Hi.
I have a UV layout where part of the texture is a tank chain that tiles vertically. That UV cluster is already unwrapped and needs to stay exactly where it is.
Now I would like to add more UVs to the same map, but I can't figure out how to pack them them in a way that they "respect" the existing UV cluster and only occupy the space around it.
Is there a way to lock certain clusters in place when packing?