This sort of thing is where substance falls down. It's basically impossible to have dynamic length lists of inputs. You could certainly crop the text node output and feed the result to an fx-map based node but you'll still have to define every single possible input to that node. I expect you could use the automation…
I want to create a grid of random characters. I am new to functions and FXmap/Pixel Processor. It's possible to chain together several tile gen/samplers with unique image inputs of different characters, but it seems overly complicated and a pain, especially if i want hundreds of characters. Also thinking it may be useful…