Expression for stroke following a motion path?

[Julie Mullins]

Hi!

I’m doing something similar, but I want the write-on effect not to start immediately. Here’s a screen shot showing the diagonal line where the pencil comes onto the screen, but I want it to only start writing on where it is going in a circle. If I shorten the Write On adjustment layer, the diagonal line still pops on once the playhead gets to that layer. Is there an easy way to fix this?

[Jason Jantzen]

It’s going to follow the position of whatever it’s linked to. I’m sure someone smarter could think of a way to delay that, but if I wanted to do what you’re talking about, I’d animate the pencil, then copy the position keyframes to the Write-On effect brush position. You’ll probably have to line it up with the pencil tip or where you want it, then offset the keyframes enough so that it starts after the pencil. You may have to delete some of the keyframes so that the Write-On effect isn’t drawing them where you don’t want them.

That’s a very manual way around it. I recently bought Speed Lines on AEscripts which does what you want here with so much more control.

Jason Jantzen
vimeo.com/jasonj

[Victor Carlier]

Hi,

you dont have to shorten your adjustment layer but just move it so the inpoint is later.

Cheers