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root/radiance/ray/src/rt/aniso.c
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Comparing ray/src/rt/aniso.c (file contents):
Revision 2.43 by greg, Tue Apr 19 01:15:06 2005 UTC vs.
Revision 2.44 by greg, Fri May 7 17:45:57 2010 UTC

# Line 167 | Line 167 | diraniso(              /* compute source contribution */
167                  } else
168                          dtmp = 0.0;
169                                                  /* gaussian */
170 <                dtmp = exp(-dtmp) / (PI * np->pdot * sqrt(au2*av2));
170 >                dtmp = exp(-dtmp) * (1.0/PI) * sqrt(-ldot/(np->pdot*au2*av2));
171                                                  /* worth using? */
172                  if (dtmp > FTINY) {
173                          copycolor(ctmp, np->mcolor);

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