Adobe After Effects Forum
AE Advanced Light Painting w/ Red Giant
AE Advanced Light Painting w/ Red Giant
by Trevor Mowry on May 31, 2019 at 6:34:09 pm

I've been attempting to do a light painting effect on some footage of a baton twirler. Unlike a point emitter and doing a streaklet effect with Particular, I want to mimic the effect you see in Pixelstick ads ( ) In this case, the entire shaft of the baton acting as an emitter.
I thought this would be pretty simple using a layer emitter or a box emitter in particular but it has proven to be not so straight forward. I tried doing a box emitter and manually transforming with the baton. Created a beam effect that was tracked to the twirling motion and used that as a layer emitter. Neither has yielded good results. I would need to generate an absurd amount of particles. I also have licenses for Mir, Form, and 3D stroke, although I'm largely unfamiliar with them and don't know how to properly tool them for this effect.

Results so far:
Box Emitter:
Layer Emitter:

Re: AE Advanced Light Painting w/ Red Giant
by Garrett Appleton on Jun 3, 2019 at 12:50:48 pm

You might want to try using Saber from as the base for your animation. You can apply it to a shape mask or use the default two point vectors and apply a lot of force motion blur. Its free and a super helpful tool

Re: AE Advanced Light Painting w/ Red Giant
by Trevor Mowry on Jun 3, 2019 at 4:41:13 pm

Using a combination of the Echo effect and the Saber, plugin, it's looking MUCH better. One thing I can't get quite right is the solid line at the point of origin. I want the entirety of the echo to remain on screen but I don't want that bar. So maybe I can keyframe the decay? Not sure.

Solid Bar:

Echo Settings: