Join Chris Meyer for an in-depth discussion in this video Defining the first base frame, part of After Effects and mocha AE: Screen Replacement.
…I've chosen this frame as a good base frame for my Roto Brush work.…What that means is, is I'm going to teach Roto Brush, the best…I can, what pixels I want to keep, the fingers in the hand.…And what pixels I want to get rid of, the screen,…and then use that information to propagate earlier and later in time.…That way I only need to make corrections…on the most propagated frames, rather than redefining…everything from scratch on every single frame.…
To do that I'm going to zoom in so I can see this in…greater detail, and again Roto Brush work must be done inside the layer panel.…And I'm going to select the Roto Brush tool.…That's the first one underneath this icon in the Tool panel.…When you do that you'll get an icon on the screen.…It's actually a brush that's either green, for adding to the foreground,…pixels to keep.…Or if you hold Option on Mac, Alt on Windows, it turns red to help…you define the background, pixels you want to…get rid of when it should be transparent.…
What you need to do is start out by generally dragging through colors…
This course was created and produced by Chris and Trish Meyer. We're honored to host this content in our library.
- Tracking in mocha AE
- Corner pinning in After Effects
- Rotoscoping with Roto Brush and Refine Edge
- Matching color and depth of field
- Reversible stabilization with Warp Stabilizer VFX