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root/radiance/ray/src/util/glare.h
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Comparing ray/src/util/glare.h (file contents):
Revision 1.14 by greg, Fri Apr 12 10:28:39 1991 UTC vs.
Revision 2.5 by schorsch, Mon Jul 14 22:24:00 2003 UTC

# Line 1 | Line 1
1 < /* Copyright (c) 1991 Regents of the University of California */
2 <
3 < /* SCCSid "$SunId$ LBL" */
4 <
1 > /* RCSid: $Id$ */
2   /*
3   * Common data structures for glare source finding routines
4   */
5 + #ifndef _RAD_GLARE_H_
6 + #define _RAD_GLARE_H_
7  
8   #include "standard.h"
9   #include "view.h"
10   #include "color.h"
11   #include "setscan.h"
12  
13 + #ifdef __cplusplus
14 + extern "C" {
15 + #endif
16 +
17   #define GLAREBR         7.0             /* glare source is this * avg. lum. */
18  
19 < #define SAMPDENS        50              /* default samples per unit in image */
19 > #define SAMPDENS        75              /* default samples per unit in image */
20   #define TSAMPSTEP       10              /* sample step to compute threshold */
21  
22   #define SEPS            1               /* sources this close ==> contig. */
# Line 23 | Line 26
26  
27   #define TOOSMALL(s)     ((s)->brt*(s)->dom < threshold*SAMIN)
28  
29 + #define SABIG           .025            /* solid angle of splittable source */
30 + #define LCORR           .12             /* linearity of splittable source */
31 +
32   extern VIEW     ourview;                /* our view */
33   extern VIEW     pictview;               /* picture view */
34   extern VIEW     leftview, rightview;    /* leftmost and rightmost views */
# Line 37 | Line 43 | extern ANGLE   glarang[];              /* glare calculation angles *
43   extern int      nglarangs;
44   extern double   maxtheta;               /* maximum glare angle (in radians) */
45   extern int      hsize;                  /* horizontal size */
40 extern int      hlim;                   /* horizontal limit of central view */
46  
47   #define nglardirs       (2*nglarangs+1)
48   #define vsize           (sampdens-1)
49 < #define h_theta(h)      (-(double)(h)/(double)sampdens)
49 > #define hscale(v)       sqrt((double)(sampdens*sampdens - (v)*(v)))
50 > #define hlim(v)         (int)(maxtheta*hscale(v))
51 > #define h_theta(h,v)    (-(h)/hscale(v))
52  
53   extern struct illum {
54          float   theta;          /* glare direction */
# Line 66 | Line 73 | extern struct source {
73          struct source   *next;  /* next source in list */
74   } *donelist;                    /* finished sources */
75  
76 < typedef struct {
77 <        double  err;            /* cumulative error */
71 <        double  prob;           /* target probability */
72 < } SPANERR;              /* probability record for computing spans */
76 > extern double   getviewpix(int vh, int vv);
77 > extern double   pixsize(int x, int y);
78  
74 extern double   getviewpix();
75
79   extern long     npixinvw;       /* number of samples in view */
80   extern long     npixmiss;       /* number of samples missing */
81 +
82 +
83 +
84 + #ifdef __cplusplus
85 + }
86 + #endif
87 + #endif /* _RAD_GLARE_H_ */
88 +

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