BTW: use the following keys to control rotations of the sphere and the light:
Sphere:
+ - Axis
==========
A, Z x
S, X y
D, C z
Light Source:
+ - Axis
==========
F, V x
G, B y
H, N z
Sphere:
+ - Axis
==========
A, Z x
S, X y
D, C z
Light Source:
+ - Axis
==========
F, V x
G, B y
H, N z