Generating spherical and hyperbolic tilings in GLSL
Posted on Sat 06 January 2018 in misc
Folding Animated Hyperbolic & Spherical Tilings
Posted on Wed 12 April 2017 in misc
3D Kaleidoscopic Fractals: Folding the Koch Snowflake
How to fold space into a Koch snowflake.
Continue readingBuilding Escher's Square Limit in Pixels
Posted on Sat 31 December 2016 in misc
Infinite Regression: Many Pictures From One Function
Posted on Wed 20 July 2016 in misc
Imitating a variety of Escherian limit tilings, as well as a squared-up Droste, by manipulating a simple function.
Continue readingDrawing fractal Droste images
When I was researching Droste images for a previous post, I occasionally came across strange versions which depicted multiple spirals, rather than the customary single spiral, like this one by David Pearson. This led me down a rabbit hole to understand what is actually going on in these images, and to see what I could make with the effect.
Continue readingFun with interference patterns
Posted on Wed 04 May 2016 in misc
Ordinary trigonometric functions can produce really interesting, structured patterns if you use sufficiently large numbers.
Continue readingRecreating the Doctor Who Time Tunnel in GLSL
Posted on Wed 27 April 2016 in glsl • Tagged with drwho, glsl
The slit-scan effect is a classic analog special effect used in the "Stargate" sequence in 2001: A Space Odyssey, and a title sequence in Doctor Who. It turns out this effect is absolutely begging to be implemented as a WebGL fragment shader, and the transformation can be done in only a few lines of code!
Continue readingImplementing the Droste effect in WebGL
Posted on Mon 25 April 2016 in glsl
The Droste effect is a name given to pictures that contain themselves, like an infinite series of nesting dolls. The conventional Droste effect is interesting, but it was taken to new heights by M.C. Escher's "Print Gallery." I wanted to understand how Escher's Print Gallery effect actually worked, and implement it myself.
Continue reading