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New eye melty LSX laser show "Analog Carnival"

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swamidog

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here's a new show i've been working on. this is set to the song "carnival underground" from the night breed soundtrack by danny elfman.

i wanted to capture the chaotic insanity and wonderment that the music and the scene in the film broadcast. i hope you enjoy it!

LSX, etherdream DAC, DT40W, and a single mode diode kit from DTR.

 
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CDBEAM777

CDBEAM777

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THAT IS BEAUTIFUL !!!!!!!!! And is the force....drawing me back to projectors !!! The music is perfect.....or is the show perfect for the music !!! It does NOT matter !!! They go absolutely perfect together. THIS is the seed.....that will pull many into the projector world.....you watch !!!! THANK YOU !!!
 
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swamidog

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i'm so happy that you and others are sharing the love of light that i have. it makes the many hours that i spend on these shows worth while.

if anyone here is coming to SELEM, you'll get a chance to see them in giant size on the most incredible projector ever.

CDBEAM777 said:
THAT IS BEAUTIFUL !!!!!!!!! And is the force....drawing me back to projectors !!! The music is perfect.....or is the show perfect for the music !!! It does NOT matter !!! They go absolutely perfect together. THIS is the seed.....that will pull many into the projector world.....you watch !!!! THANK YOU !!!
Click to expand...
 
Sigurthr

Sigurthr

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I'm always amazed by your shows, Swami!

I've never had the funds that would justify me taking a serious look into what is involved in creating a laser show, but I've always wondered, from the creator perspective what is actually involved in creating a single frame of a design. I don't mean for abstract geometric shapes that you can take various graphing functions and modify for, but for organic or nonsymmetrical designs. Do you have to literally draw the frame with a mouse or stylus pad? Does the program determine which segments get drawn when, or do you have to specify that? How do you know how much line length you can draw before persistence of vision depletes? For multiwavelength projections, do you have to manually indicate the relative power for each laser or do you program certain color mixtures and then chose from them when drawing segments? You can probably tell; I understand the hardware aspect, but am clueless about the software and design side!
 
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swamidog

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these are really excellent questions and i'll try to answer them.


the software i use (LSX) has a drawing editor for non abstract shapes. it's a pretty simple utility. on the most basic of levels, you select a color, place points and it draws lines between the points. very simple.

the laser can be on during the process. so, there's real time feedback about image flicker. the software preview window does try to simulate things like flicker, but i prefer to just keep the laser on at all times.

for the most part, the software handles all the color calculations behind the scene. when you first setup the software, you do color calibration, and then the software maps colors to individual laser power levels. if you want colors outside of the standard palette, you can roll your own colors by manually setting power ratios for event or frame.



Sigurthr said:
I'm always amazed by your shows, Swami!

I've never had the funds that would justify me taking a serious look into what is involved in creating a laser show, but I've always wondered, from the creator perspective what is actually involved in creating a single frame of a design. I don't mean for abstract geometric shapes that you can take various graphing functions and modify for, but for organic or nonsymmetrical designs. Do you have to literally draw the frame with a mouse or stylus pad? Does the program determine which segments get drawn when, or do you have to specify that? How do you know how much line length you can draw before persistence of vision depletes? For multiwavelength projections, do you have to manually indicate the relative power for each laser or do you program certain color mixtures and then chose from them when drawing segments? You can probably tell; I understand the hardware aspect, but am clueless about the software and design side!
Click to expand...
 
COMMANDR

COMMANDR

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Fantastic work Swami, Love the 3D effects you get. The music is just perfect for the graphics.
Very nice choice. As of just recently I have dipped my toe into the projector pool.
I have a RGB 850mw Laser Show Systems "Emote" PJ and QS (QuickShow) and a FB3QS.
Pangolin software is easy to use and is quite powerful. The PJ's scanner are only 20k but they do an amazing job
for what they are. Maybe in the future I will have look into getting a PJ with more power and faster scanners. ( 35K ) :>)
 
Sigurthr

Sigurthr

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Thanks Swami!

I'm actually manually programming an X-Y stepper motor scanner head now that I inherited a while back. I'm doing it in C++, manually setting each pulse to each coil of the steppers. I'm working on a square spiral pattern, roughly 283 individual steps in a 16x16 grid. It would be 1132 lines of code for the steps alone if I weren't using subroutines.
 
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