GRASS VALLEY GV KORONA, Руководство пользователя, Страница: 209 / 415

Kayenne/Karrera/GV Korona
User Manual
211
Transitions
A transition is a change from one image to another. The GV Switcher system supports three
types of transitions:
• Cut
• Mix
• Wipe
A transition can be applied to the entire picture, or to only the background or keyed
elements of the picture, and can include multiple elements.
M/E and Aux Panel transitions can be performed on the GV Switcher Control Panel.
Transitions are also possible from the M/E, Transition menu.\
Wipes
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 keys, 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 M/E has two separate 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.
Other Wipe Pattern Generator Uses
Wipe pattern generator circuitry can be used for purposes that do not involve transitions.
Each M/E has the two complex wipe pattern generators described above, and each of its
four Keyers also has a simple pattern generator and a box pattern generator, making a total
of six. These pattern generators can also be used for Preset Pattern, Masking, and Matte
Washes.
4K SDQS Wipe Limitations and Supported Wipe Patterns
It is recommended that in 4K SDQS (Square Division Quad Split) Frame Operating Mode,
wipe transitions should be previewed before taking them on-air. Wipes and supported
wipe patterns can be used in 4K but there are some limitations. For example, when moving
some wipe patterns:
• Horizontally more than +/- 16,
• Vertically more than +/- 23), or,
• X or Y more than +/- 14
may result in on-screen artifacts or anomalies.
Modulation, Multiply, and Horizontal Split functions are not supported. Rotation can be
used successfully with most of the wipe patterns but may cause issues with others so it is
best to preview the pattern with Rotation before taking it on-air.