That script looks pretty handy, I knew I'd seen something like it before a long while ago but could find it again. I'll probably give that a go too with your suggested single tile per field workflow, then try crunch it all for export to whatever sized atlas is finally needed! Many thanks Dave
Ah... I actually have no idea about this. Literally none, and I guess that's a deal breaker for you? Out of curiosity, have you tried seeing what impact 1 draw call VS "however many you'd need if they were separate" will have? Not doing a texture atlas at all is going to give you a boat load of control. Disregarding my…