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View Full Version : 3D LIght Source - After Effects



sladen
10-22-2012, 03:36 PM
Hey guys, could someone please tell me how to simulate a 3D light source so that an object moving in front of it appears to affect the flare in the lens?

tom_wise
10-23-2012, 05:37 AM
Hey guys, could someone please tell me how to simulate a 3D light source so that an object moving in front of it appears to affect the flare in the lens? Here is an example of what I'm talking about: http://www.youtube.com/watch?v=fwBZzN5N1vw


If you're talking about a scene such as the one you linked AND it is all in one take; as opposed to a green screen and BG separate, then All I can think of is rotoscoping the BG out of the scene and setting that scene as a duplicate layer, but 2D so the light doesn't effect him. Or could be you could just duplicate the scene, making one 3D for the light and the other 2D for no light, and then garbage mat, fade in /out/in at the concerned juncture.

sladen
10-23-2012, 06:38 AM
Yeah I should have elaborated that the BG is separate via green screen and the light source is not organic to the scene either. So I'm guessing the light source is 3D?

sladen
10-23-2012, 10:00 AM
figured it out, tutorial here: https://www.videocopilot.net/products/opticalflares/features/layer_occlusion/