Internal media – Grass Valley Imagestore 750 v.3.0.1 User Manual
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Imagestore 750
User Manual
Internal Media
The following internal image file types can be cut or faded onto any keying layer with an associ-
ated store:
See
on page 39 for a description of the various keying parameters. The
images may be any size up to full-screen. Stored images and their associated keys are processed
at 10-bit resolution (unless the image is stored without a key to save space in which case it is
stored at 8-bit resolution).
Images
Logos and full-frame still images are defined within
.oxt
image files. The image file embeds
information such as the on-screen position, keying source and keying type. The image’s trans-
parency can be defined in a key image, so effects such as soft edges can be applied.
(See
on page 39 for more information.)
You can generate
.oxt
image files using one of the following applications:
•
Xplorer
•
Animation Builder (available on the MCS CD).
Animations
Cell animations are defined in
.oxa
animation files. The animation file embeds information such
as the on-screen position (for each field or frame of the animation if necessary), keying source
and keying type. The transparency of each frame may be defined in a sequence of key images,
so effects such as soft edges and dynamic fades can be applied. You can define any of the
following loop modes:
•
Single shot
•
Cycle
•
In-loop-out
•
Linear control
•
Ping-pong
•
Multiple loop
(See
on page 39 for more information.)
The maximum length of a cell animation is limited by the available store memory, as determined
by the installed memory and the amount of memory allocated to the associated keyer, in combi-
nation with the screen area of the animation. The duration of larger animations, up to full
screen, is reduced proportionally to the area used. Because areas are evaluated at each frame,
animations can change in size with no penalty.
If the last animation frame is completely transparent, then the keyer stays cut up after the
last animation frame. If the last animation frame is small (2×2) then the keyer cuts down after
the last animation frame.
Images
.oxt
Animations
.oxa
Easytext
.oxa
Bugclock
.oxa