| 33 |
|
b_vecf *ob_vec; /* get output vector from index */ |
| 34 |
|
b_ndxf *ob_ndx; /* get output index from vector */ |
| 35 |
|
b_ohmf *ob_ohm; /* get output proj. SA for index */ |
| 36 |
+ |
C_CHROMA *chroma; /* chromaticity data */ |
| 37 |
|
float bsdf[1]; /* scattering data (extends struct) */ |
| 38 |
|
} SDMat; |
| 39 |
|
|
| 45 |
|
#define mBSDF_outndx(b,v) (*(b)->ob_ndx)(v,(b)->ob_priv) |
| 46 |
|
#define mBSDF_outohm(b,o) (*(b)->ob_ohm)(o,(b)->ob_priv) |
| 47 |
|
#define mBSDF_value(b,i,o) (b)->bsdf[(o)*(b)->ninc + (i)] |
| 48 |
+ |
#define mBSDF_chroma(b,i,o) (b)->chroma[(o)*(b)->ninc + (i)] |
| 49 |
|
|
| 50 |
|
/* Holder for cumulative distribution (sum of BSDF * projSA) */ |
| 51 |
|
typedef struct SDMatCDst_s { |
| 64 |
|
|
| 65 |
|
/* Our matrix handling routines */ |
| 66 |
|
extern SDFunc SDhandleMtx; |
| 67 |
+ |
|
| 68 |
+ |
/******** Klems basis declarations for more intimate access ********/ |
| 69 |
+ |
|
| 70 |
+ |
#define MAXLATS 46 /* maximum number of latitudes */ |
| 71 |
+ |
|
| 72 |
+ |
/* BSDF angle specification */ |
| 73 |
+ |
typedef struct { |
| 74 |
+ |
char name[64]; /* basis name */ |
| 75 |
+ |
int nangles; /* total number of directions */ |
| 76 |
+ |
struct { |
| 77 |
+ |
float tmin; /* starting theta */ |
| 78 |
+ |
int nphis; /* number of phis (0 term) */ |
| 79 |
+ |
} lat[MAXLATS+1]; /* latitudes */ |
| 80 |
+ |
} ANGLE_BASIS; |
| 81 |
+ |
|
| 82 |
+ |
#define MAXABASES 7 /* limit on defined bases */ |
| 83 |
+ |
|
| 84 |
+ |
extern ANGLE_BASIS abase_list[MAXABASES]; |
| 85 |
+ |
|
| 86 |
+ |
extern int nabases; /* current number of defined bases */ |
| 87 |
+ |
|
| 88 |
+ |
extern C_COLOR mtx_RGB_prim[3]; /* matrix RGB primaries */ |
| 89 |
+ |
extern float mtx_RGB_coef[3]; /* corresponding Y coefficients */ |
| 90 |
+ |
|
| 91 |
+ |
/* Get color or grayscale value for BSDF in the given directions */ |
| 92 |
+ |
extern int mBSDF_color(float coef[], const SDMat *b, int i, int o); |
| 93 |
+ |
|
| 94 |
+ |
/* Get vector for this angle basis index (front exiting) */ |
| 95 |
+ |
extern b_vecf fo_getvec; |
| 96 |
+ |
|
| 97 |
+ |
/* Get index corresponding to the given vector (front exiting) */ |
| 98 |
+ |
extern b_ndxf fo_getndx; |
| 99 |
+ |
|
| 100 |
+ |
/* Get projected solid angle for this angle basis index (universal) */ |
| 101 |
+ |
extern b_ohmf io_getohm; |
| 102 |
+ |
|
| 103 |
+ |
/* Get vector for this angle basis index (back incident) */ |
| 104 |
+ |
extern b_vecf bi_getvec; |
| 105 |
+ |
|
| 106 |
+ |
/* Get index corresponding to the vector (back incident) */ |
| 107 |
+ |
extern b_ndxf bi_getndx; |
| 108 |
+ |
|
| 109 |
+ |
/* Get vector for this angle basis index (back exiting) */ |
| 110 |
+ |
extern b_vecf bo_getvec; |
| 111 |
+ |
|
| 112 |
+ |
/* Get index corresponding to the vector (back exiting) */ |
| 113 |
+ |
extern b_ndxf bo_getndx; |
| 114 |
+ |
|
| 115 |
+ |
/* Get vector for this angle basis index (front incident) */ |
| 116 |
+ |
extern b_vecf fi_getvec; |
| 117 |
+ |
|
| 118 |
+ |
/* Get index corresponding to the vector (front incident) */ |
| 119 |
+ |
extern b_ndxf fi_getndx; |
| 120 |
|
|
| 121 |
|
#ifdef __cplusplus |
| 122 |
|
} |
