Fix: Change alpha application for RGBA from overwrite to multiply #30523
+85
−11
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
PR summary
Address issue #26092
Per community consensus in #26092, the behavior for RGBA inputs has been changed from overwriting to blending; the image's intrinsic alpha is now multiplied with the passed alpha value. This change unifies alpha handling for 2D, RGB, and RGBA images, making the behavior consistent and predictable.
PR checklist