UKismetMathLibrary::LinearColor_ToNewOpacity
#include "Kismet/KismetMathLibrary.h"
Access: public
Specifiers: staticUFUNCTIONBlueprintPure
Description
Returns a copy of InColor with the alpha channel replaced by InOpacity, leaving R, G, B unchanged.
Caveats & Gotchas
- • Does not clamp InOpacity — passing values outside [0,1] produces a color with an out-of-range alpha, which may cause unexpected blending results in materials.
- • Returns a new FLinearColor by value; the original color is not modified.
Signature
static UE_INL_API FLinearColor LinearColor_ToNewOpacity(FLinearColor InColor, float InOpacity);Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| InColor | FLinearColor | Source color whose RGB channels are preserved. | — |
| InOpacity | float | New alpha value to assign. | — |
Return Type
FLinearColor Example
Fade a color to semi-transparent C++
FLinearColor BaseColor = FLinearColor::Red;
FLinearColor FadedColor = UKismetMathLibrary::LinearColor_ToNewOpacity(BaseColor, 0.5f);
// FadedColor is (1,0,0,0.5)See Also
Version History
Introduced in: 4.0
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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