Ron Parker <ron### [at] povrayorg> wrote:
: Get a copy of the source and read lathe.c, specifically the comments at the
: top of the file and the Compute_Lathe function.

  Yes, it explains how to calculate the intersection of a ray with the lathe
but it doesn't explain how to draw a quadratic spline curve.

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

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