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Audio Visual Laser Installation

Beautiful, wild, wacky?! We want to see all your TouchDesigner creations here

Audio Visual Laser Installation

Postby colasf » Tue Nov 20, 2018 8:23 am

Our latest installation
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Re: Audio Visual Laser Installation

Postby cronin4392 » Thu Nov 29, 2018 3:00 pm

Fantastic! Can you share anything about the installation? How were you doing beat detection? Any interesting TouchDesigner techniques? What kind of laser projectors were you using? It really looks awesome!
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Re: Audio Visual Laser Installation

Postby ben » Fri Nov 30, 2018 7:06 am

In the TouchDesigner Help Group colasf said:
We are using 3 kvant laser with a etherdream interface and a custom cplusplus chop for the optimisation of the lasers paths.
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Re: Audio Visual Laser Installation

Postby colasf » Mon Dec 03, 2018 11:23 am

Like Ben said i'm using 3 kvant clubmax lasers with some etherdream interfaces.
I'm not doing beat detection i'm getting the data from ableton live via TDAbleton.
I had to run TDAbleton in another touch instance to avoid some frame drops.
I'm using a custom C++ chop to do the laser paths optimization because what the scan chop output is really not optimized and don't allow to draw complex shapes.
My node is working like the scan chop it take a sop and and camera as parameter, do the projection from world space to screen space to generate some 2 paths and use the algorithm described in that paper (https://art-science.org/journal/v7n4/v7n4pp155/artsci-v7n4pp155.pdf?fbclid=IwAR3Wk-au-kHcNCDcxnJIQmg906VDhbwMGzHflnztfX5qIPbr1bzPkCWJrfk) to optimize them.
It then output some chop channels that you can feed to the etherdream chops.
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