Sony DVS-7300 User Manual page 180

Wipes
Wipes
This section describes the setting operations for carrying out wipes.
Overview
A wipe is a transition in which the old video is replaced by the new video
according to the progressively changing shape of a wipe pattern.
A wipe which forms a transition between two backgrounds is called a
background wipe, and a wipe which inserts or removes a key is called a key
wipe.
M/E wipes, PGM/PST wipes, and downstream keyer wipes each use the
signals produced by dedicated wipe generators.
Note that a PGM/PST wipe is only possible on a 3.5-M/E system, and a
downstream keyer wipe is only possible on a 3.5-M/E system or 3-M/E
system equipped with a downstream keyer.
To use a downstream keyer wipe requires the optional BKDS-7320
Option
Luminance Keyer and Border Board in the DMK-7000.
Wipe patterns
You can select a wipe pattern from the selection displayed in a menu.
The direction in which a wipe proceeds is indicated by the pattern: at an
intermediate stage of the transition, the white portion represents the old
video, and the black portion the new video. Alternatively, arrows indicate
the direction in which some wipe patterns change. (See the Appendix "Wipe
Patterns" (page A-2)).
The wipe patterns may be grouped together under the headings below.
Note that for PGM/PST and downstream keyer wipes, it is only possible to
use the standard wipes, and further excluding number 24.
Note that to use any of the following patterns other than the standard wipes
Option
requires the optional BKDS-2070 Enhanced Wipe Generator Board to be
installed.
Standard wipes: Basic wipe patterns, using straight lines and circles to
Enhanced wipes: More complex shapes such as hearts and stars.
Mosaic wipes: Wipes dividing the image into a mosaic of small shapes.
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Chapter 4 Basic Operations for Image Creation
divide the old video from the new.