-
sequential turn layer on
I need help writing an expression that will turn on (or off) a layer in sequence starting from the top of the layer stack in a comp. So, say I have 50 layers, I would like to put the expression in the opacity field which will cause the layer 1 to turn off (after a number of frames determined by variable X) which will then make the next layer visible and then that layer turns of and so on.
It will make it seem as if the layers are turning on one after another in sequence, the time being determined by the variable X.Help will be very much appreciated.
Thanks. -
1 Reply
-
This example should turn the layers on and off in sequence with a 15-frame duration for each layer:
onFrames = 15;
idx = Math.floor(timeToFrames(time – inPoint)/onFrames)+1;
if (idx == index) 100 else 0Dan
Reply to this Discussion! Login or Sign Up