3883a88d4e
The alpha channel value was previously hard codded to one in the lens distortion node. This patch solves that by integrating the alpha as well in the radial distortion mode and taking the average alpha in the horizontal case. This breaks backward compatibility, but is what users what in most cases, so it is acceptable. Fixes #134658. Pull Request: https://projects.blender.org/blender/blender/pulls/137994