If I want to apply, say motion blur to a geometric object that's moving inside the [gemwin], is there some way to use the object's outlet? In the help patch of each geometric object, it says that the outlet outputs the gemlist as many (all?) other gem objects. But other objects, e.g. [pix_video], [pix_image] etc., can send their gemlist to a geometric object and others, like [pix_motionblur], and you can get the desired effect. How would you go about applying some effects to the movement of a primitive? Is recursion what I'm looking for?