Rotoscoping

In the visual effects industry, rotoscoping is the technique of manually creating a matte for an element on a live-action plate so it may be composited over another background.

Digital rotoscoping is the process of creating a mask or matte to isolate part of an image.

And is a very important part of the visual effects process.

Roto artists work on the areas of live action frames where computer-generated (CG) images or other live-action images will overlap or interact with the live image.

Multiply the crowed

Software’s : A.E, Mocha, Nuke, Fusion, SilhouetteFX  etc.,

Some people prefer dedicated specialist software like Silhouette or Mocha when they have tricky footages / raw files to generate matte.

Reference movies

1. Alfred Hitchcock’s The Birds (1963)

needed scores of birds to attack a small town. It wasn’t possible to control the birds of course, or even key them against a background, and the nature of the shots meant the birds and a luma key against a sky wasn’t possible (some were white birds), especially as many were originally shot against cliffs, beach, or sea. So, tracing the birds was the only option. Rotoscoping the 500 frames in one shot of the attack took two artists 3 months to complete. Of course these are pre-digital film examples, but even today roto’ing big shots in feature films can take weeks.

2. Return of the Jedi (1983)