Fix WB oit premultiplied blending
The output color is not multiplied by alpha so semitransparent parts
become too bright. The lancelot tests will have the baseline images with
the old blending so they will conflict.
Pick-to: 6.12
Fixes: QTBUG-151528
Change-Id: Ife2ed690125c650f3d41d3a806842821583f16a9
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
| commit | 24ca940514dc67b7f221b85c7680b765935cce3a |
| parent | 04a8b4dddfc3b577b079e76e1902322f6dd1fb4b |
| author | Antti Määttä <antti.maatta@qt.io> |
| committer | Antti Määttä <antti.maatta@qt.io> |
| commit time | Thu, 15 Oct 2026 12:18:30 +0000 |