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Sorry, **Waterfall**, I had to leave yesterday on business. There's a strange thing with the rotation; so far, the only thing I've been able to figure out through experimentation is:
z/x/y = 1; w = 0 — rotation by 180 degrees
z/x/y = 0.707, w = 0.707 — rotation by 90 degrees (rotation by 270 is a rotation by -90 degrees).
When rotating around one axis, the values obviously lie within the corresponding ranges, e.g., 0.8, w=0.8.
I haven't been able to get any data for rotating around several axes at once; if anyone knows and is willing to share, I would be very grateful.