Top "Quaternions" questions

Unit quaternions are a mathematical representation of 3D rotations.

Finding quaternion representing the rotation from one vector to another

I have two vectors u and v. Is there a way of finding a quaternion representing the rotation from u …

math vector quaternions
Difference between the two quaternions

Solved I'm making a 3D portal system in my engine (like Portal game). Each of the portals has its own …

math rotation quaternions portal-system
Extracting Yaw from a Quaternion

I have a rotation quaternion and want to extract the angle of rotation about the Up axis (the yaw). I …

math xna quaternions
Convert Quaternion rotation to rotation matrix?

Basically, given a quaterion (qx, qy, qz, qw)... How can i convert that to an OpenGL rotation matrix? I'm also …

opengl graphics matrix quaternions
Euler to Quaternion / Quaternion to Euler using Eigen

I'm trying to implement a functionality that can convert an Euler angle into an Quaternion and back "YXZ"-convention using …

c++ eigen quaternions euler-angles
Euler angle to Quaternion then Quaternion to euler angle

I'm using lib glm (http://glm.g-truc.net/) for test quaternion but I've a problem; when I convert euler angle …

c++ math rotation quaternions euler-angles
Why are quaternions used for rotations?

I'm a physicist, and have been learning some programming, and have come across a lot of people using quaternions for …

matrix 3d quaternions rotational-matrices
'Difference' between two quaternions

I'm working in Ogre, but it's a general quaternion problem. I have an object, to which I apply a rotation …

math ogre3d quaternions
quaternion libraries in C/C++

Any good libraries for quaternion calculations in C/C++ ? Side note: any good tutorials/examples? I've google it and been …

c++ math quaternions
Quaternion and normalization

I know that quaternions need to be normalized if I want to rotate a vector. But are there any reasons …

normalization quaternions