opacity on off expression

[gdg59535]

sorry, i am a beginner  ...

i wanted to know if  i can make the opacity of a layer going on and off  (say 10 frames on and 10 frames off) with an expression  ?

[Mylenium]

Sure. Could be as simple as

Math.floor(time%10)*100;

which creates an alternating on/off animation every ten frames when applied to the opacity.

Mylenium

[Dan Ebberts]

This should work:

Math.floor(timeToFrames(time)/10)%2 ? 0 : 100