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During regular operation, these 'words' need to be converted into 'values' that
DMX512 lighting fixtures can use. The trick with Natural Language Control is that
this conversion is done each and every time a light is selected, a Memory is
recalled or GO is pressed to start a cue (and not before). That means that the
protocol, the mode, the model or the manufacturer of the lighting fixture can be
changed at any time. Moreover, each and every light, regardless of who makes it,
appears similar to the user, giving a more consistent experience when
programming the controller.
Apart from the benefits described above, this method of controlling lights is not
restricted to traditional linear channels mapped to attributes on the light. A few
examples below will demonstrate the intuitive nature of describing lights'
attributes as opposed to traditional convoluted methods that sometimes group
completely unrelated behaviors on the same control channel.
Pan and Tilt Example
The Home position for pan and tilt on most DMX lights is 50:50 (or 32767:32767).
This positions the light such that you will have maximum movement in each
direction before encountering a pan-stop or tilt-stop. For a light that has a total
pan range of 360 degrees, with the control channel set to half, you are sitting at
180 degrees. Taking the control channel to full will move the light 180 off axis
towards a stop. So, to summarize, a value of 50% means "go to Home", and a
value of 100% means "go to the pan-stop 180 degrees from Home". Figuring out
that 90 degrees is half way in between those two values is easy. That would be
75%. And a 45 degree pan from Home is, again, half way between those two
values or about 63%. Now it begins to get a little too complex for the programmer
to calculate quickly.
To add to the complication, imagine you have another light in the rig that has a
total pan range of 540 degrees.