43oasis <43o### [at] orangefr> wrote:
> I wonder how the rendering of the SOR can vary with the distance of the
> observer,
> and, more specifically, be wrong only within a certain interval of
> distances/orientations ...

  It probably has to do with the algorithm by which it's calculated and
the limited accuracy of floating point numbers (although I can't say this
with certainty without knowing the specifics).

-- 
                                                          - Warp

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