ChamSys Ltd www.chamsys.co.uk
MagicQ User Manual 22 Version 1.4.9.0
2.2.1 HTP / LTP channels
The console supports two types of channels, highest takes precedence (HTP) and latest takes precedence (LTP).
Generally HTP channels are used for channels controlling dimmers and for the dimmer channel of intelligent
heads. LTP channels are used for the attributes of intelligent heads such as pan, tilt, colour, gobo etc…
For HTP channels the value that is output onto the DMX line is the highest value of that channel on all of the
active playbacks and the programmer. The console can be configured so that if a HTP channel is in the
programmer it always overrides any active playbacks.
For LTP channels the value output is the value from the last active playback unless that channel is active in the
programmer in which case the value output is the value stored in the programmer.
The last active playback is the last playback to be raised above zero, which is still above zero. Playbacks that
are bumped in using ADD or SWAP buttons automatically become the last active playback until the button is
released.
The type of channel used by the console is determined by the personality used to patch the dimmer or
intelligent head.
Playbacks can be set so that all channels controlled by the Playback act in a LTP way, thus allowing Intensity
channels to be overridden by a single Playback.
2.3 Cues
The console stores lighting states as Cues – each Cue stores
• Level information
• Timing information
• FX information
The Cue stores level information for each of the channels recorded into it. If the channel level was set
using a Palette, then a reference to the Palette is also stored so that the Cue can keep track of changes to
the Palette.
The Cue stores timing information for the channels that have been recorded into it. Two types of timing
information are stored:
General Times: Stored for each type of attribute (Int In, Int Out, Position, Colour, Beam)
Individual Times: Stored on an individual channel basis
The Cue stores FX information for each of the FX that has been recorded into the Cue. The FX
information includes the type of FX, the heads that the FX is applied to, and the FX parameters for each
head.
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