Scrolling text

[Curious Turtle]

This little expression should work for you.

First, add an Effect > Expression Controls > Slider Control to your text and rename it “Text speed”.
Then paste this expression to the Position of your text (Alt-click the position stopwatch to get the expression window open):

fps = 1/thisComp.frameDuration; // Comp’s frame rate
rollSpeed = Math.floor(effect(“Text speed”)(“Slider”)); // Determine roll speed as a whole number
[transform.position[0], (time*rollSpeed)*-fps+transform.position[1]] //Leave X up to user and scroll Y from user’s start point

Your text will now now scroll at a speed set with your slider control.

Let me know if it works for you (and anyone else can chime in if they want to improve it! :o) )

Cheers,
Ben

Curious Turtle Professional Video
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http://www.curiousturtle.com

[Kevin Camp]

i created a similar expression and added an option to advance it in even numbered pixels to make it field friendly. it will create the move based on length of the credit list and duration of the comp… so if the credit list changes, the move will be adjusted. likewise for comp duration.

i saved it as a preset that can be downloaded at http://www.mercuryjones.com/aepresets.html. there are instructions, if needed.

Kevin Camp
Designer – KCPQ, KMYQ & KRCW

[Jason Burris]

Ben, how do I rename an effect?

I Dream of Weaver

[Curious Turtle]

Just as you would do a layer. Click on it in the Effects controls and hit Enter. It should highlight so you can rename it.

All the best with your project

Ben

Curious Turtle Professional Video
Training | Editing |Support

http://www.curiousturtle.com