63 |
|
/* Our matrix handling routines */ |
64 |
|
extern SDFunc SDhandleMtx; |
65 |
|
|
66 |
+ |
/******** Klems basis declarations for more intimate access ********/ |
67 |
+ |
|
68 |
+ |
#define MAXLATS 46 /* maximum number of latitudes */ |
69 |
+ |
|
70 |
+ |
/* BSDF angle specification */ |
71 |
+ |
typedef struct { |
72 |
+ |
char name[64]; /* basis name */ |
73 |
+ |
int nangles; /* total number of directions */ |
74 |
+ |
struct { |
75 |
+ |
float tmin; /* starting theta */ |
76 |
+ |
int nphis; /* number of phis (0 term) */ |
77 |
+ |
} lat[MAXLATS+1]; /* latitudes */ |
78 |
+ |
} ANGLE_BASIS; |
79 |
+ |
|
80 |
+ |
#define MAXABASES 7 /* limit on defined bases */ |
81 |
+ |
|
82 |
+ |
extern ANGLE_BASIS abase_list[MAXABASES]; |
83 |
+ |
|
84 |
+ |
extern int nabases; /* current number of defined bases */ |
85 |
+ |
|
86 |
+ |
/* Get vector for this angle basis index (front exiting) */ |
87 |
+ |
extern b_vecf fo_getvec; |
88 |
+ |
|
89 |
+ |
/* Get index corresponding to the given vector (front exiting) */ |
90 |
+ |
extern b_ndxf fo_getndx; |
91 |
+ |
|
92 |
+ |
/* Get projected solid angle for this angle basis index (universal) */ |
93 |
+ |
extern b_ohmf io_getohm; |
94 |
+ |
|
95 |
+ |
/* Get vector for this angle basis index (back incident) */ |
96 |
+ |
extern b_vecf bi_getvec; |
97 |
+ |
|
98 |
+ |
/* Get index corresponding to the vector (back incident) */ |
99 |
+ |
extern b_ndxf bi_getndx; |
100 |
+ |
|
101 |
+ |
/* Get vector for this angle basis index (back exiting) */ |
102 |
+ |
extern b_vecf bo_getvec; |
103 |
+ |
|
104 |
+ |
/* Get index corresponding to the vector (back exiting) */ |
105 |
+ |
extern b_ndxf bo_getndx; |
106 |
+ |
|
107 |
+ |
/* Get vector for this angle basis index (front incident) */ |
108 |
+ |
extern b_vecf fi_getvec; |
109 |
+ |
|
110 |
+ |
/* Get index corresponding to the vector (front incident) */ |
111 |
+ |
extern b_ndxf fi_getndx; |
112 |
+ |
|
113 |
|
#ifdef __cplusplus |
114 |
|
} |
115 |
|
#endif |