libgdx/libgdx — pull request #126 by caniep (2012-11-26 11:18:04+00:00)
Title: Matrix4/Quaternion saving some cpu cycles on rotations

1. Setting identity first on Matrix4.setToRotation/setFromEulerAngles is redundant because values are overwritten when setting from quaternion.
2. Some multiplications can be saved on Quaternion.setEulerAngles