ChamSys Ltd www.chamsys.co.uk
MagicQ User Manual 79 Version 1.4.9.0
FX can be added and removed from the Programmer window.
8.1.1 FX base values
By default FX are added to the current channel values - therefore it is important to ensure that the channel
values are set correctly. For example, to run a circle in the centre of a MAC500s pan and tilt range, it is
necessary to set both pan and tilt to the centre position (128) before adding the FX. Changing the channel
values changes the point around which the FX is centred.
Similarly in order to run a 0% to 100% dimmer chase on HTP channels the channels should be set to 50%
intensity and the FX added.
Channel values and FX values do not have to be recorded onto the same playback. One playback can be used
to set the centre position of the FX and another to control the FX itself. The centre position can itself be part of
a multi Cue Cue-Stack or a chase thus a particular FX can itself be moved around.
If you wish to have a particular playback move heads to a particular position without a FX then record both the
position and a zero size FX on the playback. Recording a zero FX ensures any other playback running an FX
for those heads is over-ridden.
8.1.2 FX add modes
It is possible to change the way that FX are added to the base values. In the FX View of the Prog Window
and Cue Window there is an “add mode” field. Page right to see this option. This determines how the FX
in a Cue is added to the base values. There are three choices; Normal, Plus and Minus.
Normal is as default – i.e. a FX will apply both plus and minus of the base.
Plus adds the FX onto the top of the current base – i.e. the level will never be less than the
base.
Minus subtracts the FX from the current base – i.e. the level will never be greater than the
base.
Abs (absolute). MagicQ ignores the base value for the FX and simply outputs the FX value.
This is useful for absolute position FX and for colour change FX.
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