UGameplayStatics::DeprojectSceneCaptureComponentToWorld

function Engine Blueprint Since 4.12

#include "Kismet/GameplayStatics.h"

Access: public Specifiers: staticBlueprintPure

Description

Converts a UV coordinate in a USceneCaptureComponent2D render target into a world-space position and ray. Use when you have a component reference rather than an ASceneCapture2D actor reference.

Caveats & Gotchas

• Functionally equivalent to DeprojectSceneCaptureToWorld but takes a component reference; prefer this variant when your code already holds the component to avoid an extra GetOwner() call.
• TargetUV is normalized 0-1 UV space — divide pixel coordinates by render target resolution before passing in.
• The component's TextureTarget must be assigned and the capture must have rendered at least once; otherwise the view parameters may be stale or zeroed.

Signature

static ENGINE_API bool DeprojectSceneCaptureComponentToWorld(USceneCaptureComponent2D* SceneCaptureComponent2D, const FVector2D& TargetUV, FVector& WorldPosition, FVector& WorldDirection);

Parameters

Name	Type	Description	Default
SceneCaptureComponent2D	USceneCaptureComponent2D*	The scene capture component whose view is used for deprojection.	—
TargetUV	const FVector2D&	UV coordinate in the render target (0,0) to (1,1) to deproject.	—
WorldPosition	FVector&	Output: world-space position on the near plane of the capture component.	—
WorldDirection	FVector&	Output: normalized world-space direction through the given UV.	—

Return Type

bool

Example

Deproject a security camera component UV to world ray C++

FVector WorldPos, WorldDir;
if (UGameplayStatics::DeprojectSceneCaptureComponentToWorld(
    SecurityCamComponent, ClickUV, WorldPos, WorldDir))
{
    FHitResult Hit;
    GetWorld()->LineTraceSingleByChannel(Hit, WorldPos, WorldPos + WorldDir * 20000.f, ECC_Visibility);
}

Version History

Introduced in: 4.12

Version	Status	Notes
5.6	stable	—

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