Flickering Transitions – Adobe After Effects tutorial



Want to make things flicker in after effects… well there are many way to make that happen. Keyframes, effects, and expressions. This is less of a tutorial and more of a lesson on all the ways you can do the same damn thing in this program. Really there’s no wrong way… unless you’re talking about doing something completely wrong. Actually there is for sure wrong ways to do things.

Anyway, here is the expression we use in here, it’s a doosey… and the greater than symbols might be messed up. YT does not like typing code into their descriptions so just maybe retype those 🙁

amp = 50; //MUST BE 50! Governs the height of the wave
freq = 10; //waves per second… kind of.
t=time-marker.nearestKey(time).time; // time based on the marker

x=amp*Math.cos(freq*t*t)+50; // makes the wave

if (time>thisLayer.marker.key(1).time) {100} else {
if (x>50) 100 else 0} // turn the effect on at the marker, and limit the expression

I hope that helps. But if it’s not clear, ask me questions in the comments zone and I’ll try to answer them.

If you want to see how this goes down in Premiere, check this out: https://youtu.be/JQj1ZCfw08E

Download this project file:
https://gum.co/qEqcg

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