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root/radiance/ray/src/common/tonemap.c
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Comparing ray/src/common/tonemap.c (file contents):
Revision 3.43 by greg, Fri Feb 5 01:07:28 2021 UTC vs.
Revision 3.44 by greg, Wed Feb 24 03:48:52 2021 UTC

# Line 460 | Line 460 | double Ldmax
460          float   *cumf;
461          int     brt0, histlen;
462          HIST_TYP        threshold, ceiling, trimmings, histot;
463 <        double  logLddyn, Ldmin, Ldavg, Lwavg, Tr, Lw, Ld;
463 >        double  logLddyn, Ldmin, Lwavg, Tr, Lw, Ld;
464          double  sum;
465          double  d;
466          int     i, j;
# Line 474 | Line 474 | double Ldmax
474                                          /* compute handy values */
475          Ldmin = Ldmax/Lddyn;
476          logLddyn = log(Lddyn);
477 –        Ldavg = sqrt(Ldmax*Ldmin);
477          i = HISTI(tms->hbrmin);
478          brt0 = HISTV(i);
479          histlen = HISTI(tms->hbrmax) + 1 - i;
# Line 548 | Line 547 | double Ldmax
547          returnOK;
548   linearmap:                              /* linear tone-mapping */
549          if (tms->flags & TM_F_HCONTR)
550 <                d = htcontrs(Ldavg) / htcontrs(Lwavg);
550 >                d = htcontrs(sqrt(Ldmax*Ldmin)) / htcontrs(Lwavg);
551          else
552 <                d = Ldavg / Lwavg;
552 >                d = Ldmax / tmLuminance(tms->hbrmax);
553          return(tmFixedMapping(tms, tms->inpsf*d/Ldmax, gamval));
554   }
555  

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