FCPX Custom Video Shapes

FoxRaysing

macrumors newbie
Original poster
Oct 24, 2009
5
0
Hey there,

I'm looking to learn how to put video on top of a custom shape (either done directly in fcpx or a shape i exported from photoshop).

For example, if I have a star, I want video to play only inside the star and have the rest of the screen to have other video playing.

I tried looking for tutorials but have been unsuccessful thus far. Any help would be great!
 

floh

macrumors 6502
Nov 28, 2011
460
1
Stuttgart, Germany
For example, if I have a star, I want video to play only inside the star and have the rest of the screen to have other video playing.
Easiest way: Make your shape white on black, put it on top of your footage, and in the Inspector change the "Blend mode" from "Normal" to "Stencil Luma".

This will, however, affect all video clips below your shape. If you want to have something else playing "in the back", you will have to create a "Compound clip" from the shape and the video you want to cut out.

Tell me if this was going too fast... but that's a quick and easy way I can think of.
 

Unami

macrumors 6502a
Jul 27, 2010
706
370
Austria
what you're trying to do is called an "alpha matte"

for your star example do the following:

-create a black star on white bg (or white star on black bg) in photoshop.
-place the image of the star above the video you want in star shape
-select the clip with the star image, go to the inspector, scroll down to compositing and select "blend mode - silhouette luma" (if you made a black star on white bg - for the other way round select "stencil luma")
-create a compound clip containing the star image and the video that's in the star
-place it over the video you want to have outside the star

it's all about blend modes (and compound clips). instead of a b&w matte (btw. greys are semi-transparent) you could also create a transparent image in photoshop, save it with an alpha channel (e.g. as .png ) and then use stencil/silhouette alpha as blend modes). this also works with videos as mattes.

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damn, you beat me by 1 minute, floh. gute nacht!