I've got a bunch (50+) of primitives as rigid bodies, getting dragged around by a vortex field and newton field. So they are swarming around like flies kind of. I want to bake their movement as keyframes and then constrain models to them (like say, paper airplanes) but I need to make sure they are aiming "forward" so to speak. How to best do this? Seems like it should be really easy. I know it's easy with motion paths. But what about with baked position keyframes? The rotations created by the fields are kind of arbitrarily tumbling about.
One thing I thought of is to duplicate everything and offset by a couple frames, and then "aim constraint" each primitive to its copy. But this seems really clunky. Any ideas?