So, I pretty much want to make this exact app, just in AR and with better brushes: https://play.google.com/store/apps/details?id=com.TNInteractive.GraffitiPaint&hl=en
One way to do it that I came up with would be to open a 2D sketch in which you draw in an interactive canvas/plane inside an other 3D sketch, but I have no idea how to do it.
Maybe there’s a way to put a 2D processing sketch into some other AR program that would let the player interact with it on a virtual screen, but I haven’t yet found anything like this so far.
I just want to find a way to paint like in 2D on a plane in 3D, but idk how. Please help me lol.