Quaternion Problems

jimnovy · 2004-08-09T04:39:25

Hi there, I'm attempting to use quaternions for the rotation of ships in a 3d Descent-like game. Here's the issue I'm having: I rotate/multiply/whatever the quaternion, turn it into a matrix, apply it as the viewpoint, and then translate the viewpoint back back with no problems, but when I then apply the matrix a second time to align the player's ship with the camera, it adds to the rotation instead of negating it. I've tried rotating a second quaternion in the opposite direction and applying that, but that doesnt seem to help much except while rotating about a vertical axis. As soon as a roll, or try to pitch up it screws up. I don't really understand the math too well, and can't seem to figure much out from the gamedev articles, so if you could either point out a flaw in my thinking or point me to an example/tutorial of some sort I would greatly appreciate it. Thanks, Jim

Math and Physics Programming

Started by jimnovy August 05, 2004 08:12 PM

9 comments, last by __Daedalus__ 19 years, 8 months ago

__Daedalus__

480

August 09, 2004 04:39 AM

I am not an expert on this but are you using a left handed system? I think quaternions are right handed so you may need to take the inverse of it to make it left handed (if that's applicable).

Quaternion Problems

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Quaternion Problems

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