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Comparing ray/src/rt/srcobstr.c (file contents):
Revision 2.17 by greg, Wed Aug 7 05:10:09 2013 UTC vs.
Revision 2.20 by greg, Fri Apr 5 01:10:26 2024 UTC

# Line 15 | Line 15 | static const char RCSid[] = "$Id$";
15  
16   #include  "source.h"
17  
18 < #define ABS(x)  ((x)>0 ? (x) : -(x))
18 > #if  SHADCACHE                  /* preemptive shadow checking */
19  
20 + #ifndef MAX2SHADE
21 + #define MAX2SHADE       200             /* limit # of sources to precheck */
22 + #endif
23  
24 < #if  SHADCACHE                  /* preemptive shadow checking */
24 > #define ABS(x)  ((x)>0 ? (x) : -(x))
25  
26  
27   OBJECT *        antimodlist = NULL;     /* set of clipped materials */
# Line 36 | Line 39 | castshadow(int sn, FVECT rorg, FVECT rdir)
39                                          /* check for intersection */
40          while (localhit(&rt, &thescene)) {
41                  RAY     rt1 = rt;       /* pretend we were aimed at source */
42 <                rt1.crtype |= rt1.rtype = SHADOW;
42 >                rt1.crtype |= rt1.rtype = RSHADOW;
43                  rt1.rdir[0] = -rt.rdir[0];
44                  rt1.rdir[1] = -rt.rdir[1];
45                  rt1.rdir[2] = -rt.rdir[2];
# Line 58 | Line 61 | castshadow(int sn, FVECT rorg, FVECT rdir)
61   void                                    /* initialize occlusion cache */
62   initobscache(int sn)
63   {
64 <        register SRCREC *srcp = &source[sn];
65 <        int             cachelen;
66 <        FVECT           rorg, rdir;
67 <        RREAL           d;
68 <        int             i, j, k;
69 <        int             ax=0, ax1=1, ax2=2;
64 >        SRCREC  *srcp = &source[sn];
65 >        int     cachelen;
66 >        FVECT   rorg, rdir;
67 >        RREAL   d;
68 >        int     i, j, k;
69 >        int     ax=0, ax1=1, ax2=2;
70  
71          if (srcp->sflags & (SSKIP|SPROX|SSPOT|SVIRTUAL))
72                  return;                 /* don't cache these */
# Line 111 | Line 114 | initobscache(int sn)
114                                          /* clear cache */
115          for (i = cachelen; i--; )
116                  srcp->obscache->obs[i] = OVOID;
117 + #if (MAX2SHADE >= 0)
118 +        if (sn >= MAX2SHADE)            /* limit on prechecking */
119 +                return;
120 + #endif
121                                          /* cast shadow rays */
122          if (srcp->sflags & SDISTANT) {
123                  for (k = 3; k--; )
# Line 178 | Line 185 | initobscache(int sn)
185  
186  
187   static OBJECT *                 /* return occluder cache entry */
188 < srcobstructp(register RAY *r)
188 > srcobstructp(RAY *r)
189   {
190          static RNUMBER  lastrno = ~0;
191          static OBJECT   noobs;
# Line 288 | Line 295 | freeobscache(SRCREC *srcp)
295  
296          
297   int                             /* record a source blocker */
298 < srcblocker(register RAY *r)
298 > srcblocker(RAY *r)
299   {
300          OBJREC  *m;
301  

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