Masking is a post-production technique that allows editors to show or hide specific parts of a video frame by defining a custom shape or area. It's often used to layer effects or isolate subjects. Editors define shapes (masks) to control where effects or footage are applied.
It enables complex visual effects, clean transitions, removing unwanted objects, and targeted corrections, like blurring a face or replacing a sky, without affecting the rest of the footage. It’s foundational in VFX, compositing, and motion graphics.
Use masks to create selective edits, isolate motion, apply transitions, or enhance compositing. Most NLEs and VFX tools include masking with adjustable shapes and keyframing. Clean, precise masks take patience, but the payoff is seamless visuals.
Feather edges – Soften mask boundaries to create natural blends and avoid harsh cutouts.
Track movement – Use motion tracking for masks when isolating moving subjects.
Keep masks organized – Label and manage layers clearly in complex projects with multiple masks.