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So I am working for a fashion brand asking for a 3D ribbon effect that twists through fields of photos and video, going in front of and behind the images. My first thought was 3D stroke, but it didn't work, as I need it to have some shading from the comp lights. There's also the issue of painfully retiming the stroke moves using percentages of completion, and not actually having full "3D" control. (I can't draw a path that goes in all dimensions, just postcard transforms on the 2D mask paths, AFAIK.) I may however use it for some simple bending and repeating elements.
My next idea is to use a particular 2.0 layer with 0 emit velocity, and having the emitter tied to a null that I can then fully animate through 3D space. So far this is working pretty well. Comp lights work, it is easy to control. However I am having some of the classic issues with Particular where it crosses other 3D objects in the scene and doesn't respect the stacking order. The ribbon is either completely in front of or completely behind the images.
- now I could add 1 or 2 "obscuration layers" but it is not reasonable to do this for over a hundred layers individually - Would I need to precomp the entire layout, collapse transformations, and THEN use the precomp as an obscuring layer? Is this even possible? It would be a difficult way to work, I'd need to have every element layed out in 3D first. Doable, but I'd prefer to create both at once.
- is there another solution I'm not thinking of? A good script for Particular maybe? Thanks, -TG _____________________________ VFX & Motion Graphic Artist
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