What method(s) can I use to access, or render, a mask of all - or some - 2D UI widgets?
(A mask that is accessible in a Post Process material).
I’m trying to apply a post-processing effect in my scene, but I only want the effect where my 2D UI widgets are (and they are movable and re-sizable by the user, so I can’t rely on a static mask).
I’ve tried using a SceneTexture:SeparateTransluceny node in my post process material, without any luck (and there’s a message saying “Not yet supported” when it’s selected in the dropdown list of the SceneTexture node, which probably explains why nothing happens).