Hi all, I'm trying to 'add' two angles in 3D spherical coords. The problem is easy enough in 2D polar coords. You just add Angle A to Angle B (both in the Z plane of course). However, there doesn't seem to be an easy 3D equivalent. Let's use this example: Point A is: Rot x: 0 (degrees) Rot z: 90 Radius: 1 Point B is: Rot x: 90 Rot z: 0 Radius: 1 In cartesian format, these points A & B translate to 0,1,0 and 0,0,1 respectively. How do I 'add' these angles together? Any solutions I've found seem to arrive at answer that is still at Point A or Point B, rather than a different position.