The headset prototype graveyard

I’m still following the dream of a super-lightweight non-environmentally shitty, shippable by envelope headset design based on Google Cardboard. The other approaches to google cardboard that I’ve seen rely on glue or really lame tabs. It’s not stable enough to support a camera without using very thick card, and it makes self assembly irritating. After…

Exporting multiple layers in Inkscape – streamlining the headset design

Until now I had a very heavyweight process for specifying the headset for eyeskills, using OpenScad and lots of geometry. Now that I’m gradually working my way back into the project with new ideas and some fresh motivation, I want to streamline this dramatically so I don’t get bogged down in tool chain hell again.…

Affordable EyeTracking – working towards a new camera PCB

We keep coming back to the basic fact that we need to know what the eyeballs are doing. This requires an eye tracker which does what we want (particularly, with a software API which doesn’t assume both eyes are coordinating in the usual way!) at a price we can afford. The corollary to this is…

When Unity UI Goes bad – The perils of DontDestroyOnLoad

This is quick note about a really obscure problem which can bite you quite hard in unity. If you switch between scene you may need to use DontDestroyOnLoad to keep certain objects hanging around during and after the transition. If, however, you have stored collections of scripts under empty game objects – and there should…

Lets laser cut some headsets!

Over at eyetracktive.org you can see the results of some early experiments in creating the world’s most affordable eye tracking headset. The idea is to make this compatible with off the shelf google cardboard headsets. One constantly underestimated problem, however, is that people have quite differently shaped heads, and eye positions. I find it obnoxious…