all right.  thanks everyone for replying to that and actively mulling it
over.  it sounds like someone with enough knowledge could hack out a patch
to fix the errors if they cared too.  i've got the motivation but,
unfortunately, not the knowhow.  so while i wait for circumstance to pan
out, does anyone know of any other software, commercial or otherwise, that
can ray trace quaternion or hypercomplex julia sets and do other general
raytracing things like euclidean primitives and csg?
thanks a bunch.
michael

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