3 ms·

Unity uses quats in its object transforms?

• nox101 3y ago
  But not in it's animation data, at least not by default You key euler angles, it lerps euler angles for animation values, it then generates a quaternion the given the current value of the euler angles. Same for Unreal AFAIK
  • hamish_todd 3y ago
    Where in the docs does it say that? Euler angle lerps, in the general case (eg none of the starts or ends are 0), look like complete shit. You need the log quat representation. Exp( Tlog(q1/q0) ) q0
    • nox101 3y ago
      > When interpolating between two rotations, the interpolation can either be performed on the Quaternion values or on the Euler Angles values. from: https://docs.unity3d.com/2023.3/Documentation/Manual/animeditor-AnimationCurves.html https://docs.unity3d.com/2023.3/Documentation/Manual/animedi... The default is Euler values
      • hamish_todd 3y ago
        From that page: "When Euler Angles interpolation is used, Unity internally bakes the curves into the Quaternion representation used internally. This is similar to what happens when importing animation into Unity from external programs"