flypig.co.uk

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Welcome

I'm David Llewellyn-Jones and this is my homepage. I'm a researcher in network security who's also interested in programming and graphics. You might be interested in my research, my software or my random musings.

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News

17 Apr 2015 : Back from 2006 #
Yesterday an unexpected server upgrade caused my website to drop back to what it looked like in 2006, which was more than a little disconcerting. After a bit of panic today, and with the help of my hosting provider we've now got the site back to the future again and into its 2015 state. Phew!
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12 Apr 2015 : Twitter name change #
I've just changed my twitter name to flypigahoy. Now I get to slowly find all of the places I've linked to twitter from!
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1 Apr 2015 : Shadertoy API testing #
There's now a page where you can test the shaders from Shadertoy.com with shaderback.js. Only shaders not reliant on channel inputs will work, so you may need to click through a few before finding one that renders correctly.
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21 Mar 2015 : Shadertoy to shaderback #
It turns out many of the shaders on Shadertoy (at least those not using channel inputs) can be used by shaderback.js with surprisingly little conversion. Take a look at this really rather amazing example by Inigo Quilez.
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21 Mar 2015 : Shaderback.js is go #
There don't appear to have been any ill-effects from using shaderback.js, so the default is now to have the animated background enabled. It can still be removed if needs-be. The lack of abstraction using GPU code on the Web is really refreshing; it feels like the '90s, poking colour values direct into the screenbuffer again!
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