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value of the slider will be the value of the brightest fixture in the project, so in this example it
would be 5000 Nits.
Tip: If you wish to control the brightness of an array including different types of fixtures whilst
maintaining them at a matching level then this is best achieved by leaving the brightness slider
at default and modifying the intensity slider.
RGB Gain
The RGB gain controls allow the user to adjust the level of each of the primary colours in the
output to the connected fixtures. Their default value is 100%.
Adjusting all 3 RGB sliders to 50% would have the same effect on perceived brightness as
lowering the Intensity slider to 50%.
Colour Temperature
The Temperature slider allows the user to adjust the white balance of the fixtures attached
in a range from 2,000-11,000 Kelvin.
Gamma
Gamma can be modified in a range from 0.2 up to 4.0. The default gamma setting of the M2 is
2.35.
Gamma or gamma correction is a way to adjust how bright the midtones in the image appear
without affecting the very dark or very bright areas of the image. A higher value results in
lower brightness. If images are not gamma encoded, they allocate too many bits or too much
bandwidth to highlights that humans cannot differentiate, and too few bits/bandwidth to
shadow values that humans are sensitive to and would require more bits/bandwidth to
maintain the same visual quality. By increasing the differential between areas of shadow and
light in certain parts of the luminance curve of a particular piece of content it is possible to
increase the amount of detail that can be perceived by the eye, thus rendering the image in
more detail and with more contrast. This gamma correction is done by a simple function. In
most computers images are encoded with a gamma constant equivalent to about 0.45 and so
are decoded with a gamma of approximately 2.2. Mac computers used to be encoded at 0.55
and hence decoded at 1.8. This is why it often helped to set a lower gamma value on the
output of a display when it was connected to a MAC computer source for best results. Since the
Mac OSX Snow Leopard release Apple have changed their default gamma values to a value
more in line with the 0.45/2.2 ratio used by other manufacturers Override Global Colour
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