Scale Expression Help

[jcalverley1]

I'm using Sound Keys. I understand how to picwhip the scale parameter of another layer to the output of the SoundKeys layer but I want it to effect only the Z parameter in the scale, not the whole scale adjustment. Please any help would be greatly appreciated! Thanks

[Rick Gerard · Accepted solution]

Define the value for z like this:

z = drag the pickwhip to the Sound Keys parameter you want to use;

Then set up your array to read the current value for x and y:

[value[0], value[1], z]

This is pretty basic expression language. You should spend some time with the expression reference guide if you plan on using expressions.

I hope that you understand that in order for Z scale to have any effect on the layer you must move the Anchor Point in Z. This will make the layer move in Z space.

[Szalam]

The scale (and position and orientation) parameters of 3d layers are arrays of 3 values.

So, think of it as [scale0, scale1, scale2]

You just have to point the z value to it and not the x and y.

Something like [0,0,pickwhippedproperty] +value should do it for you.

Edit: I see Rick and I were typing at the same time. His would work too.