How do I animate a border forming around video

[Mike Clasby]

How do you want it to animate, around like a stroke, grow from the edge out all-around at once, other?

[Twiztedklown316]

Basically I want to it to start at the top left corner, and gradually appear both down and right at the same time, then do the same thing once both of those borders have formed and have the final two borders meet at the bottom right hand corner of the screen.

If that makes any sense.

If we all went and edited our pasts, we would all be living in very boring films.

[Mike Clasby]

OK, there are lots of ways to make a border (a search will reveal mucho) but here’s how I’d do it since it adds the border to the outside of the layer and will conform to the shape of the layer.

Duplicate the layer.

Image Control>Grow Bound, make it 50 or so, what ever is bigger than you’ll ever need.

Effect>Perspective>Radial Shadow
Shadow Color: Choose your color
Opacity: 100%
Light Source: Center it on the layer, if you plan to use this a lot (make a preset!) add this expression to the Light Source (Alt Click the Light Source Stop Watch and Paste in the expression below). This just centers the Light source on the layer:

[width/2,height/2]

Projection Distance: Controls the Thickness of the border
Softness: 0 for a hard edge
You can check the Shadow Only box if you want.

Now for the Wipe:
Transition>Radial Wipe
Transition Complete: 0 then animate to 100 over time
Start Angle: 135 degrees
Wipe: Both (from the drop down)

Like I said if you plan to use this a lot, select all three effects, then

Animation>Save Animation Preset, then name it something like “My Border Reveal” or “the yikesmikes special” (kidding here), then SAVE.
So if you get any new layer/logo that needs a border, Duplicate it, then Animation>Apply Animation preset (Or Recent Presets) and choose your preset. Done.

Enjoy.

[Mike Clasby]

Yikes!

Radial Wipe should be:

Transition Complete: start at 100% and animate to 0% over time.