makeRotationFromQuaternion( q ) {

		return this.compose( _zero, q, _one );

	}
Sets the rotation component of this matrix to the rotation specified by
the given Quaternion as outlined [here]{@link https://en.wikipedia.org/wiki/Rotation_matrix#Quaternion}
The rest of the matrix is set to the identity.

@param {Quaternion} q - The Quaternion.
@return {Matrix4} A reference to this matrix.