Clean up keys with masks After Effects CC


show more Cleaning up keys with masks provides you with in-depth training on Video. Taught by Ian Robinson as part of the After Effects CC Essential Training show less
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Cleaning up keys with masks

Now, one of the simplest ways to help isolate an object from its background is to actually just use a mask. Now, if we look at our project right here, you can see that I've got my green screen keyed really well. But if you look to the right side of the image, you can see the edge of that green screen itself is showing in the frame. So, what we need to do is just create a simple garbage mask for our scene. Now, this is going to be a relatively easy process because our shot is relatively static. If the person were moving around the scene, we would need to actually add key frames to the mask and have them follow the movement.

But let's start just by adding a garbage mask. I'm going to select layer one, and just grab my Rectangle tool. And just click and draw a mask, starting from off the edge of your Comp panel down to the lower right corner. And now, I have gotten rid of that extra area. We can end right there, but I want to show you another common practice because a lot of times, you don'...

Cleaning up keys with masks
Video duration: 3m 41s 14h 52m Appropriate for all Updated Nov 03, 2014

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Cleaning up keys with masks provides you with in-depth training on Video. Taught by Ian Robinson as part of the After Effects CC Essential Training

Subject:
Video
Software:
After Effects
Author:
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