[Lord Scales]

Try:

A = thisComp.layer(“Audio Amplitude”).effect(“Both Channels”)(“Slider”); //the audio layer
minScale = [60, 60]; //minimum scale
maxScale = [80, 80]; //maximum scale
linear (A, 0, 100, minScale, maxScale) //as A goes from 0 to 100, Scale value goes from minScale to maxScale in a linear interpolation

Change the values as necessary. I tested here and worked fine.

[Lord Scales]

Thanks! That is perfect!

[Lord Scales]

[WillB_82] “-the objects in the scene to start moving at the start (0sec) of the comp at a random speed in either -x or +x.

-the speed to only be random up to a maximum value (so they move nice and slowly)

-I don’t want them to change direction or speed at all, just move at a constant speed in a constant direction the whole clip (1:20) once they’ve ‘decided’ which way and how fast to go.”

Hehe, I think a simple
w = wiggle (1, 200) //first value is frequency, second value is amplitude
[w[0], value[1]]
won’t help you much.

[Lord Scales]

[WillB_82] “-the objects in the scene to start moving at the start (0sec) of the comp at a random speed in either -x or +x.

-the speed to only be random up to a maximum value (so they move nice and slowly)

-I don’t want them to change direction or speed at all, just move at a constant speed in a constant direction the whole clip (1:20) once they’ve ‘decided’ which way and how fast to go.”

Hehe, I think a simple
w = wiggle (1, 200) //first value is frequency, second value is amplitude
[w[0], value[1]]
won’t help you much.

[Lord Scales]

Maybe this can help (for a 2D layer):

w = wiggle (1, 200) //first value is frequency, second value is amplitude
[w[0], value[1]]

But if you read this: https://www.motionscript.com/mastering-expressions/random-1.html you are done so.
I’d like to help more, but now I am without time…

[Lord Scales]

I liked this think of key(index) and numKeys.

Thanks!

[Lord Scales]

I would not detect the keyframes, but the speed. If the speed is higher than 0, or there is an expression or keyframes. Like this:

thisComp.layer (“Layer 1”).position.speed

But supposing you’ve got the floowing:

thisComp.layer (index – 1).position

You can just do this:

value + thisComp.layer (index – 1).position

VALUE is the original value with no expression. So you can play around.

[Lord Scales]

Very nice Dan!
Now it is really easier to do all!

[Lord Scales]

Create 2 nulls (I’ll call one SPoint and the other EPoint). Apply the following to the Starting Point position:

L = thisComp.layer(“SPoint”);
L.toComp (L.anchorPoint);

And just change the first line to L = thisComp.layer(“EPoint”); in the Ending Point and you are done!

[Lord Scales]

Try preview the video hitting 0 in Numpad (RAM Preview)