Apply “posterizeTime()” on only one part of an expression

[Kalleheikki Kannisto]

Any value can be “posterized” using the Math.floor expression. The exact method depends on what you’re doing. Most likely the valueAtTime() is involved. For example, to posterize something to happen 5 times per second in a 25 fps comp, this works for many properties:

valueAtTime(Math.floor(time*5)/5)

Kalleheikki Kannisto
Senior Graphic Designer

[Remi Monedi]

Thank you Kalleheikki! I did find this trick too but the “posterizeTime()” expression is just simpler this is why I was wondering if it was possible to apply it only on one part of an expression?

[Alex Printz]

yeah, all you have to do is declare the posterizeTime between the different calculations, and then recombine. This will wiggle the X position at comp framerate, and this will wiggle the Y at 1 per second:

X = wiggle(2,50);
posterizeTime(1);
Y = wiggle(2,50);
[X[0],Y[1]]

Alex Printz
Mograph Designer

[Remi Monedi]

Thank you Alex but what if I want to apply a different “posterizeTime()” to each wiggle (like in your example)?
This won’t work obviously, the first “posterizeTime()” influencing the second :

posterizeTime(3);
X = wiggle(3,500);
posterizeTime(30);
Y = wiggle(3,500);
[X[0],Y[1]]

[Dan Ebberts]

You could do something like this:

p = 1/3;
t = p*Math.floor(time/p);
x = wiggle(3,500,1,0.5,t)[0];
p = 1/30;
t = p*Math.floor(time/p);
y = wiggle(3,500,1,0.5,t)[1];
[x,y]

Dan

[Remi Monedi]

Thank you Dan, I guess I have my answer :

It’s not possible to apply several “posterizeTime()” to different part of an expression without the first one bypassing the others.

I did find an old answer from you Dan (2012) with more or less the same code you wrote here 😉