DIST

THE BOX'S MAIN HELP:

This is the length of the ray from its origin, state->org,
to the current intersection point on the surface, state->point.  
If there is no intersection, the length is infinite, 
a zero or a negative is returned.

DIST (output):

This is the length of the ray from its origin, state->org,
to the current intersection point on the surface, state->point.  
If there is no intersection, the length is infinite, 
a zero or a negative is returned.

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