Expression linking vertical scale to Sound Keys output

Expression linking vertical scale to Sound Keys output

by Chad Shack

on Jul 18, 2013 at 4:16:30 pm

I have a shape layer that I want to parent it's vertical scale only (leaving the horizontal unaffected) to a Red Giant Sound Keys output.

The resulting affect would be the shape layers scaling up and down to the audio, while it's horizontal wasn't changed.

In the attached image you can see I have generated the Sound Key output keyframes. Unchecked the constrain proportions for the scale property and parented that to the Sound Keys output. I just need to know what I need to add to the existing expression to get the result I am after.

[IMG]http://i40.tinypic.com/293g7xx.png[/IMG]

Any and all help is very appreciated.

Re: Expression linking vertical scale to Sound Keys output

by Erik Waluska

on Jul 18, 2013 at 5:24:41 pm

Just replace the first "temp" in second line with "value[0]", like this:

[value[0], temp]

The "value[0]" refers to the first parameter in the array. You would think it would be value[1] but the array parameters are counted starting with 0.

HTH

Erik Waluska
EAWmedia

Re: Expression linking vertical scale to Sound Keys output

by Chad Shack

on Jul 18, 2013 at 6:18:11 pm

Thank you both very much.

Re: Expression linking vertical scale to Sound Keys output

by John Cuevas

on Jul 18, 2013 at 5:31:12 pm

change the array to be [transform.scale[0],temp]

ETA: or do what Erik says...

Johnny Cuevas, Editor
Thinkck.com

"I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work."
---THOMAS EDISON on inventing the light bulb.