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root/radiance/ray/src/rt/ambient.c
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Comparing ray/src/rt/ambient.c (file contents):
Revision 2.74 by greg, Sat Apr 19 02:39:44 2014 UTC vs.
Revision 2.76 by greg, Wed Apr 23 06:04:18 2014 UTC

# Line 398 | Line 398 | sumambient(            /* get interpolated ambient value */
398                  delta_t2 = d*d;
399                  d = DOT(ck0, uvw[1]) / av->rad[1];
400                  delta_t2 += d*d;
401 <                if (delta_t2 >= ambacc*ambacc)
401 >                if (delta_t2 >= qambacc*qambacc)
402                          continue;
403                  /*
404                   *  Intersection behind test
# Line 413 | Line 413 | sumambient(            /* get interpolated ambient value */
413                   */
414                  extambient(ct, av, r->rop, rn, uvw);
415                  d = tfunc(maxangle, sqrt(delta_r2), 0.0) *
416 <                        tfunc(ambacc, sqrt(delta_t2), 0.0);
416 >                        tfunc(qambacc, sqrt(delta_t2), 0.0);
417                  scalecolor(ct, d);
418                  addcolor(acol, ct);
419                  wsum += d;
# Line 461 | Line 461 | makeambient(           /* make a new ambient value for storage
461                                                  /* compute ambient */
462          i = doambient(acol, r, amb.weight, uvw, amb.rad, amb.gpos, amb.gdir);
463          scalecolor(acol, 1./AVGREFL);           /* undo assumed reflectance */
464 <        if (i <= 0)                             /* no Hessian => no storage */
464 >        if (i <= 0 || amb.rad[0] <= FTINY)      /* no Hessian or zero radius */
465                  return(i);
466                                                  /* store value */
467          VCOPY(amb.pos, r->rop);

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