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root/radiance/ray/src/rt/ray.h
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Comparing ray/src/rt/ray.h (file contents):
Revision 2.38 by greg, Tue Feb 24 19:39:27 2015 UTC vs.
Revision 2.39 by greg, Tue Nov 13 19:58:33 2018 UTC

# Line 46 | Line 46 | typedef struct ray {
46          RREAL   rod;            /* -DOT(rdir, ron) */
47          RREAL   uv[2];          /* local coordinates */
48          FVECT   pert;           /* surface normal perturbation */
49 <        RREAL   rt;             /* returned effective ray length */
49 >        RREAL   rmt;            /* returned mirrored ray length */
50 >        RREAL   rxt;            /* returned unmirrored ray length */
51          const struct ray  *parent;      /* ray this originated from */
52          OBJECT  *clipset;       /* set of objects currently clipped */
53          OBJECT  *newcset;       /* next clipset, used for transmission */
# Line 61 | Line 62 | typedef struct ray {
62          float   rweight;        /* cumulative weight (for termination) */
63          COLOR   rcoef;          /* contribution coefficient w.r.t. parent */
64          COLOR   pcol;           /* pattern color */
65 +        COLOR   mcol;           /* mirrored color contribution */
66          COLOR   rcol;           /* returned radiance value */
67          COLOR   cext;           /* medium extinction coefficient */
68          COLOR   albedo;         /* medium scattering albedo */
# Line 71 | Line 73 | typedef struct ray {
73   }  RAY;
74  
75   #define  rayvalue(r)    (*(r)->revf)(r)
76 +
77 + #define  raydistance(r) (bright((r)->mcol) > 0.5*bright((r)->rcol) ? \
78 +                                (r)->rmt : (r)->rxt)
79  
80   extern char  VersionID[];       /* Radiance version ID string */
81  

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