I am trying to make a simple app where you can "paint" active objects into a frame and then save the flattened image of the actives to a new active object. I want to be able to manipulate the result as a new active, so I don't want to simply store a ton of positional data for each painted active. I also want to use this on iOS.
Can anyone tell me of a way to approach this? I feel like the Surface object is the right extension, but I fear it isn't iOS compatible.