THOMSON GRASS VALLEY KayakDD-1, User Manual

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KayakDD - Digital Production Switcher
2.9.2 Mix
A mix is a transition from one picture to another where the new picture fades in as the
existing picture fades out. During a standard mix transition a superimposition of both
pictures, each at a lower intensity, is visible.
The KayakDD system allows mixing from one background to another and to mix up to
four separate keys on or off over a background. Background and key mixes can be
done separately or simultaneously.
2.9.3 Full Additive Mix
Full Additive Mix (FAM) is a special mix transition that the KayakDD system supports
besides normal crossfade transitions. Picture elements in FAM transitions are
composited differently through the time of the transition.
Figure 7 Normal and FAM Mixes
2.9.4 Wipe
ys, or to both simultaneously. A wipe transition shape can be
selected from a variety of patterns, and these patterns can be adjusted in several ways
(position, aspect ratios, edge attributes, etc.).
Each KayakDD M/E has two separate transition wipe systems, each of which can be
assigned a different wipe pattern and be adjusted independently. These systems can
each use one of the two available complex wipe pattern generators with advanced
capabilities. It is also possible to combine these wipes to create extremely complicated
wipe transition shapes, and generally this is used only by advanced operators. Utility
bus video signals can also be used to generate a custom pattern for a wipe transition
or other purposes.
FAM transitions first fade a new picture to full intensity and then fade the old picture
out, but both full intensity pictures are mixed together to the output during the
transition. The resulting signal is clipped at white level to prevent generating illegal
video.
A wipe is a transition from one picture to another in which the edge of a shape moves
across the screen, revealing the new picture. Wipe transitions can be applied to
backgrounds, to ke
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