Really nice trailer from Knife Show, directed by Mike Benson. This effect is pretty neat and super playful. Here’s what he has to say about creating the effect:
“The effect was created in After Effects. We had the riders hold flashlights with them turned on so they would be easier to “see.” Then we used a modified version of Andrew Kramer’s tutorial (with plugin Trapcode Particular) to create the streak. That was pretty simple, but it became a huge challenge when the camera moved, which meant we had to somehow move the entire generated beam with the camera…”
Have a watch anyway, really nicely done.