>>394704648
Depends on what you want to do, it ranges anywhere from changing a texture and reuploading content to modelling armature-rigged things from scratch. I'd say that if you want to feel somewhat free in executing your ideas, you'd want to know how to weight paint, how to create a model with UV-mapped texture, how to modify and adjust armatures, how to weight paint, basics of unity like how animation system works in general, how humanoid rigging looks like, and it sounds like a lot until you realize you don't have to be good at any of that. It also comes to you very naturally: get some avatar, probably on booth, as a base, and then fuck around with it little by little until you get the knowledge. You also need to have some version control system, even if it's just you making shit ton of copies of project every day, as this process will surprise you in how bad can it go, entirely at random.

it's honestly pretty fun regardless of your initial knowledge. can be tedious, can be enraging, but i've never thought "glad it's over" after creating an avatar