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root/radiance/ray/src/rt/rpict.c
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Comparing ray/src/rt/rpict.c (file contents):
Revision 2.13 by greg, Tue Sep 8 20:56:20 1992 UTC vs.
Revision 2.14 by greg, Mon Sep 21 12:07:52 1992 UTC

# Line 18 | Line 18 | static char SCCSid[] = "$SunId$ LBL";
18   #endif
19  
20   #include  <signal.h>
21 – #include  <fcntl.h>
21  
22   #include  "view.h"
23  
# Line 35 | Line 34 | int  samplendx;                                /* sample index number */
34   VIEW  ourview = STDVIEW;                /* view parameters */
35   int  hresolu = 512;                     /* horizontal resolution */
36   int  vresolu = 512;                     /* vertical resolution */
37 < double  pixaspect = 1.0;                /* pixel aspect ratio */
37 > double  pixaspect = 1.0;                /* pixel aspect ratio */
38  
39   int  psample = 4;                       /* pixel sample size */
40 < double  maxdiff = .05;                  /* max. difference for interpolation */
41 < double  dstrpix = 0.67;                 /* square pixel distribution */
40 > double  maxdiff = .05;                  /* max. difference for interpolation */
41 > double  dstrpix = 0.67;                 /* square pixel distribution */
42  
43 < double  dstrsrc = 0.0;                  /* square source distribution */
44 < double  shadthresh = .05;               /* shadow threshold */
45 < double  shadcert = .5;                  /* shadow certainty */
43 > double  dstrsrc = 0.0;                  /* square source distribution */
44 > double  shadthresh = .05;               /* shadow threshold */
45 > double  shadcert = .5;                  /* shadow certainty */
46   int  directrelay = 1;                   /* number of source relays */
47   int  vspretest = 512;                   /* virtual source pretest density */
48   int  directinvis = 0;                   /* sources invisible? */
49 < double  srcsizerat = .25;               /* maximum ratio source size/dist. */
49 > double  srcsizerat = .25;               /* maximum ratio source size/dist. */
50  
51 < double  specthresh = .15;               /* specular sampling threshold */
52 < double  specjitter = 1.;                /* specular sampling jitter */
51 > double  specthresh = .15;               /* specular sampling threshold */
52 > double  specjitter = 1.;                /* specular sampling jitter */
53  
54   int  maxdepth = 6;                      /* maximum recursion depth */
55 < double  minweight = 5e-3;               /* minimum ray weight */
55 > double  minweight = 5e-3;               /* minimum ray weight */
56  
57   COLOR  ambval = BLKCOLOR;               /* ambient value */
58 < double  ambacc = 0.2;                   /* ambient accuracy */
58 > double  ambacc = 0.2;                   /* ambient accuracy */
59   int  ambres = 32;                       /* ambient resolution */
60   int  ambdiv = 128;                      /* ambient divisions */
61   int  ambssamp = 0;                      /* ambient super-samples */
# Line 66 | Line 65 | int  ambincl = -1;                     /* include == 1, exclude == 0 */
65  
66   int  ralrm = 0;                         /* seconds between reports */
67  
68 < double  pctdone = 0.0;                  /* percentage done */
68 > double  pctdone = 0.0;                  /* percentage done */
69  
70   long  tlastrept = 0L;                   /* time at last report */
71  
# Line 75 | Line 74 | extern long  tstart;                   /* starting time */
74  
75   extern long  nrays;                     /* number of rays traced */
76  
77 < #define  MAXDIV         16              /* maximum sample size */
77 > #define  MAXDIV         16              /* maximum sample size */
78  
79 < #define  pixjitter()    (.5+dstrpix*(.5-frandom()))
79 > #define  pixjitter()    (.5+dstrpix*(.5-frandom()))
80  
81 < #define  RFTEMPLATE     "rfXXXXXX"
