How to create a nice effect with just a sinus
by Vincent Le Moigne on July 01, 2016.
Smode version: Smode Synth / Studio / Station
Start a new comp (Ctrl+N)
Select the main composition on the top of the tree and uncheck "Alpha Layer" to have a black background, it won't change anything, it is just a matter of aesthetics.
Create a particle system with 3D Layers>Points>Particles.
Set the particles system like a boss
Just do as on the pictures ... trust me....
Add a Opacity modifier preset named "Flicker" over the particles Right Click->Modifiers->Attributes->Opacity->Flicker
Little Explanation and conclusion
Now you can disactivate/activate the particles systems to see a nice effect
As you may also see if you take the time to expand the opacity modifier is that this preset is set with a Age vertex mask and that particles opacity will vary between 0% and 100% over it's lifetime following a sinus curve repeated 3 times. Good job old chap, you made it !