I think I finally found something that unity3d can’t do! So is it possible to make buttons that the icon image is a small preview of a model just like when you have a prefab in a folder and it shows. I don’t care about graphics performance right now as I don’t mind it requiring a gtx 600 series gpu. If anyone has a idea of how to do this let me know.
as a pro feature, you can render to a Texture… which you then can put on a button