elektraLite P100 Manual Part Two - Manual (Page 40)

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the fixture works.
Each fixture type has a number of attributes and features that fixtures of that type support. Attributes
are static parameters that are set when the system is configured, such as the base DMX channel;
features are dynamic parameters that are varied from cue to cue.
g
Gobo
A gobo is a shadow mask placed in front of a lamp that creates a beam with a recognizable shape.
Often multiple masks are arranged on a wheel that can be rotated in front of a lamp to change shapes.
If a fixture has such a gobo wheel, it will also have a feature called Gobo whose value controls the
position of that wheel. (If it has more than one, the features will be called Gobo1, Gobo2, …) Some
gobo wheels can be rotated to any position including in-between positions; the CP-100 makes it easy
to adjust such features with the rotary controls by only stepping to those values that correspond to
properly-aligned positions, although the in-between values can be accessed by turning on the Fine
switch.
As with color wheels, the CP-100 has a shortcut Gobo command that allows the user to refer to gobo
features by wheel and mask number. For instance, if a fixture has two gobo wheels, each of which has
eight masks in it, the user can set them using the Gobo command with wheel numbers one and two
and mask numbers one through eight, rather than the more obscure feature numbers and values.
Grand Master
The Grand Master fader scales the brightness of all fixtures, usually by scaling their Dim features. In
addition, if the fader is moved all the way down, fixtures that have no dimmer control are turned off
by whatever alternate means is available, usually by selecting an opaque position on a gobo wheel.
Some fixtures use a single Dim feature to control the brightness, over a zero to 50 range, and then
switch to strobing at various rates. The Grand Master fader only scales the brightness of these fixtures
if their Dim feature is in the zero to 50 range; above that, the brightness cannot be scaled, although the
feature will still be forced off when the fader is moved all the way down.
If this fader is all the way down, moving lights will move, but otherwise generate no light, so it is
important to keep this raised except for special situations. It may be used to scale the brightness of the
entire show in cases where the power budget is exceeded.
Group
A group is a list of fixtures or dimmers that the user wishes to treat as a unit. Groups are merely a
convenience for the user, and don't prevent the individual fixtures or dimmers from being controlled
separately. For instance, if a group of fixtures is selected, their features can be set in tandem using the
rotaries. This, however, is just a shorthand for setting the features individually. If the group is later
redefined, it doesn't affect anything previously done with the group.
When a group is created, the user assigns it a unique arbitrary number, and may also assign it a name
to assist in keeping track of what group is what. There is a separate list of fixture groups and dimmer