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Introduction
This is the final result we'll create, a large title that appears to be behind the interview subject, even though the video was recorded without a green screen. Let's get started. Hello, welcome back to the complete Adobe After Effects series from Cerdas Inovasi Digital. Not all videos are recorded with a green screen. To separate a person from a regular background, After Effects has the Roto Brush tool that uses edge detection to follow the shape of an object frame by frame. Create a composition from the interview footage and adjust the work area for the first 3 seconds.
Step 1: Prepare the layer
Duplicate the footage with Ctrl D and name it 'Interview Subject'. This top layer is what we'll cut out, while the bottom footage remains intact as the background.
Step 2: Object sweep
Double-click the 'Interview Subject' layer to open the Layer panel, then select the Roto Brush tool. Brush the green brush from the head down to the body, then across the shoulders and both arms. The Roto Brush guesses the shape of the person and marks it with a purple line.
Step 3: Background sweep
Areas of the wall or window that are also selected are corrected by holding Alt while brushing, so the brush changes to red. Brush over the left wall, window, and curtain. The purple line now follows the edges of the head, shoulders, and arms neatly.
Step 4: Propagation
Press space or page down to move forward. The Roto Brush propagates the segmentation to each subsequent frame, following the movement of the head and hands. If the green indicator under the Layer panel marks the frames that have been processed.
Step 5: Text behind the person
Return to the composition. Turn off the bottom footage and turn on the checkerboard background, leaving only the interview subject. Turn on the bottom footage again, create a large yellow inspirational text, then drag the layer between the interview subject and the original footage.
Step 6: Preview
Preview The inspirational title appears to be behind the interview subject, and it follows along when he moves his head. This effect is popular for profile videos, ads, and social media content.
Done!
Done. We've opened the Layer panel, used the Roto Brush with green and red brushing Propagate segmentation, check alpha, and insert text behind the person. In the next episode, we'll refine the edges with Refined Edge. Need a promotional video, logo animation, motion graphics for social media, or visual effects for short films? Cerdas Inovasi Digital provides motion graphics and visual effects services, as well as opens After Effects courses from beginner to advanced levels. Want to master the entire series? 104 episodes from the interface to final projects? All episodes, complete with PDF step-by-step guides, source footage, and project scripts, are available for premium tutorial subscribers. Subscribe starting at Rp69.000 per month, save 28% with the 12-month package, or pay once Rp999.000 for lifetime access. Want a single class only? Buy single classes with lifetime access. Subscribe now at the premium page cerdasinovasidigital.com Contact our WhatsApp, or visit cerdasinovasidigital.com Thank you for watching, see you in the next episode. Thank you for watching
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Cerdas Inovasi Digital Team
Software developers, BIM & 3D engineers, and AI practitioners
52 video classes1,276 episodes
We build software, BIM models, games and AI automations for clients every day, and turn that hands-on work into step-by-step classes: every step is shown on screen and comes with a PDF guide you can keep.
