There is a very well known technique in the 2,5D world called alpha crush. For example you can do flat metaball like animations with it. I found a way to do the same in C4D. Basically it’s misusing the cel renderer in conjunction with visible Lights, which behave differently then geometry when rendered with the cel renderer. It’s a technique which invites to nice experiments, so play along :-) And if you have something to show, don’t hesitate to drop a link to the video in the comments. (no audio)