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root/radiance/ray/src/rt/aniso.c
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Comparing ray/src/rt/aniso.c (file contents):
Revision 2.66 by greg, Fri Dec 6 01:34:21 2024 UTC vs.
Revision 2.68 by greg, Fri Dec 20 16:29:50 2024 UTC

# Line 118 | Line 118 | diraniso(              /* compute source contribution */
118                   */
119                                                  /* add source width if flat */
120                  if (np->specfl & SP_FLAT)
121 <                        au2 = av2 = omega * (0.25/PI);
121 >                        au2 = av2 = (1. - dstrsrc) * omega * (0.25/PI);
122                  else
123                          au2 = av2 = 0.0;
124                  au2 += np->u_alpha*np->u_alpha;
# Line 265 | Line 265 | m_aniso(                       /* shade ray that hit something anisotropic
265                                                  /* diffuse reflection */
266          nd.rdiff = 1.0 - nd.trans - nd.rspec;
267  
268 <        if (r->ro != NULL && isflat(r->ro->otype))
268 >        if (r->ro != NULL && isflat(r->ro->otype) &&
269 >                        DOT(r->pert,r->pert) <= FTINY*FTINY)
270                  nd.specfl |= SP_FLAT;
271  
272          getacoords(&nd);                        /* set up coordinates */

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