I'm putting together an augmented reality app in Processing that needs to recognise two different AR markers. 

I've got a demo up and running using SimpleARToolkit, which only supports one marker. I also found MultiARToolkit, which is a modified version of the library, that works great for multiple markers but seems really really wobbly and jittery compared to the standard library.

My app doesn't however need to see both markers at the same time, I just need to look at one or the other at once, not both. 

I'm working on the assumption that it might be easier to stick with SimpleARToolkit and somehow register two markers for detection, as they don't need to be simultaneously viewable... Does anyone have any experience with this kind of thing? 

Any suggestions/examples would be massively appreciated. :)

Dan

http://blog.danhett.com