Learning dot products by implementing a backstab mechanic a la TF2. There's also a few videos on vector manipulation since I posted last, you can view them from the MFGD Youtube playlist: http://www.youtube.com/playlist?list=PLW3Zl3wyJwWOpdhYedlD-yCB7WQoHf-My&feature=view_all
Enjoy!
Neat videos, straightforward and informative! Wish I had them when I started out. I guess cross product will come next? =)
OT. What program do you use for video capture?