Re: AE Expression to change a single value every X seconds.

Try setting the glow to 1 and then add this expression:

period = 2
maxVal = 3;
ramp = .25;

t = (time-inPoint)%period
if (t < ramp)
ease(t,0,ramp,value,maxVal)
else
ease(t,ramp,2*ramp,maxVal,value)


Dan