I think you need to get rid of the transform made to the text layer...

a quick test with a layer that is not at the comp center... draw mask, copy, paste to brush position, and then add this expression, and it should line up

(position-([width,height]/2))+value

On Thu, Jul 17, 2014 at 6:36 AM, Phil Bearman <AE-List@media-motion.tv> wrote:

Hi all,

This has been bugging me for years so I thought I'd ask the group!

When you draw a mask on a text layer, and then copy and paste into position keyframes (eg. in "Write On"), there is always an offset (presumably due to it being a continuously rasterised layer).

Does anybody know if there's a way of calculating that offset, and therefore write a script to translate the position keyframes to line up with the original mask? 

Or does such a script already exist?

(I know you can get around this by pre-composing, but I'd rather not do that).

Any insight much appreciated!

Phil

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