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root/Development/ray/src/rt/raytrace.c
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Comparing ray/src/rt/raytrace.c (file contents):
Revision 2.6 by greg, Tue May 25 10:30:01 1993 UTC vs.
Revision 2.8 by greg, Thu Dec 9 09:34:08 1993 UTC

# Line 105 | Line 105 | RAY  *r;
105   raycont(r)                      /* check for clipped object and continue */
106   register RAY  *r;
107   {
108 <        if (r->clipset != NULL && inset(r->clipset, r->ro->omod))
108 >        if ((r->clipset != NULL && inset(r->clipset, r->ro->omod)) ||
109 >                        r->ro->omod == OVOID)
110                  raytrans(r);
111          else
112                  rayshade(r, r->ro->omod);
# Line 330 | Line 331 | register CUBE  *scene;
331          sflags = 0;
332          for (i = 0; i < 3; i++) {
333                  curpos[i] = r->rorg[i];
334 <                if (r->rdir[i] > FTINY)
334 >                if (r->rdir[i] > 1e-7)
335                          sflags |= 1 << i;
336 <                else if (r->rdir[i] < -FTINY)
336 >                else if (r->rdir[i] < -1e-7)
337                          sflags |= 0x10 << i;
338          }
339          if (sflags == 0)
# Line 463 | Line 464 | OBJECT  *cxs;
464          checkset(oset, cxs);                    /* eliminate double-checking */
465          for (i = oset[0]; i > 0; i--) {
466                  o = objptr(oset[i]);
466 –                if (o->omod == OVOID && issurface(o->otype))
467 –                        continue;               /* ignore void surfaces */
467                  (*ofun[o->otype].funp)(o, r);
468          }
469          if (r->ro == NULL)

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