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root/Development/ray/src/util/findglare.c
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Comparing ray/src/util/findglare.c (file contents):
Revision 1.5 by greg, Tue Mar 19 09:08:18 1991 UTC vs.
Revision 1.8 by greg, Tue Mar 19 17:21:34 1991 UTC

# Line 19 | Line 19 | static char SCCSid[] = "$SunId$ LBL";
19   char    *rtargv[32] = {"rtrace", "-h", "-ov", "-fff"};
20   int     rtargc = 4;
21  
22 < VIEW    ourview;                        /* our view */
22 > VIEW    ourview = STDVIEW;              /* our view */
23   VIEW    pictview = STDVIEW;             /* picture view */
24   VIEW    leftview, rightview;            /* leftmost and rightmost views */
25  
# Line 29 | Line 29 | char   *octree = NULL;                 /* octree file name */
29   int     verbose = 0;                    /* verbose reporting */
30   char    *progname;                      /* global argv[0] */
31  
32 + double  threshold = 0.;                 /* glare threshold */
33 +
34   int     sampdens = SAMPDENS;            /* sample density */
35   ANGLE   glarang[180] = {AEND};          /* glare calculation angles */
36   int     nglarangs = 0;
# Line 57 | Line 59 | char   *argv[];
59                          continue;
60                  }
61                  switch (argv[i][1]) {
62 +                case 't':
63 +                        threshold = atof(argv[++i]);
64 +                        break;
65                  case 'r':
66                          sampdens = atoi(argv[++i])/2;
67                          break;
# Line 168 | Line 173 | char   *argv[];
173                  exit(1);
174          }
175          init();                                 /* initialize program */
176 <        comp_thresh();                          /* compute glare threshold */
176 >        if (threshold <= FTINY)
177 >                comp_thresh();                  /* compute glare threshold */
178          analyze();                              /* analyze view */
179          cleanup();                              /* tidy up */
180                                                  /* print header */
# Line 292 | Line 298 | int    x, y;
298                  return(-1);
299          spinvector(vd, vd, ourview.vup, h_theta(x));
300          return(0);
295 – }
296 –
297 –
298 – spinvector(vres, vorig, vnorm, theta)   /* rotate vector around normal */
299 – FVECT  vres, vorig, vnorm;
300 – double  theta;
301 – {
302 –        extern double  sin(), cos();
303 –        double  sint, cost, dotp;
304 –        FVECT  vperp;
305 –        register int  i;
306 –        
307 –        sint = sin(theta);
308 –        cost = cos(theta);
309 –        dotp = DOT(vorig, vnorm);
310 –        fcross(vperp, vnorm, vorig);
311 –        for (i = 0; i < 3; i++)
312 –                vres[i] = vnorm[i]*dotp*(1.-cost) +
313 –                                vorig[i]*cost + vperp[i]*sint;
301   }
302  
303  

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