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root/radiance/ray/src/rt/raytrace.c
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Comparing ray/src/rt/raytrace.c (file contents):
Revision 2.3 by greg, Tue Jan 26 09:28:00 1993 UTC vs.
Revision 2.4 by greg, Tue Feb 23 13:57:11 1993 UTC

# Line 461 | Line 461 | OBJECT  *cxs;
461          checkset(oset, cxs);                    /* eliminate double-checking */
462          for (i = oset[0]; i > 0; i--) {
463                  o = objptr(oset[i]);
464 +                if (o->omod == OVOID && issurface(o->otype))
465 +                        continue;               /* ignore void surfaces */
466                  (*ofun[o->otype].funp)(o, r);
467          }
468          if (r->ro == NULL)

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