Just recently I rediscovered Maya’s own matchmoving capability. Last time I tried it was back in 2001 and its lack of automatic tracking was the reason I left it alone. But what if I had a low enough number of good markers, could it be done in Maya? Yes! I was really surprised to be able to track this clip in less than 10 minutes and with good result.
Anyhow, I imagine that a Kangosaur guarding your keyboard should keep most intruders at bay
