Re: [LCtalk] Submaster Fader Implementation Idea

[Carey Weathers]

> The LanBox has "Intensity masters" on each lighting channel already, 
> so if I understand correctly you want another level of "masters"?

Somewhat. I want a level of masters (DMX and/or internal) that I can map 
to specific channels, and under layer control, not manual GUI control. 
In addition, they need to effect the mixer in percentage 0-100%, not 
raising/lowering the active channels by steps. Under the current master 
settings the following happens as the master is raised and lowered:

 Start Master  Ch1  Ch2  Ch3
       255    120   80   40
       250    115   75   35
       210     75   45    0  (note, ch3 has already hit 0)
       160     25    0    0

Now, going back up
       250    115   90   90  (note, ch2 and 3 have the same values)
       255    120   95   95

The end result, ch2 and 3 did not return to their original values. 
That's why this is not a true submaster. A submaster would have done:

       255 (100%)    120   80   40
       250 ( 98%)    117   78   39
       210 ( 82%)     98   66   33
       160 ( 63%)     76   50   25
       250 ( 98%)    117   78   39
       255 (100%)    120   80   40


> On a RGB fixture you have three channels (each with it's own 
> "master"), and an Intensity wheel which acts on all three channels at 
> the same time, and proportional. What does not change proportional?

....... 


> > Therefore, the color of the light changes instead of the intensity.
>
> Please enlighten, it's getting complete dark for me;-)

If I use the master Intensity wheel, I get the action described above. 
And an LED fixture set to 120, 80 and 40 does not display the same color 
as one at 120, 95, 95. Likewise, at the dimmer setting, 25, 0, 0 is not 
a darker (but same tint) color of the original, it is a completely 
different tint.