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News

2013-04-24 - More Flash / AS3

2013-02-28 - The Cult Of Done Manifesto

2012

2011

2010

2009

2008

2008-11-24 - Bloom released

2008-11-06 - More Whiskey Sessions madness...

2008-10-29 - "Almost snowing in Oslo" or "I met the wizard"

2008-10-17 - Meeting with Trygve Reenskaug

2008-10-16 - Thanks to everyone who showed up for the Haket gig!

2008-09-25 - GameMaker in Arvika / working on a new hUb

2008-08-28 - new music gear

2008-08-01 - quaternion madness...

In the relatively brief time (about 2 years) I've seriously been messing around with 3d graphics, I have never yet had the need to learn about the mystical quaternion. That is, until today...

I'm working on a project that has gradually been forcing me to realize that I needed to treat coordinate spaces in a uniform way, and make no assumptions about the axes that made up these systems. Almost needless to say, thinking in terms of Euler angles and rotations about cardinal axes made a mess of the whole system.

So, I "googled it" and quickly found a really nice and simple paper that just tells you how to rotate a point around an arbitrary axis, without actually explaining the theory or deriving the proofs. It just tells you how to do it, with an example. You gotta dig that :)

2008-08-01 - johno and hObbE in Emil-O-Rama

My esteemed colleague Tobias 'hObbE' Olsson and I were interviewed this week for the podcast show Emil-O-Rama, which focuses on indie game development. We talk about Spell of Play Studios and our ideas about game development.

Check out Emil-O-Rama, which is a part of Spelradion, here. A direct mp3 download of the podcast episode (which is in swedish) is here.

2008-07-27 - IMGUI test

2008-07-27 - preparing multiplayer/networking course

2008-07-26 - recent software development


 contact: johno(at)johno(dot)se