Martin TrackPod 2.0
Page 31
The sixth fader, the one furthest to the right, is always used for
changing the target height of the tracking system and this is why
it is not shown on the pages (see next section for an explanation
of height control).
The “Intensity Master” sets the intensity of the followspots
from 0 to 100. The “Intensity Offset” offsets the current inten-
sity of the followspots by -100% when the fader is all the way
down to +100% when it is all the way up. This is useful when the
console, a cross-fade line or a map are controlling the intensity
and you want to bump it up or lower it a bit from the current
value. The “Intensity by ID” option sets the control of the
intensity of specific followspots; for instance, you may assign a
fader to only fade a group of Mac500s.
If you click on a page you will see automatically generated notes that
reveal the fader definitions. These notes can be seen in the TrackPod
display during playback (by pressing the F2 key) so that the operator
may remember what parameter is controlled by what fader.
Height control
The TrackPod encoders calculate where a performer is in two dimen-
sions (x and y) and the system has several ways of specifying the actual
height of the performer (the z) which tends to be quite constant during
most performances. Please refer to Figure 11 to understand the concept
of target height.
Target height - This is the height above the stage floor at which
followspots will be directed, i.e. where they will intersect. By default
this is 1.5 metres, which is an average height to light performers’ faces.
This target height can be changed during playback by moving the sixth
fader in the TrackPod controller. If you bring the sixth fader all the way
down the target height will be zero and all the followspots will be
directed at the stage floor. The only times that you may want to vary the
target height is if you are tracking performers of different heights or if
all of a sudden your performer lays down on the floor. Target height is
very important when fixtures shine onto performers from all different
angles because in those situations it can be difficult to track by only
using shadows as a guide. If the target height is set for the appropriate
height of the performer you are guaranteed that if he or she is in your
line of sight ALL followspots will shine directly on him or her.
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