Thor Frølich » generative art

Gumowski-Mira attractor

Thor Frølich — Tue, 07 Jul 2009 08:44:34 +0000

Oh, dear. Another attractor. I’m pretty sure the dread lord Cthulhu lives inside the Gumowski-Mira transform. Play around with it for a while and I’m sure you’ll agree. Sometimes it takes quite a number of iterations before enough points have accumulated to manifest anything interesting, so be patient.

Click image to start the applet

Peter de Jong attractor redux

Thor Frølich — Fri, 15 May 2009 11:24:30 +0000

I’ve been spending a little time on my attractor applet to improve it (and improvement was indeed direly needed). Now it’s possible to reparameterize by holding left mouse button and moving the mouse. That will produce a live preview. Releasing the mouse once a desired shape is arrived at will render said shape using a large number of iterations.

Antialiasing is done using a logarithmic density map to control brightness and by fuzzing coordinates a bit using random(). I’ve still to implement blending of single pixels hit by more than one color to reduce the current flipping during rendering.

Click image for the updated attractor applet

Particle Flow Field

Thor Frølich — Sun, 15 Mar 2009 22:18:57 +0000

Continuing my dabbling in particles I’ve now created a flow field for them to move in. You know, to entertain the little critters. It’s fascinating how these flow fields acting on the particles give them the appearance of having flocking behaviour, with much less computational overhead (at least for non-quad tree optimized particles). Don’t look at the code. Your eyes might melt.

Click here for flow field applet

Particle Ink

Thor Frølich — Mon, 09 Mar 2009 21:21:31 +0000

I’ve updated my aforementioned particle class, so it can now iterate through an array of attractors. Pretty simple stuff, but it can yield some interesting visuals when a few randomly placed attractors act on the particles. The code isn’t pretty and it will likely run slowly on older machines due to the high number of particles. I probably should look into a more efficient way than just running every single particle against the full array of attractors.

Click here for the applet

Peter de Jong attractor

Thor Frølich — Wed, 18 Feb 2009 08:40:02 +0000

de Jong attractor

For a long time I’ve been fascinated by visualization of complex data and math. This fetish of mine led me to discover Processing, a programming language based on java with the explicit purpose of visualizing … stuff. Now, I’ve never been much of a programmer, but I decided to try a dabble a little with this and it turns out you can a lot with scripting. Below’s my third creation, the first and second being a rather dull perlin noise ribbon and a fibonacci spiral. Perhaps I will figure out something fun to with those later.