Tor Andersson c40b767016 Matrix to Quaternion conversion precision fix. ...

See below links for reasoning, but in short, avoid sqrt and division
of small values. It's also possible to normalize the quaternion after
the conversion, but better precision is preferable.

http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm
http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/ethan.htm

2012-11-28 13:02:51 +01:00

..

assimp

Matrix to Quaternion conversion precision fix.

2012-11-28 13:02:51 +01:00