High End Systems 2.0.0-EN Manuale Utente
it is at 100%, then the level seen on stage will be 100%. If the submaster is reduced to 40%, then
the on-stage level will be 50%, because the level in the playback is higher and will take preced-
ence.
the on-stage level will be 50%, because the level in the playback is higher and will take preced-
ence.
This system generally works well for non-moving light consoles, but moving lights introduce a
problem. Parameters other than intensity don't have ‘higher’ and ‘lower’ values: a colour of red
is not higher or lower than green, and a pan of 50% is not higher or lower than one of 20%.
Working with moving lights needs a new way to decide the precedence, called Latest Takes
Precedence (LTP).
problem. Parameters other than intensity don't have ‘higher’ and ‘lower’ values: a colour of red
is not higher or lower than green, and a pan of 50% is not higher or lower than one of 20%.
Working with moving lights needs a new way to decide the precedence, called Latest Takes
Precedence (LTP).
With this system, the fixture parameters are at the value they have been most recently assigned.
In our example, moving the submaster to 40% would result in a level of 40%, because this is the
latest instruction and will take precedence. The submaster would effectively ‘grab’ control of
the parameter from the playback. Of course, running another cue in the playback might grab it
back again.
In our example, moving the submaster to 40% would result in a level of 40%, because this is the
latest instruction and will take precedence. The submaster would effectively ‘grab’ control of
the parameter from the playback. Of course, running another cue in the playback might grab it
back again.
Many moving light consoles use HTP for intensity and LTP for all other parameters. By default,
Hog 4OS uses LTP for all parameters, but you can assign individual cuelists to use HTP for in-
tensities (all other parameters are still LTP); see Using HTP and LTP (p.265).
Hog 4OS uses LTP for all parameters, but you can assign individual cuelists to use HTP for in-
tensities (all other parameters are still LTP); see Using HTP and LTP (p.265).
2.6
Colour Matching
Fixtures of different types use different methods to perform colour mixing. Sending the same
parameter values to fixtures of different types might produce a different colour on each type.
For example, sending C=50%, M=50%, Y=0% will always produce a shade of blue, but it'll be
a different blue with different fixture types.
parameter values to fixtures of different types might produce a different colour on each type.
For example, sending C=50%, M=50%, Y=0% will always produce a shade of blue, but it'll be
a different blue with different fixture types.
Usually, you have to compensate for this yourself by manually creating colour palettes by eye
to produce similar colours on all fixture types. This is a time consuming process, and later restricts
you to using the palettes you have already set up.
to produce similar colours on all fixture types. This is a time consuming process, and later restricts
you to using the palettes you have already set up.
The Hog 4OS's colour matching system provides a new way to choose colours, without these
problems.
problems.
2.6.1
Colour Models
Traditionally, colour mixing fixtures use the CMY (Cyan, Magenta, Yellow) system to uniquely
define each colour they can produce. With the increasing popularity of LED fixtures, the RGB
(Red, Green, Blue) system is also becoming more common. These two systems are called ‘colour
models’. Any colour can be represented equally well by either of these two colour models - they
are just different ways of conveying the same information. Many other colour models exist,
perhaps the most useful of which (for lighting control, anyway) is the HSI (Hue, Saturation, In-
tensity) system:
define each colour they can produce. With the increasing popularity of LED fixtures, the RGB
(Red, Green, Blue) system is also becoming more common. These two systems are called ‘colour
models’. Any colour can be represented equally well by either of these two colour models - they
are just different ways of conveying the same information. Many other colour models exist,
perhaps the most useful of which (for lighting control, anyway) is the HSI (Hue, Saturation, In-
tensity) system:
Hue: This is the term used to specify the colours position in the possible range
a colours, from red, going through yellow, green, cyan, blue and magenta, and
finally returning to red. As the range ‘wraps around’, you can visualise it as a
circle with the colours positioned around the edge, with red at the top, green at
a colours, from red, going through yellow, green, cyan, blue and magenta, and
finally returning to red. As the range ‘wraps around’, you can visualise it as a
circle with the colours positioned around the edge, with red at the top, green at
High End Systems
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Section 2: Hog 4OS Fundamentals