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Thread: My first beam show

  1. #1
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    Default My first beam show

    Hey all,

    Just thought I'd share the first beam show I've ever programmed. Used LaserShowGen, Helios DAC, Opt PD3000-RGB. It's an homage to the new album from The Midnight, "Heroes," which was released today. I was learning as I went. Thoughts welcome. Hope you enjoy!


  2. #2
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    Wow. Beautiful work.

    Can't wait to see your 10th or 100th beam show.

  3. #3
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    Quote Originally Posted by HankLloydRight View Post
    Wow. Beautiful work.

    Can't wait to see your 10th or 100th beam show.
    Thanks so much! Glad you enjoyed it.

  4. #4
    soforene's Avatar
    soforene is offline The Troll formerly known as Herbert Von Poople-Futtocks
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    If you have a good solid tune then the show builds itself (in your mind) as you are listening.

  5. #5
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    Nice Job! Looks great.... for a first time show it's phenominal.

  6. #6
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    Quote Originally Posted by soforene View Post
    If you have a good solid tune then the show builds itself (in your mind) as you are listening.
    Well, not so much for this first go, as I was trying to figure out the rather eccentric and unintuitive nature of show creation using LaserShowGen, but now that I've got a handle on it, I think I'll be able to get more creative in future shows.

    Also, this projector scares me a bit. It's only 3 Watts, but jeez in my basement, it's really damn bright. I hung a large black canvas tarp for beam termination, but the water resistant coating is quite reflective, so much so that if I shine a flashlight at it, the reflection hurts my eyes, so I'm kind of scared to even look at that. Also, running a test pattern while setting up my anodized aluminum tripod is unsettling. I ended up getting a pair of the NoIR RGB frames (190-534nm OD6+. 632-642nm 3.5+), and they make the beam completely invisible. I then use my phone to see the test pattern and move things around. I hide around the corner when running it. I'm being a bit overly cautious, but ya know, WARNING: Do not observe laser with remaining eye, and such.

    I need to get a different tarp that is actually just regular canvas. I'll feel way more comfortable with that.

  7. #7
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    Quote Originally Posted by cfavreau View Post
    Nice Job! Looks great.... for a first time show it's phenominal.
    Thanks so much! I'd actually like to enter the ILDA awards, perhaps not in '23, but maybe in '24. I'm working on 3 additional shows currently, just practicing.

  8. #8
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    Why not try a neutral density filter in front of your laser or just making a beam attenuation circuit with 3 potentiometers (one for each color?) to turn the brightness down? Or I think LaserShowGen has a "Color Range" adjustment in the settings you can turn the max. brightness down with.

  9. #9
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    Quote Originally Posted by cfavreau View Post
    Why not try a neutral density filter in front of your laser or just making a beam attenuation circuit with 3 potentiometers (one for each color?) to turn the brightness down? Or I think LaserShowGen has a "Color Range" adjustment in the settings you can turn the max. brightness down with.
    Yeah, you can adjust the power/intensity in LaserShowGen, but I've found that the red, green and blue diodes do not attenuate linearly. Red is last to fully attenuate. It affects white balance if I turn it down too much.

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