RGBW light definition . . .

[William Mackwood]

Hello All,

I have a question regarding the fixture profiles in Lab. I am running the 'Ellipsoidal 180-watt COB LED - 9 channel’ light definition.

Does anyone know the formula used in the definition to determine the W component of the RGBW output. I’m assuming it’s a calculation based on the RGB values from the colour picker . . . but I don’t know how to find that formula.

Thank you for any help you can offer.

William

QLab5

[Sam Kusnetz]

Hi William

QLab does not derive the W component of an RGBW fixture. If you use an instrument definition in QLab that has a W component, that means QLab is expecting the actual lighting fixture to have a DMX channel associated with the white emitter.

If you’re using an RGB definition and seeing your fixture’s white emitter come on, then that means the fixture itself is deriving a W level from the incoming R, G, and B data.

Sam

—

Sam Kusnetz (he/him) | Figure 53

s...@figure53.com

--
Contact support anytime: sup...@figure53.com
User Group Code of Conduct: https://qlab.app/code-of-conduct/
 
Instagram: https://www.instagram.com/Figure53
TikTok: https://www.tiktok.com/@QLab.app
Bluesky: https://bsky.app/profile/qlab.app
---
You received this message because you are subscribed to the Google Groups "QLab" group.
To unsubscribe from this group and stop receiving emails from it, send an email to qlab+uns...@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/qlab/33545ff0-47ec-41ee-b7ba-ffc155baa02dn%40googlegroups.com.