okay, intermediate/advanced GEM tutorial wanted... But for the purpose of discussion: I want the gem window to record the movement of an object, so that if i move (say) a sphere around the window over a period of time, what you see is the trail it has left behind.
I believe buffer will help me here, but there is nothing on [buffer 1( or 2(
Ideally i want the trail to fade out after a period of time, but I believe that would perhaps involve some other type of processing. I humbly request your ideas, please: