I've got a remark/question regarding this code:

This should yield the same result as max(abs(x), abs(y), abs(z)) > d as referenced in:

However I don't think this is the case.

Take for example d = 10 and a coordinate of x = 9, y = 7 and z = 0.

The result of max(abs(9), abs(7), abs(0)) is 9, which is smaller than d (= 10).

However, the result of 9 | 7 | 0 is 15, which is not smaller than d.

These calculations are therefore not equal. Maybe you meant to write something diffently here? Or is my assessment wrong?

Hope to hear from you,
Jomy