Color and Gobo wheel

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Mike LCS

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Sep 24, 2025, 4:11:29 PMSep 24
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Hi Math,

I’m trying to drive a moving head’s color wheel (and the GOBO wheel too) in Lightjams so that it stays on white (0%) most of the time and occasionally flips to pink (~2%) for a brief moment, then returns to white. I don’t want a continuous sweep—just discrete jumps between 0% and ~2%.

What’s the simplest way to do this?

  • Step Source with two values (0 and 2) and a slow/random advance?

  • Or a Math formula that outputs 0 most of the time and sometimes 2 (e.g., using noise/gate/timer)?

  • If Math, could you share a minimal example expression that does: “0 → sometimes 2 → back to 0”, with adjustable interval (e.g., ~10–20 s) and brief hold (e.g., ~0.5–1 s)?

Notes:

  • Fixture is a color-wheel (discrete slots), so I’m targeting exact DMX ranges (0% = white, ~2% = pink).

  • I just need this for the Color attribute; other attributes are on separate grids.

Thanks a lot!

Mike

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Mathieu

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Sep 25, 2025, 8:04:43 AMSep 25
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Hi,

You can use a grid with a width of 2 and put one attribute with the preset of 0% and another attribute with the pink preset. Then add a source and link its x slider to the random pulse shape. 

LCS Mike

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Sep 27, 2025, 9:34:45 AM (13 days ago) Sep 27
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Hi Mathieu,

thanks a lot for the clear explanation! 🙏 That makes perfect sense now with the 2-wide grid and using the random pulse shape on the X slider. I’ll set it up this way and test it out.

Really appreciate your support!

Best,
Mike 


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