UKismetMathLibrary::HSVToRGBLinear

function Engine Blueprint Since 4.18

#include "Kismet/KismetMathLibrary.h"

Access: public Specifiers: staticUFUNCTIONBlueprintPure

Description

Converts a packed HSV FLinearColor (H in R, S in G, V in B) to linear RGB and returns it by value. Functionally identical to HSVToRGB_Vector but returns the result rather than writing to an output parameter, making it easier to chain in expressions.

Caveats & Gotchas

• The HSV packing convention — H in R (0–360), S in G, V in B — is the same as HSVToRGB_Vector but differs from some external tools that order fields differently. Double-check channel assignments when importing HSV data from outside UE.
• Returning by value means a copy of FLinearColor (16 bytes) is made on each call. In hot paths processing many colors per frame, prefer HSVToRGB_Vector which writes directly to a variable.

Signature

static UE_INL_API FLinearColor HSVToRGBLinear(FLinearColor HSV)

Parameters

Name	Type	Description	Default
HSV	FLinearColor	A FLinearColor with H in R, S in G, V in B. Alpha is passed through.	—

Return Type

FLinearColor

Example

Inline HSV-to-RGB in an expression C++

// Build HSV packed: hue = 45°, full saturation, full value
FLinearColor HSVPacked(45.0f, 1.0f, 1.0f, 1.0f);
FLinearColor LinearRGB = UKismetMathLibrary::HSVToRGBLinear(HSVPacked);
Light->SetLightColor(LinearRGB);

Version History

Introduced in: 4.18

Version	Status	Notes
5.6	stable	—

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