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root/radiance/ray/src/rt/source.c
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Comparing ray/src/rt/source.c (file contents):
Revision 2.83 by greg, Sat Nov 9 15:21:32 2024 UTC vs.
Revision 2.86 by greg, Sat Jan 18 03:49:00 2025 UTC

# Line 216 | Line 216 | freesources(void)                      /* free all source structures */
216  
217  
218   int
219 < srcray(                         /* send a ray to a source, return domega */
220 <        RAY  *sr,               /* returned source ray */
221 <        RAY  *r,                        /* ray which hit object */
219 > srcray(                         /* aim a ray at a source, return domega */
220 >        RAY  *sr,               /* prepared source ray */
221 >        RAY  *r,                        /* originating ray (or NULL) */
222          SRCINDEX  *si                   /* source sample index */
223   )
224   {
# Line 231 | Line 231 | srcray(                                /* send a ray to a source, return domega */
231                  sr->rmax = 0.0;
232  
233          while ((d = nextssamp(sr, si)) != 0.0) {
234 <                sr->rsrc = si->sn;                      /* remember source */
234 >                sr->rsrc = si->sn;              /* remember source */
235                  srcp = source + si->sn;
236                  if (srcp->sflags & SDISTANT) {
237                          if (srcp->sflags & SSPOT && spotout(sr, srcp->sl.s))
# Line 603 | Line 603 | srcscatter(                    /* compute source scattering into ray */
603                          sr.rorg[2] = r->rorg[2] + r->rdir[2]*t;
604                          
605                          if (!volumePhotonMapping) {
606 <                                if (srcskip(r->slights[i], r))
606 >                                sr.parent = r;          /* hack for preemptive test */
607 >                                if (srcskip(r->slights[i], &sr))
608                                          continue;
609                                  initsrcindex(&si);      /* sample ray to this source */
610                                  si.sn = r->slights[i];

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