Green Screen 101: Keying Paper Animations in CapCut

Green screen export renders your clipping on broadcast green instead of a full-bleed paper background. That gives your editor a flat, saturated colour to key out, leaving the torn paper edges floating over your footage.

Before you export

• Turn on green screen mode in the studio panel.
• Drop the paper texture slider slightly. Heavy grain along a torn edge is the main cause of green fringing.
• Keep distortion under about half. Extreme rotation puts thin paper slivers near the frame edge that key badly.
• Export as video rather than GIF. GIF quantises colour, which muddies the green.

CapCut

Add the clip as an overlay above your main footage. Open Cutout, choose Chroma key, and drag the colour picker onto the green. Raise Intensity until the green disappears, then raise Shadow only far enough to clean the edges. If you push Shadow too far you will start eating the paper texture.

Premiere Pro

Apply Ultra Key to the overlay track. Pick the green with the eyedropper and set Setting to Aggressive. Under Matte Cleanup, keep Choke at one or two. Anything higher will round off the torn edges, which is the detail that makes the effect look real.

DaVinci Resolve

Use a 3D Keyer node on the Color page. Draw a short stroke across the green rather than clicking a single point, then use Clean Black and Clean White sparingly. Add a slight blur on the alpha only if you see a hard stair-step along the tears.

“Every keying problem with paper is an edge problem. Fix the edge in the export settings, not in the editor.”

If you are still seeing a green rim, re-export with grain lowered and distortion reduced. It takes fifteen seconds and it beats fighting a spill suppressor.