Pens from Jeremy Burns https://codepen.io/jaburns/ en nospam@codepen.io Copyright 2024 2015-08-24T05:30:06-07:00 Black Fire https://codepen.io/jaburns/pen/GJVZPE https://codepen.io/jaburns/pen/GJVZPE Jeremy Burns

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Classic demoscene fire effect.

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Black Fire 2015-08-24T05:30:06-07:00
Unicycle https://codepen.io/jaburns/pen/eYKBRz https://codepen.io/jaburns/pen/eYKBRz Jeremy Burns

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A little unicycle you can drive back and forth with A/D or Left/Right. Concept for a game I'm working.

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Unicycle 2014-08-20T04:53:54-07:00
Minimal Rotating Column https://codepen.io/jaburns/pen/DOEQBz https://codepen.io/jaburns/pen/DOEQBz Jeremy Burns

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Some minimal code which creates a rotating column by resizing and restyling 2 adjacent HTML elements.

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Minimal Rotating Column 2013-10-18T06:20:51-07:00
Clouds https://codepen.io/jaburns/pen/DygbrN https://codepen.io/jaburns/pen/DygbrN Jeremy Burns

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Four octaves of 2D noise composed over time to create a cloudy sky. The noise is smooth-scaled random values rather than Perlin for simplicity and speed sake.

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Clouds 2013-05-14T04:23:06-07:00
Primes https://codepen.io/jaburns/pen/kPWpqN https://codepen.io/jaburns/pen/kPWpqN Jeremy Burns

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A super tiny implementation of the sieve of Eratosthenes in Javascript.

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Primes 2013-05-22T06:09:29-07:00
Psychedelic Tunnel https://codepen.io/jaburns/pen/njyWWG https://codepen.io/jaburns/pen/njyWWG Jeremy Burns

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This is a GLSL shader rendered to a quad using WebGL.

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Psychedelic Tunnel 2013-05-13T02:58:52-07:00
Blobs in 1k https://codepen.io/jaburns/pen/nORzNx https://codepen.io/jaburns/pen/nORzNx Jeremy Burns

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Some meta-balls implemented on a canvas in 1 kilobyte of Javascript according to JS1K.com rules. (minified by hand)

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Blobs in 1k 2013-04-11T06:48:33-07:00
Rope https://codepen.io/jaburns/pen/AqdVqr https://codepen.io/jaburns/pen/AqdVqr Jeremy Burns

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Play around with a piece of rope using the mouse. Implemented as a simple 2D constraint solver.

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Rope 2012-12-11T23:02:51-07:00
Canvas Sphere https://codepen.io/jaburns/pen/nPqjjy https://codepen.io/jaburns/pen/nPqjjy Jeremy Burns

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Draws a lit, textured, rotating sphere pixel by pixel on a canvas. No external libraries used, just straight 2D canvas pixel manipulation.

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Canvas Sphere 2012-12-07T22:43:31-07:00