Godot Version
v4.7.1.stable.official [a13da4feb]
Question
When using either custom UV2 from Blender or one generated by Godot, I’m getting these “hotspots” on a few tris in my level geometry when baking with the LightmapGI node.
This wouldn’t be a huge issue, but they cause a ton of bloom with a black spot in the center. It seems that they are potentially creating an infinitely bright spot for some reason. When using auto-exposure, it causes a strobing effect where the screen is jumping between full-white and black when these errors are visible to the camera.
I don’t know if these artifacts have a name, but I cannot seem to locate anything about them, not even for Godot specifically. Apologies if this is a pretty common issue, I did honestly try searching for information first. I might be missing a keyword.
(I wanted to include a video, but it seems I am not allowed to do so at this time.)
I have changed many settings in the lightmap, but none seem to correct these hotspots.
Additional details:
Model was made in Blender, it is manifold, all verts are welded, backface is transparent in those locations, so it’s not an inverted normals issue from what I can tell.
Bevels were applied via modifier. Materials have been applied to all faces.
Edit 1: Formatting