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root/radiance/ray/src/util/rfluxmtx.c
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Comparing ray/src/util/rfluxmtx.c (file contents):
Revision 2.44 by greg, Thu Apr 13 22:47:17 2017 UTC vs.
Revision 2.45 by greg, Sat May 13 01:50:54 2017 UTC

# Line 760 | Line 760 | sample_reinhart(PARAMS *p, int b, FILE *fp)
760          }
761          while (n--) {                   /* stratified sampling */
762                  SDmultiSamp(samp3, 3, (n+frandom())/sampcnt);
763 +                if (row >= RowMax-1)    /* avoid crowding at zenith */
764 +                        samp3[1] *= samp3[1];
765                  alt = (row+samp3[1])*RAH;
766                  azi = (2.*PI)*(col+samp3[2]-.5)/rnaz(row);
767                  duvw[2] = cos(alt);     /* measured from horizon */
768                  duvw[0] = tsin(azi)*duvw[2];
769 <                duvw[1] = tcos(azi)*duvw[2];
769 >                duvw[1] = -tcos(azi)*duvw[2];
770                  duvw[2] = sqrt(1. - duvw[2]*duvw[2]);
771                  for (i = 3; i--; )
772                          orig_dir[1][i] = -duvw[0]*p->udir[i] -

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