Syntax
| Command | Description | Return Value |
|---|---|---|
Assert |
Raises the priority of selected LTP channels in the active playback fader | 0 |
Abbreviation
AS
Description
The Assert command raises the priority of selected LTP (Latest Takes Precedence) channels in the active playback fader.
When the current fixture patch contains LTP channels, and that channel has values in more than one playback fader, only a single playback fader that has priority for that channel will output that channel value. Specially, the most recent (latest) playback fader that received a value for that channel will have priority. Sometimes it is useful to raise the priority of of channels in a playback so they regain control of the output.
LTP channels are typically used for moving light fixture parameters such as Pan/Tilt, indexed color wheels, or control channels. These fixture properties do not work well in scenarios where values coming from multiple playbacks would normally be combined together in a Highest Takes Precedence (HTP) manner. For these properties, only the most recently adjusted playback will take precedence.
Example
Assume there are two cues that have the position (Pan/Tilt) recorded for a moving light fixture. Cue 1 points the fixture towards the Left-Rear of the room, and Cue 2 points the fixture towards the Front-Right of the room.
First, Cue 1 is played back in Playback 1:
Playback 1; Cue 1 Go
The fixture points to the Left-Rear of the room. There is no other playback contributing values to the Pan/Tilt channels of the fixture.
Next, Cue 2 is played back in Playback 2:
Playback 2; Cue 2 Go
The fixture points to the Right-Front of the room. This occurs because now the Pan/Tilt channels in Playback 2 have the highest LTP priority.
Next, we want the values for Pan/Tilt in Playback 1 to become prioritized, so we assert those channels:
Playback 1; Fixture 1; Assert
The fixture points to the Left-Rear of the room. This occurs because now the Pan/Tilt channels in Playback 1 have the highest LTP priority.
In this last command, we selected all channels in Fixture 1 to become asserted, but we could have narrowed down the selection to only target the Pan/Tilt channels using a command like Channel 1>4; Assert, or possibly use a group like Group 3; Assert, or any other channel selection command.