Chapter 3. Selections: The Key to Compositing


I’m fixing a hole where the rain gets in And stops my mind from wandering Where it will go.

–John Lennon and Paul McCartney

A particle physicist works with atoms, bakers and bankers each work with their own types of dough, and compositors work with selections—many different types of selections, potentially thousands, each derived uniquely.

If compositing were simply a question of taking pristine, perfect foreground source A and overlaying it onto perfectly matching background plate B, there would be no compositor in the effects process; an editor could accomplish the job before lunchtime.

Instead, ...

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