I am trying to fix this game asset's UVs. I have pinned UV islands which I do not want to move. But the rest of the UVs I want to unpack (again) into the same UV area without overlapping them. If I could get a similar texel density that would be a plus. If there is a plugin that would allow me to draw a square of where to pack UV islands/ where not to pack that would be ideal. I have the UV-packer plugin but that does not seem to be able to do it. I am using Blender 3.6 or 4.0
When I try to pack islands with the pinned UVs locked it still overlaps:
