So I'm trying to use the Directional Blur effect in Premiere, but it seems to have an invisible timer. Is that so? I apply it to my clip, keyframe where I want the blur, set the parameters, and watch the clip. Sure enough the blur just stops after a few frames, well short of my intended key framing. I did a walk around of a subject and speed ramped as I walked behind them. Adding some blur to the sped up footage would look much nicer, but the blur just stops mid movement.
So is there a time limit on Directional Blur? I tried applying a second layer of Blur effect and keyframing it after the first one, but that didn't make any difference. It was like the first one was overriding.
I think I figured it out. I nested my clip as a sequence and had to fly blindly to figure out where my speed ramp started and stopped. Applying my keyframing and blur, then it worked.
Why wouldn't the blue effect just work on a clip instead of a nested sequence?
Keyframes are thrown off when the clip speed is changed. Nesting solves that problem.