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root/radiance/ray/src/rt/source.c
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Comparing ray/src/rt/source.c (file contents):
Revision 2.27 by gregl, Fri Aug 15 10:24:24 1997 UTC vs.
Revision 2.30 by greg, Tue Feb 25 02:47:23 2003 UTC

# Line 1 | Line 1
1 – /* Copyright (c) 1995 Regents of the University of California */
2 –
1   #ifndef lint
2 < static char SCCSid[] = "$SunId$ LBL";
2 > static const char       RCSid[] = "$Id$";
3   #endif
6 –
4   /*
5   *  source.c - routines dealing with illumination sources.
6   *
7 < *     8/20/85
7 > *  External symbols declared in source.h
8   */
9  
10 + #include "copyright.h"
11 +
12   #include  "ray.h"
13  
15 – #include  "octree.h"
16 –
14   #include  "otypes.h"
15  
16   #include  "source.h"
# Line 47 | Line 44 | static CNTPTR  *cntord;                        /* source ordering in direct
44   static int  maxcntr = 0;                /* size of contribution arrays */
45  
46  
47 + void
48   marksources()                   /* find and mark source objects */
49   {
50          int  foundsource = 0;
# Line 125 | Line 123 | memerr:
123   }
124  
125  
126 + void
127 + freesources()                   /* free all source structures */
128 + {
129 +        if (nsources > 0) {
130 +                free((void *)source);
131 +                source = NULL;
132 +                nsources = 0;
133 +        }
134 +        if (maxcntr <= 0)
135 +                return;
136 +        free((void *)srccnt);
137 +        srccnt = NULL;
138 +        free((void *)cntord);
139 +        cntord = NULL;
140 +        maxcntr = 0;
141 + }
142 +
143 +
144 + int
145   srcray(sr, r, si)               /* send a ray to a source, return domega */
146   register RAY  *sr;              /* returned source ray */
147   RAY  *r;                        /* ray which hit object */
# Line 162 | Line 179 | SRCINDEX  *si;                 /* source sample index */
179   }
180  
181  
182 + void
183   srcvalue(r)                     /* punch ray to source and compute value */
184   register RAY  *r;
185   {
# Line 202 | Line 220 | nomat:
220   }
221  
222  
223 + int
224   sourcehit(r)                    /* check to see if ray hit distant source */
225   register RAY  *r;
226   {
# Line 250 | Line 269 | register CNTPTR  *sc1, *sc2;
269   }
270  
271  
272 + void
273   direct(r, f, p)                         /* add direct component */
274   RAY  *r;                        /* ray that hit surface */
275 < int  (*f)();                    /* direct component coefficient function */
275 > void  (*f)();                   /* direct component coefficient function */
276   char  *p;                       /* data for f */
277   {
278 <        extern int  (*trace)();
278 >        extern void  (*trace)();
279          register int  sn;
280          register CONTRIB  *scp;
281          SRCINDEX  si;
# Line 375 | Line 395 | char  *p;                      /* data for f */
395   }
396  
397  
398 + void
399   srcscatter(r)                   /* compute source scattering into ray */
400   register RAY  *r;
401   {
# Line 526 | Line 547 | return(o->otype==MAT_ILLUM|o->otype==MAT_GLOW);}
547                                  distglow(m, r, raydist(r,PRIMARY)))
548  
549  
550 + int
551   m_light(m, r)                   /* ray hit a light source */
552   register OBJREC  *m;
553   register RAY  *r;
# Line 538 | Line 560 | register RAY  *r;
560                                                  /* check for passed illum */
561          if (passillum(m, r)) {
562                  if (m->oargs.nsargs && strcmp(m->oargs.sarg[0], VOIDID))
563 <                        return(rayshade(r, modifier(m->oargs.sarg[0])));
563 >                        return(rayshade(r,lastmod(objndx(m),m->oargs.sarg[0])));
564                  raytrans(r);
565                  return(1);
566          }

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