UKismetMathLibrary::Subtract_LinearColorLinearColor

function Engine Blueprint Since 4.0

#include "Kismet/KismetMathLibrary.h"

Access: public Specifiers: staticUFUNCTIONBlueprintPure

Description

Subtracts color B from color A channel-by-channel (A.R-B.R, A.G-B.G, A.B-B.B, A.A-B.A). The Blueprint - operator for LinearColor.

Caveats & Gotchas

• Channels are not clamped — if B's channel exceeds A's, the result is negative, which is physically meaningless for color but valid in HDR math pipelines.
• Subtracting colors is rarely the right tool for blending; for most visual effects, lerp or multiply produce more predictable results.

Signature

static UE_INL_API FLinearColor Subtract_LinearColorLinearColor(FLinearColor A, FLinearColor B);

Parameters

Name	Type	Description	Default
A	FLinearColor	Color to subtract from.	—
B	FLinearColor	Color to subtract.	—

Return Type

FLinearColor

Example

Remove a tint from a composite color C++

FLinearColor Composite = FLinearColor(0.8f, 0.5f, 0.3f, 1.f);
FLinearColor Tint      = FLinearColor(0.2f, 0.1f, 0.0f, 0.f);
FLinearColor Base = UKismetMathLibrary::Subtract_LinearColorLinearColor(Composite, Tint);
// Base = (0.6, 0.4, 0.3, 1.0)

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

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