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Supported formats, Movies, Still images – Grass Valley T2 Classic iDDR User Manual

Page 56: What is fill and key data

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56

T2 Users Manual –SP3/SP4–

October 17, 2011

Chapter 5 T2 Alpha Option

Supported formats

Movies:

• AVI format (Grass Valley HQ/uncompressed)

• QuickTime format (ProRes4444/Animation/uncompressed)

Still images:

• TARGA

What is Fill and Key data?

Fill data is a base image on which transparency information is overlaid, and Key data

is an image that will be used as transparency information. Key data acts as a mask on

Fill data.

A still image containing transparency information has a data area for transparency

information called the alpha channel in addition to the data area for color information

that is represented with RGB color. Your T2 will output color information as Fill data

and the alpha channel as Key data.

Fill

Key

Fill

Key