ADOBE AFTER EFFECTS: Forum Expressions Tutorials Creative Cloud

Animate Dots to Appear like Rain Drops

COW Forums : Adobe After Effects

FAQ   •   VIEW ALL   •   ADD A NEW POST   •   PRINT
Respond to this post   •   Return to posts index   •   Read entire thread


Shutian Chan
Animate Dots to Appear like Rain Drops
on Oct 29, 2019 at 2:43:07 am

Hi,

I'm pretty new to expressions on after effects.

I would like to animate dots to appear like raindrops. I tried following this:
https://www.schoolofmotion.com/blog/random-expression-after-effects

I've got over 500 layers of dots on individual layers created in illustrator and imported to After Effects as a composition.
Created an adjustment layer called 'Control' with slider controls:
- Change Seed
- Minimum Start
- Maximum Start

With each layer, i added a

- Frame Delay Slider with
seed = thisComp.layer("Control").effect("Change Seed")("Slider");
minStart = thisComp.layer("Control").effect("Minimum Start")("Slider");
maxStart = thisComp.layer("Control").effect("Maximum Start")("Slider");
seedRandom(index+seed,true);
randFrames=random(minStart,maxStart);

- Scale Expression with:
frameDelay = effect("Frame Delay")("Slider");
valueAtTime(time + framesToTime(frameDelay));

what I don't understand is the keyframes within each layer for scale and opacity:
13849_screenshotreduce.jpg.zip

I'm I doing this correctly to achieve a rain like dot animation? Any help is much appreciated.

Thanks!


Posts IndexRead Thread 


Current Message Thread:





© 2020 CreativeCOW.net All Rights Reserved
[TOP]