29 |
|
} u; /* subtrees or values (extends struct) */ |
30 |
|
} SDNode; |
31 |
|
|
32 |
+ |
#define SD_UFRONT 0x1 /* flag for BSDF uses front side */ |
33 |
+ |
#define SD_UBACK 0x2 /* flag for BSDF uses back side */ |
34 |
+ |
#define SD_XMIT 0x3 /* combine the two for transmission */ |
35 |
+ |
|
36 |
|
/* Variable-resolution BSDF holder */ |
37 |
|
typedef struct { |
38 |
< |
int isxmit; /* transmitted component? */ |
38 |
> |
int sidef; /* transmitted component? */ |
39 |
|
SDNode *st; /* BSDF tree */ |
40 |
|
} SDTre; |
41 |
|
|
44 |
|
SD_CDIST_BASE; /* base fields; must come first */ |
45 |
|
double clim[2][2]; /* input coordinate limits */ |
46 |
|
double max_psa; /* maximum projected solid angle */ |
47 |
< |
int isxmit; /* transmitted component? */ |
47 |
> |
int sidef; /* which side(s) to use */ |
48 |
|
int calen; /* cumulative array length */ |
49 |
|
struct { |
50 |
|
unsigned hndx; /* hilbert index */ |