DMX output Steps

I'm sorry for this one, it's for my own justification after an exhausting day. . .

EOS consoles output DMX in 256 steps, but those are virtual steps based upon the console processing data as 0%-100%?

( 1% change = 2.56 steps output )

In other words, my ColourForce IIs may have been at 07% and faded to Zero in 7 seconds, but that happened in 7 steps not 17.92 steps.

Hence:

 

and that would also explain the colour shifts due to the lack of the units having an intensity channel? (in RGBA, not HSI)

 

(Some days you think you know what's going on, but everyone else says you're wrong.... That was my day.)

 

Thanks everyone!

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  • Yes for your observation on the color shift. The intensity is basically a multiplier for the values of each color (think of it as a proportional fader) due to the resolution, on color could be already off whilst others still have outputable values. Hence the color shift.
  • i agree with the others. during a fade, although the Live display shows percent, the actual output goes through all the available DMX-Steps. so going from 7 to 0 percent outputs values (roughly) 18 through 0.

    regarding the color. let's do an example: you start with a color that has blue @ 255 and red @ 10. now you fade out the intensity. intens is a factor over the color values.
    100%: 10/0/255 (RGB)
    50%: 5/0/127
    10%: 1/0/25
    5%: 1*/0/12 (1* depending on rounding)
    4%: 0/0/10

    depending on the product and the calibration (or lack thereof) of individual fixtures you might not get output with a DMX value below a certain value. because dimming LEDs is hard let's assume that a certain striplight can't output a color if the DMX value is below 5 (less than 2%). then you'd lose the red part of the color mix already at 49% intensity of our example.
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  • i agree with the others. during a fade, although the Live display shows percent, the actual output goes through all the available DMX-Steps. so going from 7 to 0 percent outputs values (roughly) 18 through 0.

    regarding the color. let's do an example: you start with a color that has blue @ 255 and red @ 10. now you fade out the intensity. intens is a factor over the color values.
    100%: 10/0/255 (RGB)
    50%: 5/0/127
    10%: 1/0/25
    5%: 1*/0/12 (1* depending on rounding)
    4%: 0/0/10

    depending on the product and the calibration (or lack thereof) of individual fixtures you might not get output with a DMX value below a certain value. because dimming LEDs is hard let's assume that a certain striplight can't output a color if the DMX value is below 5 (less than 2%). then you'd lose the red part of the color mix already at 49% intensity of our example.
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