I am trying to improve a model I made years ago in Lightwave 3D. I've imported it into Blender. It had an awful, messed up UV map. I created a new UDIM and unwrapped the model again. I wanted to bake the textures as they were in the old UV map.
My problem is, I can only seem to bake to the first UDIM tile, 1001. The others are untouched. I looked up instructions on baking textures, but apparently I was doing something wrong. I kept getting an error message, "Circular dependence". After fumbling around, I managed to get the first tile, 1001, to bake the way I wanted, but not the rest. I finally gave up and just used Photoshop to re-do textures.
Now, I'm trying to further refine one of the UDIM unwraps by baking it to another UV map. Again, having the same circular dependence error, and my UDIM texture is overwritten, not the new image I created for the bake. I put an image texture node in my surface and selected the new image before baking, which I thought was the "bake to" image, instead it overwrites my UDIM image.
I wish there was baking UI that specifically asks for "bake to" and "bake from" images. The way it is now is not clear at all. I know I'm doing something wrong, but I am following instructions.
Thanks in advance for the help!