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root/radiance/ray/src/rt/rtrace.c
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Comparing ray/src/rt/rtrace.c (file contents):
Revision 2.101 by greg, Tue Feb 16 22:06:00 2021 UTC vs.
Revision 2.102 by greg, Fri Apr 16 16:31:35 2021 UTC

# Line 52 | Line 52 | int  castonly = 0;                     /* only doing ray-casting? */
52   #endif
53   OBJECT  traset[MAXTSET+1]={0};          /* trace include/exclude set */
54  
55 + static int  Tflag = 0;                  /* source tracing enabled? */
56 +
57   static RAY  thisray;                    /* for our convenience */
58  
59   static FILE  *inpfp = NULL;             /* input stream pointer */
# Line 119 | Line 121 | formstr(                               /* return format identifier */
121   }
122  
123  
124 + static void
125 + trace_sources(void)                     /* trace rays to light sources, also */
126 + {
127 +        int     sn;
128 +
129 +        for (sn = 0; sn < nsources; sn++)
130 +                source[sn].sflags |= SFOLLOW;
131 + }
132 +
133 +
134   void
135   rtrace(                         /* trace rays from file */
136          char  *fname,
# Line 148 | Line 160 | rtrace(                                /* trace rays from file */
160                                          /* set up output */
161          if (castonly || every_out[0] != NULL)
162                  nproc = 1;              /* don't bother multiprocessing */
163 +        if (Tflag && every_out[0] != NULL)
164 +                trace_sources();        /* asking to trace light sources */
165          if ((nextflush > 0) & (nproc > nextflush)) {
166                  error(WARNING, "reducing number of processes to match flush interval");
167                  nproc = nextflush;
# Line 217 | Line 231 | rtrace(                                /* trace rays from file */
231   }
232  
233  
220 – static void
221 – trace_sources(void)                     /* trace rays to light sources, also */
222 – {
223 –        int     sn;
224 –        
225 –        for (sn = 0; sn < nsources; sn++)
226 –                source[sn].sflags |= SFOLLOW;
227 – }
228 –
229 –
234   int
235   setrtoutput(void)                       /* set up output tables, return #comp */
236   {
# Line 241 | Line 245 | setrtoutput(void)                      /* set up output tables, return #c
245          do
246                  switch (*vs) {
247                  case 'T':                               /* trace sources */
248 <                        if (!vs[1]) break;
245 <                        trace_sources();
248 >                        Tflag++;
249                          /* fall through */
250                  case 't':                               /* trace */
251                          if (!vs[1]) break;

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