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Dictionary by pitch.dog
Compositing, keying & paint · Working

Alpha channel

Also called: alpha

ELI5

Image data describing transparency or coverage for compositing.

Used in conversation

“The alpha channel needs a clear reference before the team starts final work.”

Pitch context

You may encounter “Alpha channel” in vfx, virtual production & animation conversations or materials.

Why it matters: Explains image creation that extends beyond straightforward live-action photography.

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Sources & evidence · 6

Supporting source families. This entry is an editorial synthesis rather than a quotation from one canonical glossary.