Wipes; Overview - Sony DVS-7250 User Manual

Operation software, digital video switcher system
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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 on an M/E bank is called an M/E wipe, and a wipe on the PGM/PST
bank is called a PGM/PST wipe. Again, 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, and PGM/PST wipes each use the signals produced by dedicated
wipe generators.
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.
Option
Note that to use any of the following patterns other than the standard wipes
requires the optional BKDS-2070 Enhanced Wipe Generator Board to be
installed.
4-60
Chapter 4 Basic Operations for Image Creation
Standard wipes: Basic wipe patterns, using straight lines and circles to
divide the old video from the new.
Enhanced wipes: More complex shapes such as hearts and stars.
Mosaic wipes: Wipes dividing the image into a mosaic of small shapes.
Diamond dust: An effect like a scatter of small particles.
This appears in the list of wipe patterns as "DIAMOND DUST". By
adjusting the parameters, you can change the size of the particles and the
rate of twinkling.

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