ok, lens flares are very pretty, but they look ratehr bad when they dotn track with the actual frame in motion..
aside from tedious KF'ing, how bout an easy way out by locking the Lens flare point to a pixel grid on the frame.. then as those colours/pixels within those frames move, that lock point tracks along with that series (or range) of colours..
this would be the easiest way to make this work without teh need for adaptive or predictive algorythms.. all it needs to do is lock onto those pixels and it automatically moves as those pixels move...
Another one. is the Auto Correction (mike crash adaptation of VDub filter) It works a treat, BUT it does not have a locking switch, in turn it fluctuates at every change of luminance or colour which is not good
im trying to think of afew more but im tired now