Music Visualization Engine and Generative Drawing

February 12th 2009 in Actionscript Sound Visualization, Laboratory, Music Visualization & Generative Drawing

The Neural Orb from chris teso on Vimeo.

130 seconds of a music visualization engine and generative drawing built in AS3 using particles and physics engine.

See it in it’s 4:02 entirety HERE.

512 particles are released with instructions to randomly disperse throughout the scene. Variants include friction and wander. Particle location is constantly tracked and more particles are drawn at that location. These particles are sized and alpha’d according to stage location creating a “corridor”.

Music visualization occurs by looping through SoundMixer.computeSpectrum and creating a ByteArray. Each of the 512 particles are controlled the ByteArray which conveniently contains 512 bytes of data. Each byte contains a floating-point value. This value determines the individual particles scale and glow.

I hope to make this more interesting if/when I get some free time.

Music: All Mine | Portishead

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2 comments to...
“Music Visualization Engine and Generative Drawing”

ryan
wrote on February 16th, 2009

did you use any particle or physics engine or write your own from scratch? niaaace visuals… keep hacking dude… lets see more of this…

tebor
wrote on February 16th, 2009

Hey Ryan, thanks for the comment. I’ve used several and have done some from scratch as well depending on the situation. For example, I always loved BIT 101’s simple particle engine in AS2, so I rewrote it for 3 and use that when I need a quick and light engine [http://www.christeso.com/index.php/lab/bit-101-particle-class-in-as3/]. I’ve also used Flint before, and think it rocks. I sometimes write my own class if I need something small but very specified.

Thanks for the compliment, it’s fun shit.

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