A long time ago, I believe I watch a masterclass or webinar where the presenter briefly demonstrated to layouty uvs based on a texture mask.
The mask was black and whit and had a couple of shapes, and with some sops magic, Houdini was able to layout the uvs and fit them withing the texture mask. I don't remember how it was done nor can I find the video and it's driving me crazy.
Does anyone know what I'm talking about or know of the method. If so, a share will be most appreciated. Thank you.