And if your subject has some color bleed around their edges from the previous background, you can select Decontaminate Edge Colors, and After Effects will attempt to remove this color. If your subject is in motion, you may want to turn on Use Motion Blur. Don’t adjust these settings from default when you’re doing the initial brushing. Adjusting these settings can get rid of any harsh edges, and it’s much easier to see them if your subject is already separated from the background. This can help clean up the subject and make the cutout smoother. In the Roto Brush settings, you can adjust the feather, contrast, shift edge, and reduce chatter. This will save your roto and you’ll be able to use the subject you’ve cut out, on any other background!īefore doing that, however, you should fine-tune your roto. If it all looks good, you can click the Freeze button under the program monitor. Then you can just use the brushes to correct the mistake. Doing it this way will let you notice any errors in the roto process. Roto Brush will analyze and apply to each frame as you do this. Click on the first frame in your timeline and advance the video frame-by-frame using the arrow keys while holding Ctrl. Once you’re happy with your cutout, we can start the Roto process. But it’s very important that you spend the time to make this mask as accurate as possible, so that the program can get the best tracking data for past and future frames. In traditional rotoscoping, you need to spend a lot of time getting precise cuts frame-by-frame, but with the Roto Brush, you only need to do that once. Reducing the brush size will help you refine the small details around your subject. To change the brush size, hold Ctrl and left-click and move the mouse up or down. If it does start to select something in the background, you can hold Alt (Option on Mac) while dragging over that area, to select the background.
Just make sure not to brush outside of the bounds of your subject, to get the most accurate mask. You will see an outline as its selected, and each subsequent stroke will add more to the mask. Paint with brush strokes over your foreground. Double-click the video layer in your timeline and select the Roto Brush tool. If you hover over it, you will see that it says to drag over foreground, and Alt+drag over background. Once you open After Effects, you’ll see the Roto Brush tool in the same place as the original version. Simply go to the Beta Apps tab and download the After Effects beta version. As long as you’re a subscriber, you should have this option. First of all, if you’re trying to use Roto Brush 2 before its official release, you will need to download the After Effects beta version from Adobe Creative Cloud.
0 kommentar(er)
