Well what the heck, here’s the addon – as it is ATM: yauva-beta-20160619.zip (15.7 KB)
I’m not quite ready to release this yet, but since the above problem is hopefully the last thing standing in my way of doing so, you all can have a little sneak preview – so lucky you! The code above can be found in Edge.py, and it’s called from OperatorSeams.py.
This addon is about texturing multiple selected (usually generated and/or similar) objects. So we’ll be marking/clearing seams, unwrapping, and manipulating (normalizing, randomizing) their UV coordinates/maps. But let’s focus on setting the seams for now, though.
Please note that he addon will only appear (Misc tab on the tool shelf) if you have 1 or more meshes selected in your scene. I suggest you start with an empty scene, add a cube to it, and set the addon properties as follows:
Pressing the Action! button should mark all edges as seams, but when you go into edit mode, you’ll see no seams. If you select 1 edge and manually mark it as a seam, you’ll observe that all edges have now been marked as seams. You wouldn’t have observed that when you did not press the Action! button before. So… ?
Also, from now on (having manually marked a seam), the addon should work as expected. You can try marking/clearing, or even be a bit more precise about what edges you want to be affected.
So what gives? It seems like something is not being updated properly. Maybe this update could be requested/forced somehow?
TIA for any tips!