Is it possible to make an emitter be loopable? I mean, let's suppose I'm using a smoke emitter and my movie has 450 frames. At frame 1 the smoke starts at one shape/form and at 450 it finishes in different form/shape. I'd like that the emitter at frame 450 finished similar to the frame 1 to seems loopable when the movie starts over. So, is it possible? How to make an emitter loopable and or a movie loopable with all emitters respecting the loop?