82 < #define  HFTEMPLATE     TEMPLATE
81 > #define  RFTEMPLATE     "rfXXXXXX"
82 > #define  HFTEMPLATE     TEMPLATE
83  
84   static char  *hfname = NULL;            /* header file name */
85   static FILE  *hfp = NULL;               /* header file pointer */
# Line 89 | Line 88 | static int  hres, vres;                        /* resolution for this frame
88  
89   extern char  *mktemp();
90  
91 < double  pixvalue();
91 > double  pixvalue();
92  
93  
94   quit(code)                      /* quit program */
# Line 110 | Line 109 | int  code;
109   report()                /* report progress */
110   {
111          struct rusage  rubuf;
112 <        double  t;
112 >        double  t;
113  
114          getrusage(RUSAGE_SELF, &rubuf);
115          t = (rubuf.ru_utime.tv_usec + rubuf.ru_stime.tv_usec) / 1e6;
# Line 184 | Line 183 | char  *pout, *zout, *prvr;
183          extern char  *rindex(), *strncpy(), *strcat();
184          char  fbuf[128], fbuf2[128];
185          register char  *cp;
186 <        RESOLU  rs;
187 <        double  pa;
186 >        RESOLU  rs;
187 >        double  pa;
188                                          /* finished writing header */
189          closeheader();
190                                          /* check sampling */
# Line 349 | Line 348 | char  *zfile, *oldfile;
348          pctdone = 100.0*i/vres;
349          if (ralrm > 0)                  /* report init stats */
350                  report();
351 < #ifndef  BSD
351 > #ifndef  BSD
352          else
353   #endif
354          signal(SIGALRM, report);
# Line 374 | Line 373 | char  *zfile, *oldfile;
373                                                          /* fill bar */
374                  fillscanbar(scanbar, zbar, hres, ypos, ystep);
375                                                          /* write it out */
376 < #ifndef  BSD
376 > #ifndef  BSD
377                  signal(SIGALRM, SIG_IGN);       /* don't interrupt writes */
378   #endif
379                  for (i = ystep; i > 0; i--) {
# Line 391 | Line 390 | char  *zfile, *oldfile;
390                  pctdone = 100.0*(vres-1-ypos)/vres;
391                  if (ralrm > 0 && time((long *)0) >= tlastrept+ralrm)
392                          report();
393 < #ifndef  BSD
393 > #ifndef  BSD
394                  else
395                          signal(SIGALRM, report);
396   #endif
# Line 426 | Line 425 | memerr:
425  
426  
427   fillscanline(scanline, zline, sd, xres, y, xstep)       /* fill scan at y */
428 < register COLOR  *scanline;
429 < register float  *zline;
428 > register COLOR  *scanline;
429 > register float  *zline;
430   register char  *sd;
431   int  xres, y, xstep;
432   {
433          static int  nc = 0;             /* number of calls */
434          int  bl = xstep, b = xstep;
435 <        double  z;
435 >        double  z;
436          register int  i;
437          
438          z = pixvalue(scanline[0], 0, y);
# Line 461 | Line 460 | int  xres, y, xstep;
460  
461  
462   fillscanbar(scanbar, zbar, xres, y, ysize)      /* fill interior */
463 < register COLOR  *scanbar[];
464 < register float  *zbar[];
463 > register COLOR  *scanbar[];
464 > register float  *zbar[];
465   int  xres, y, ysize;
466   {
467          COLOR  vline[MAXDIV+1];
# Line 492 | Line 491 | int  xres, y, ysize;
491  
492  
493   int
494 < fillsample(colline, zline, x, y, xlen, ylen, b) /* fill interior points */
495 < register COLOR  *colline;
496 < register float  *zline;
494 > fillsample(colline, zline, x, y, xlen, ylen, b) /* fill interior points */
495 > register COLOR  *colline;
496 > register float  *zline;
497   int  x, y;
498   int  xlen, ylen;
499   int  b;
500   {
501          extern double  fabs();
502 <        double  ratio;
503 <        double  z;
502 >        double  ratio;
503 >        double  z;
504          COLOR  ctmp;
505          int  ncut;
506          register int  len;

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