You shot footage with a moving camera and you’ve added bullet trails with Particular, and you want them to integrate into the scene?
Yes, use Ae’s 3D Camera Tracker [link]. This will create a camera in Ae that corresponds to the real-world camera that shot the scene.
Now, because Particular reacts to the comp camera, your bullet trails will be seem to be affected on-screen by the original camera. You may need to move the Particular system in its 3D space (either by moving the emitters or by using Particular’s world transform) to position it correctly in the shot.
Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
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