User guide
6-46
CLIPSTER Edit Tool User Guide
6.4.8 Prerendering of Timeline Elements
When adding timeline elements, such as clips or operators, to the time-
line, they are immediately tested for their real-time capability which de-
pends on various factors, such as frame size, play-out frequency,
location of the clip on the storage, etc. Those elements that exceed the
real-time capability of the DVS system will be subject to a prerendering.
Fact is, the greater the resolution of the material in the timeline and/or
the video raster set for an output the more likely the chance that a pre-
rendering is required. Then the system will not be able to handle the re-
spective clip or operator in real time.
A prerendering of timeline elements means that the Edit Tool calculates
the elements before a play-out takes place and stores the calculated ex-
tra files (rendered images) in a temporary location on the storage.
These are then used for a play-out instead of the original material in the
timeline.
A part of the timeline that has to be prerendered before a play-out will
be displayed with a yellow line in the timeline scale:
A prerendering may be indicated for all types of timeline ele-
ments, i.e. clips as well as operators (e.g. transitions). If any ex-
ceed the real-time capability of the DVS system, they will be
marked for a prerendering. Further information about the real-
time capability of clips can be found in section “Real-time Ca-
pability of Clips” on page 4-13.
It is best to handle and administer the temporary data project
specific, meaning for each project in a different temporary stor-
age location. Further information about this can be found in
section “Notes on Project Management” on page 2-14.
Depending on the optional features and the hardware equip-
ment available, your DVS system may still be able to handle el-
ements that are marked to be prerendered in real time.
However, if non-real-time capable material is played out,
frames will be dropped (see section “The Performance Moni-
tor” on page 4-36). With operators that are not real-time ca-
pable, the system will simply not apply them. In both cases the
material has to be prerendered prior to a play-out.
Whether the DVS software marks a timeline element to be pre-
rendered, can to some degree be determined with a setting in
the Configuration Tool. More information about this can be
found in the “CLIPSTER Configurations” user guide.