RGBW LEDs with unusual channel order

[philbearman]

Hi,

I'm trying to use a string of DMX RGBW pixel modules with Resolume Arena, but they have a very unusual DMX channel arrangment:

Channel 1: Blue
Channel 2: White
Channel 3: Green
Channel 4: Red

And this isn't one of the options listed in the fixture editor in Arena.

Does anyone know of a workaround for this in Arena?

I notice fixtures are stored as XML files, so perhaps the Resolume developers could make it possible to define custom colour channel mapping in this somehow in a future version...

Any help much appreciated.

Phil

[philbearman]

Just to follow up on this in case anyone else has the same problem:

I spoke to Christoph from Resolume who said "We do have plans to implement some sort of editor where you can configure your own fixture pixel layout, but this is not yet developed, so I fear for now Arena is limited to the pixel options available in ofr fixture editor."

[Menno]

Okay so big remark: this is unsupported

but... you can change the order in the xml file.
Find the

Code: Select all

ParamChoice name="Color Format"

and change the order in the value attribute. For example i can create a rgbw fixture and then change the attribute to "bwgr" and it'll work... for now.
The way this works is that i have assigned letters to predetermined dmx colors and extract them from the video in order of color precision and send them out in order of the color format.

These are the available channels:

Code: Select all

w: White
a: Amber
r: Red
g: Green
b: Blue
l: Luminance
c: Cyan
m: Magenta
y: Yellow
v: Alpha

You can even do "rrr" for example if you want to send out red three times for funzies.

But yeah, as i mentioned: this is not actively supported. It might break tomorrow, next version, next year and without notice.

[philbearman]

Ah cool! This workaround will be very useful for experimental purposes if nothing else. Thanks for sharing!

All the best,
Phil