Thread: 3D rotation problem, help please!

Originally Posted by GOBLIN-85

Thank you both for the advice. I've decided to just use Quaternion to rotate the ship, i.e. when a key pressed, just rotate the ship by certain amount without adding force.

However it is still a problem to me, as the quaternion of the ship is easy to get, how do I get the new quaternion that will be used to rotate the ship? Could you give me an example please?

Thanks.

Quaternions have the axis and a rotation angle, so presumably if you know how much you want to rotate by, then you're done.

Note that rotations (whether by quaternions or any other method) are not absolute; if you've done a rotation, then further rotations will be done with respect to the new axes, not some theoretical "absolute x-y-z".