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Comparing ray/src/rt/rcontrib.c (file contents):
Revision 2.32 by greg, Wed Jun 13 21:23:45 2018 UTC vs.
Revision 2.35 by greg, Sun Apr 7 16:39:39 2019 UTC

# Line 21 | Line 21 | int    dimlist[MAXDIM];                /* sampling dimensions */
21   int     ndims = 0;                      /* number of sampling dimensions */
22   int     samplendx = 0;                  /* index for this sample */
23  
24 < void    (*trace)();
24 > void    (*trace)() = NULL;              /* trace call (NULL before rcinit) */
25  
26   int     do_irrad = 0;                   /* compute irradiance? */
27  
# Line 281 | Line 281 | eval_irrad(FVECT org, FVECT dir)
281          thisray.rmax = 0.0;
282          rayorigin(&thisray, PRIMARY, NULL, NULL);
283                                          /* pretend we hit surface */
284 <        thisray.rt = thisray.rot = 1e-5;
284 >        thisray.rxt = thisray.rot = 1e-5;
285          thisray.rod = 1.0;
286          VCOPY(thisray.ron, dir);
287          VSUM(thisray.rop, org, dir, 1e-4);

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