Who *actually* understood Quaternions for real? I can work with them, but I never quite really understood them.
Can someone point me to a good resource that explain them, well, intuitively?
Math for Game Programmers: Understanding Quaternions

Over the past ten years the complexity of many games has increased, and with that so has the knowledge needed to create them. Creating the latest code for graphics, animation, physical simulation, even to some extent artificial intelligence...

@GDCPresoReviews Oh thanks! I didn't know that. I have his book ;)