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Thread: CYGN-B

  1. #401
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    All this is specific to the Mark 6. The extra RGB scanners with a CS projector had additional capabilities.
    "There are painters who transform the sun into a yellow spot, but there are others who, with the help of their art and their intelligence, transform a yellow spot into the sun." Pablo Picasso

  2. #402
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    mixedgas is offline Creaky Old Award Winning Bastard Technologist
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    What is in a CS? Have pictures?

    Steve
    Qui habet Christos, habet Vitam!
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  3. #403
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    Quote Originally Posted by mixedgas View Post
    What is in a CS? Have pictures?

    Steve
    http://www.laserium.org/hardware/CSL-X.html

    Click image for larger version. 

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    "There are painters who transform the sun into a yellow spot, but there are others who, with the help of their art and their intelligence, transform a yellow spot into the sun." Pablo Picasso

  4. #404
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    Quote Originally Posted by laserist View Post
    For Rocky Mountain Way I had the Red override switch in the center position (summing) and used the slow CYGN-A oscillator to play the mouth with gain and symmetry mostly. Maybe frequency too. What Greg thought was triangle Audio Mod is just KQO with x axis of CYGN-A.
    I sure do appreciate comments on the minutiae of specific numbers, and especially this one. I remember doing the mouth as you described. Well I have the CYGN-A and KQO, and and I'm thinking of the herringbone kind of thing that at least looked like an audio modulated carrier. Guessing maybe the data controlled gains figured in somehow. This is inspiring me to begin the Audio Mod rebuild and see what's there.

  5. #405
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    These might be photos of a CS projector.
    Attached Thumbnails Attached Thumbnails projector1.jpg  

    projector2.jpg  


  6. #406
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    Something like this:
    Attached Thumbnails Attached Thumbnails AudioCycloid.jpg  


  7. #407
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    Yes, Greg, that is exactly a CSX projector, but without the CS beam-rail behind the 3 main projector boxes. The 3 boxes are - 1) RYGB scanners (with scan-glasses), 2) Lumia, and 3) fiber and "rock" turrets plus the additional RGB scanner in the upper right. The CS beam rail hosted raw beam launchers and fiber adaptors for the 4 remote scanner sets (also with scan glasses) (north, south, east, and west) and another RGB scanner for the zenith. That meant that we had 2 overlapping RGB scans at the zenith! We had all-dome coverage! It was a monster of a projector.

    Ron



    Quote Originally Posted by Greg View Post
    These might be photos of a CS projector.
    Last edited by ronhip; 12-22-2021 at 22:40.

  8. #408
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    From Brian:

    Yes that's the master encoder from Studio A. There were a number of encoders, but only the one in Studio A encoder had the filters and stuff to generate signals from the sound track, etc. The others were just a variation on the theme on the part in the photos with the sliders and switches. The 351 data channel consisted of 20 bytes of data repeated every every 25 milliseconds. Some of the DOG routines were triggered - like popcorn. It allowed you to jump to a new offset on each drum beat.


    It turns out the Laserium business model of a single laserist performing live wasn’t the way Laserium began. In the beginning Ivan (Dryer) and Charlie (McDanald) had 4 friends controlling the x and y axis sliders to control the gain for each image used in the Blue Danube. If they had to pay six laserists to do each show – well, forget commercial success. Charlie once told me that one of the smartest things Laser Images' did was the decision to emulate those other hands. They couldn’t record the relatively high bandwidth imagery, but they could record the low bandwidth voltages the sliders generated. This left the laserist to control imagery, color modulation, joystick, and intensity modulation. It turns out the recording of those ghosts moving the sliders complemented not just the imagery originally intended, but often complimented things nobody had thought of yet. The recorded portion of the show became something akin to the score in an interpretive dance piece. (An interpretive dance score tells the dancers where to move on stage - not how to dance. Some people who have studied music visualizations talk about painting with light, Laserium was more about dancing with light.) The data track adjusted the size and position and other important things that allowed the laserist to focus on the things that made the show a SHOW. So, meta choreography is one the things Laserium did right.
    The 351 data for Laserium '79 has been decoded and reviewed. This show, which I never saw, is stuffed full of great 351 choreography. In some parts rapidly changing values are used to add to the variety of effects achieved with just the minimal gains and offsets scheme.

    Attached are a few more photos I have of the encoder. It would have been really fun to learn how to operate these decks. For example, I'm curious how effects where the four color channels are rhythmically chasing each other's sizes were set up.

    I thought the CYGN-A thread concluded with some respectful tribute posts to some of the original crew. Those posts seem to have been removed.

    I'm currently working on the wiring chart for the Audio Compressor and Amplifier section of the Audio Mod Card.
    Attached Thumbnails Attached Thumbnails laserium_deck1.jpg  

    laserium_deck2.jpg  

    laserium_deck3.jpg  

    Laserium79_351.png  


  9. #409
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    Those are all pictures of the stuff that made Studio A's encoder the master encoder. John Tilp, then Scott Anderson, and Darryl Davis were the principle choreographers from my time. If Jon Robertson could find the documentation it would be fun to figure out what everything did, but I'm not sure there was a documentation package for those boxes. I never saw one.
    "There are painters who transform the sun into a yellow spot, but there are others who, with the help of their art and their intelligence, transform a yellow spot into the sun." Pablo Picasso

  10. #410
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    Here is a test of the Audio Compressor Amplifier section of the Audio Mod board.
    Attached Thumbnails Attached Thumbnails AudioCompressorAmplifier1.jpg  

    AudioCompressorAmplifier2.jpg  

    mistake_in_doc.png  


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