Mailing List AE-List@media-motion.tv ? Message #45755
From: Dan Ebberts <debberts@comcast.net>
Subject: Re: [AE] Color Control expression link to Colorama?
Date: Fri, 14 Sep 2012 19:09:39 -0700
To: After Effects Mail List <AE-List@media-motion.tv>
The Color Control is expecting a 4-value array of numbers between 0 and 1 to specify the red,green,blue, and alpha values (example: [1,1,0,1] gives you bright yellow).
 
I think to get what you’re after, you’d have to apply the Colorama effect to a layer and use sampleImage() in your Color Control expression to pick up the color.
 
Dan
 
 
From: Red Truck
Sent: Friday, September 14, 2012 6:24 PM
Subject: [AE] Color Control expression link to Colorama?
 

Would appreciate some guidance here as I attempt to learn more about expressions.

 

Can I link the Color Control expression to the Colorama effect set up on a null layer in AE (CS5.5)?  

 

I have successfully setup a single Color Control expression effect on a null layer to change the stroke colors of 5 animated shape layers on 5 separate layers over video clips in a 1:30 sec sequence.

 

I can manually key frame the single Color Control on the null to change the colors of all the shape layers over time in the sequence.

 

However instead, I would like to link the Color Control to cycle through more rapid color shifts on the shape layers using the Colorama effect.

 

I have placed a Colorama effect under the Color Controller effect in the same null layer.

I have pickwip the Color Control to Colorama keyframed input Phase Shift (0x+0.0 - 0x+350 over time).

 

This creates the following expression:

temp = effect(“Colorama”)(“Phase Shift”); [temp, temp, temp, temp]

 

Haven’t come across ‘temp’ in the expression list:

http://help.adobe.com/en_US/AfterEffects/9.0/WS3878526689cb91655866c1103906c6dea-79f8a.html

 

Tried placing values in the expression as this example

temp = effect(“Colorama”)(“Phase Shift”) [0, 350, 0, 350] results in a green color in the Color Control and the shapes but does not change the color over time.

 

So what is the expression telling me besides messing up this step?

 

A link to a tutorial or alternate on animating the Color Control would be appreciated.

 

Cheers,

 

Robert Alsop

Twitter: @RedTruckPro

redtruckproductions@rogers.com

 

  

 
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