Visual Productions B-STATION2 Manual page 35

7.4.1 Precedence
All active Playbacks produce DMX values. These values will be merged to-
gether and sent to the DMX output. The precedence setting determines how
this merging is done. Each playback can be set to either HTP (Highest Takes
Precedence), LTP (Latest Takes Precedence) or Priority.
HTP is the most common choice in precedence. With HTP the output of all
playbacks is compared to each other; for each DMX channel the level is set to
the highest value found in that particular channel amongst all playbacks. The
table below shows an example of HTP merging.
Playback 1
Channel 1 0%
Channel 2 100%
Channel 3 0%
Channel 4 0%
In the LTP approach only one playback is active amongst all LTP playbacks.
The output of that active playback is included in the merge with all HTP
playbacks. All other LTP playbacks are ignored. Which LTP playback is active
is determined by which playback is started latest, or which received a Go+
command latest. Please consider figure 7.7.
If there is a playback active with its precedence set to Priority then all other
playbacks are ignored. When there are multiple Priority playback then those
will be merged together according to the HTP principle.
Figure 7.6: Playback Editor
Playback 2 Playback 3
0% 25%
0% 25%
0% 0%
100% 25%
35
Merged Output
25%
100%
0%
100%