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root/radiance/ray/src/common/bsdf_t.h
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Comparing ray/src/common/bsdf_t.h (file contents):
Revision 3.5 by greg, Tue Apr 19 21:31:22 2011 UTC vs.
Revision 3.10 by greg, Sun Sep 2 15:33:15 2012 UTC

# Line 29 | Line 29 | typedef struct SDNode_s {
29          } u;                    /* subtrees or values (extends struct) */
30   } SDNode;
31  
32 + #define SD_FREFL        1       /* component reflects off front side */
33 + #define SD_BREFL        2       /* component reflects off back side */
34 + #define SD_FXMIT        3       /* component transmits through front side */
35 + #define SD_BXMIT        4       /* component transmits through back side */
36 +
37 + /* Variable-resolution BSDF holder */
38 + typedef struct {
39 +        int     sidef;          /* transmitted component? */
40 +        SDNode  *st;            /* BSDF tree */
41 + } SDTre;
42 +
43 + /* Holder for cumulative distribution (sum of BSDF * projSA) */
44 + typedef struct SDTreCDst_s {
45 +                                /* base fields; must come first */
46 +        SD_CDIST_BASE(SDTreCDst_s);
47 +        double  clim[2][2];     /* input coordinate limits */
48 +        double  max_psa;        /* maximum projected solid angle */
49 +        short   sidef;          /* which mode is in play */
50 +        short   isodist;        /* isotropic distribution? */
51 +        int     calen;          /* cumulative array length */
52 +        struct {
53 +                unsigned        hndx;   /* hilbert index */
54 +                unsigned        cuml;   /* cumulative value */
55 +        }               carr[1];        /* cumulative array (extends struct) */
56 + } SDTreCDst;    
57 +
58   #ifdef _EZXML_H
59   /* Load a variable-resolution BSDF tree from an open XML file */
60   extern SDError          SDloadTre(SDData *sd, ezxml_t wtl);

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