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root/Development/ray/src/rt/srcsamp.c
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Comparing ray/src/rt/srcsamp.c (file contents):
Revision 1.5 by greg, Wed Oct 23 08:50:06 1991 UTC vs.
Revision 2.2 by greg, Mon Nov 25 09:52:49 1991 UTC

# Line 24 | Line 24 | register SRCINDEX  *si;                /* source index (modified to
24          FVECT  vpos;
25          double  d;
26          register int  i;
27 <
27 > nextsample:
28          while (++si->sp >= si->np) {    /* get next sample */
29                  if (++si->sn >= nsources)
30                          return(0.0);    /* no more */
31 <                if (srcsizerat <= FTINY)
31 >                if (source[si->sn].sflags & SSKIP)
32 >                        si->np = 0;
33 >                else if (srcsizerat <= FTINY)
34                          nopart(si, r);
35                  else {
36                          for (i = si->sn; source[i].sflags & SVIRTUAL;
# Line 74 | Line 76 | register SRCINDEX  *si;                /* source index (modified to
76                          r->rdir[i] -= r->rorg[i];
77                                          /* compute distance */
78          if ((d = normalize(r->rdir)) == 0.0)
79 <                return(nextssamp(r, si));       /* at source! */
79 >                goto nextsample;                /* at source! */
80  
81                                          /* compute sample size */
82          si->dom  = source[si->sn].ss2;
# Line 90 | Line 92 | register SRCINDEX  *si;                /* source index (modified to
92          }
93          if (source[si->sn].sflags & SDISTANT)
94                  return(FHUGE);
95 +        if (si->dom <= FTINY)
96 +                goto nextsample;                /* behind source? */
97          si->dom /= d*d;
98          return(d);              /* sample OK, return distance */
99   }
# Line 216 | Line 220 | flatpart(si, r)                                /* partition a flat source */
220   register SRCINDEX  *si;
221   register RAY  *r;
222   {
223 <        register double  *vp;
223 >        register FLOAT  *vp;
224          FVECT  v;
225          double  du2, dv2;
226          int  pi;
# Line 300 | Line 304 | scylform(sn, dir)              /* compute cosine for cylinder's pr
304   int  sn;
305   register FVECT  dir;            /* assume normalized */
306   {
307 <        register double  *dv;
307 >        register FLOAT  *dv;
308          double  d;
309  
310          dv = source[sn].ss[SU];

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