-
Combining expressions
I have 3 “signs” on top of each other. They all swing down together and swing together but almost independently.
I am currently using this expression:
veloc = 7;
amplitude = 80;
decay = .7;
startT = thisLayer.startTime;amplitude*Math.cos(veloc*(time-startT))/Math.exp(decay*time)
to make a sign fall down form X space and swing, then stop… However, I want it to continue to sway slowly afterwards without stopping.
I found this expression (courtesy of https://www.motionscript.com/expressions-lab-ae65/swinging-light.html)
amplitude = 7;
period = 3; //secondsamplitude*Math.sin(time*Math.PI*2/period)….
And it does exactly what I need it to do except the falling down part. I added this to the end of the first code and it swayed after it swung down but it froze the top layer.
How do I combine both so it falls down, decay, and then slowly sway for the amount of time I choose (i.e. the duration of the composition)?
Thanks!
veloc = 7;
amplitude = 80;
decay = .7;
startT = thisLayer.startTime;amplitude*Math.cos(veloc*(time-startT))/Math.exp(decay*time)
amplitude = 7;
period = 3; //secondsamplitude*Math.sin(time*Math.PI*2/period)
-
2 Replies
-
The easiest might be to just blend the two expressions over a fixed period (I chose from 4 to 5 seconds for this example):
veloc = 7;
amplitude = 80;
decay = .7;
startT = thisLayer.startTime;
v1 = amplitude*Math.cos(veloc*(time-startT))/Math.exp(decay*time);amplitude = 7;
period = 3; //seconds
v2 = amplitude*Math.sin(time*Math.PI*2/period);startEase = 4;
endEase = 5;
ease(time,startEase,endEase,v1,v2)Dan
-
Thank you!!
That worked perfectly!!
Reply to this Discussion! Login or Sign Up