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root/radiance/ray/src/rt/ambient.c
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Comparing ray/src/rt/ambient.c (file contents):
Revision 1.4 by greg, Tue May 30 11:06:29 1989 UTC vs.
Revision 1.7 by greg, Tue Sep 5 09:46:17 1989 UTC

# Line 203 | Line 203 | double  s;
203                   *  Jittering final test reduces image artifacts.
204                   */
205                  wt = sqrt(e1) + sqrt(e2);
206 <                if (wt > ambacc*(0.9 + 0.2*frandom()))
206 >                wt *= .9 + .2*frandom();
207 >                if (wt > ambacc)
208                          continue;
209                  if (wt <= 1e-3)
210                          wt = 1e3;
# Line 381 | Line 382 | register RAY  *r;
382                  dnew.n = div[0].n + 1;
383                  dnew.t = div[0].t; dnew.p = div[0].p;
384                  b2 = bright(dnew.v)/dnew.n - bright(ar.rcol);
385 <                b2 = b2*b2 + div[0].k*div[0].n;
386 <                dnew.k = b2/dnew.n;
385 >                b2 = b2*b2 + div[0].k*(div[0].n*div[0].n);
386 >                dnew.k = b2/(dnew.n*dnew.n);
387                                                  /* reinsert */
388                  for (k = 0; k < ne-1 && dnew.k < div[k+1].k; k++)
389                          bcopy(&div[k+1], &div[k], sizeof(AMBSAMP));

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