Returns the difference between two quaternions.
Original signature is 'GLKQuaternion GLKQuaternionSubtract ( GLKQuaternion quaternionLeft, GLKQuaternion quaternionRight );'
Available in OS X x0.8 and later.
public static GLKQuaternion Subtract (GLKQuaternion quaternionLeft, GLKQuaternion quaternionRight) { GLKQuaternion q = new GLKQuaternion (quaternionLeft.x - quaternionRight.x, quaternionLeft.y - quaternionRight.y, quaternionLeft.z - quaternionRight.z, quaternionLeft.w - quaternionRight.w); return q; } }