Played around with Material Maker yesterday. Getting better at it, it's really nice for seamless stuff, but it's also kinda unpolished and has very poor UI performance. It seems to cause Mesa (or something) on my ghettopad to stutter intermittently without displaying any CPU or iGPU load via intel tools.
It makes me want to try Substance Designer, but I hate the idea of using these extremely anti-consumer "industry tools". Usually the cracks are also these fragile authorization server emulator or whatever. I dunno, I haven't even looked what the crack situation is like for Substance Designer.
