Called before any internal node is executed for camera actions.

DECLARE_DYNAMIC_MULTICAST_DELEGATE_ThreeParams¶

DECLARE_DYNAMIC_MULTICAST_DELEGATE_ThreeParams(FOnActionPostTick, float, DeltaTime, const FComposableCameraPose &, CurrentCameraPose, FComposableCameraPose &, OutputPose)

Called after all internal nodes are executed for camera actions.

DECLARE_DYNAMIC_DELEGATE_OneParam¶

DECLARE_DYNAMIC_DELEGATE_OneParam(FOnCameraFinishConstructed, AComposableCameraCameraBase *, Camera)

Called when the camera finishes constructed, before BeginPlay is called.

DECLARE_LOG_CATEGORY_EXTERN¶

DECLARE_LOG_CATEGORY_EXTERN(LogComposableCameraSystem, Log, All)

TryMapPropertyToPinType¶

inline bool TryMapPropertyToPinType(const FProperty * Property, EComposableCameraPinType & OutPinType, UScriptStruct *& OutStructType, UEnum *& OutEnumType, UFunction ** OutSignatureFunction)

Attempt to map an FProperty (from UClass reflection) to an EComposableCameraPinType.

Returns true if the property type has a direct pin-type mapping. Returns false for unsupported types (arrays, maps, sets, Instanced object properties, FString, etc.).

For Enum-typed properties (FEnumProperty for enum class, or FByteProperty whose IntPropertyEnum is set), OutEnumType receives the backing UEnum. For Struct-typed properties that aren't one of the hard-coded math types, OutStructType receives the specific UScriptStruct. Both are cleared on entry.

Used by DeclareSubobjectPins to auto-discover exposable sub-properties of an Instanced UObject, and by ApplySubobjectPinValues to dispatch typed reads.

GetPinTypeSize¶

inline int32 GetPinTypeSize(EComposableCameraPinType PinType, UScriptStruct * StructType)

Returns the size in bytes of a given pin type. For Struct types, returns 0 — caller must query StructType->GetStructureSize().

GetPinTypeAlignment¶

inline int32 GetPinTypeAlignment(EComposableCameraPinType PinType, UScriptStruct * StructType)

Returns the alignment requirement of a given pin type.

DECLARE_MULTICAST_DELEGATE¶

DECLARE_MULTICAST_DELEGATE(FOnTransitionFinishes)

DECLARE_DYNAMIC_DELEGATE_RetVal¶

DECLARE_DYNAMIC_DELEGATE_RetVal(TArray< float >, FOnReceiveMixingCameraWeights)

ComposableCameraDebug¶

Namespace for debug formatting utilities used by both the ShowDebug HUD (runtime) and the editor debug overlay (WITH_EDITOR).

All functions allocate FStrings — they are intended for debug display, not hot-path evaluation.

Functions¶

FormatFloat¶

inline

inline FString FormatFloat(double Value)

Format a float to a compact display string.

FormatVector¶

inline

inline FString FormatVector(const FVector & V)

Format an FVector to a compact display string.

FormatRotator¶

inline

inline FString FormatRotator(const FRotator & R)

Format an FRotator to a compact display string.

FormatTransform¶

inline

inline FString FormatTransform(const FTransform & T)

Format an FTransform to a compact display string.

FormatTypedValue¶

inline

inline FString FormatTypedValue(const FComposableCameraRuntimeDataBlock & DataBlock, int32 Offset, EComposableCameraPinType PinType, const UEnum * EnumType)

Read a typed value at a known byte offset from the data block and format as string. EnumType is consulted only when PinType == Enum; when supplied, the int64 slot is formatted as the corresponding entry name (e.g. "EMyEnum::Alpha"). When omitted for an Enum slot the raw int64 value is printed instead — debug-only fallback.

FormatOutputPinValue¶

inline

inline FString FormatOutputPinValue(const FComposableCameraRuntimeDataBlock & DataBlock, int32 NodeIndex, FName PinName, EComposableCameraPinType PinType, const UEnum * EnumType)

Read a typed output pin value from the data block and format as string.

ComposableCameraSystem¶

Functions¶

SmoothStep¶

inline

inline float SmoothStep(float T)

SmootherStep¶

inline

inline float SmootherStep(float T)

SimpleExpDamp¶

inline

inline double SimpleExpDamp(float DeltaTime, float DampTime, float Input)

NormalizeYaw¶

inline

inline double NormalizeYaw(double InYaw)

NormalizeVector4¶

inline

inline FVector4 NormalizeVector4(const FVector4 & V, float Tolerance)

SlerpNormalized¶

inline

inline FVector SlerpNormalized(const FVector & Start, const FVector & End, float Alpha)

Apply Slerp to two normalized vectors.

Slerp¶

inline

inline FVector Slerp(const FVector & Start, const FVector & End, float Alpha)

Apply Slerp to two vectors, no normalization is needed.

UnsignedAngleBetweenVectors¶

inline

inline float UnsignedAngleBetweenVectors(FVector V1, FVector V2)

Get the unsigned angle between two vectors.

SignedAngleBetweenVectors¶

inline

inline float SignedAngleBetweenVectors(FVector V1, FVector V2, FVector Up)

Get the signed angle between two vectors.

ApplyAdditiveCameraRotation¶

inline

inline FQuat ApplyAdditiveCameraRotation(FQuat CameraRotation, FVector2D AdditiveRotation)

Apply an additive rotation to camera rotation. First about world space yaw using AdditiveRotation.X, then about local space pitch using AdditiveRotation.Y.

GetCameraRotationFromTarget¶

inline

inline FVector2D GetCameraRotationFromTarget(FQuat CameraRotation, FVector LookAtDirection)

Get world space yaw and local space pitch change from a camera rotation to a look-at direction.

GetCameraRotationFromVectors¶

inline

inline FQuat GetCameraRotationFromVectors(FVector V1, FVector V2, FVector Up)

Get camera rotation from V1 to V2 with up vector Up.

FindEigenVectorByPowerIteration¶

inline

inline FVector4 FindEigenVectorByPowerIteration(const FMatrix & M, const FVector4 & V, const int Steps, const float Epsilon)

Power iteration to find eigenvector. Ref https://en.wikipedia.org/wiki/Power_iteration Rayleigh quotient iteration converges faster, but involving computing matrix inverse. Ref https://en.wikipedia.org/wiki/Rayleigh_quotient_iteration

MatrixInterpRotation¶

inline

inline std::pair< FRotator, FVector4 > MatrixInterpRotation(const TArray< FRotator > & Rotations, const TArray< float > & Weights, FVector4 InitialEigenVector)

CircularInterpRotation¶

inline

inline FRotator CircularInterpRotation(const TArray< FRotator > & Rotations, const TArray< float > & Weights, float Epsilon)

QuaternionInterpRotation¶

inline

inline FRotator QuaternionInterpRotation(const TArray< FRotator > & Rotations, const TArray< float > & Weights)

AngleInterpRotation¶

inline

inline FRotator AngleInterpRotation(const TArray< FRotator > & Rotations, const TArray< float > & Weights)

GetClosestAngleDegree¶

inline

template<typename... Args> inline float GetClosestAngleDegree(float InAngle, Args... Angles)

GetProjectPerpLength¶

inline

inline float GetProjectPerpLength(const FVector & A, const FVector & B)

Get the perpendicular vector's length from any vector B projecting onto a unit vector A. i.e., (B - A * (A.Dot(B)).Length().

GetProjectedPoint¶

inline

inline FVector GetProjectedPoint(const FVector & A, const FVector & B)

Get the point projected from B to a unit vector A.

ComposableCameraModifier¶

Classes¶

Typedefs¶

T_NodeClass¶

TSubclassOf< UComposableCameraCameraNodeBase > T_NodeClass()

T_NodeModifier¶

TMap< T_NodeClass, FModifierEntry > T_NodeModifier()

T_NodeModifierArray¶

TMap< T_NodeClass, TArray< FModifierEntry > > T_NodeModifierArray()

T_CameraModifier¶

TMap< FGameplayTag, T_NodeModifierArray > T_CameraModifier()