| 22 |
|
extern void SDsquare2disk(double ds[2], double seedx, double seedy); |
| 23 |
|
|
| 24 |
|
typedef struct { |
| 25 |
+ |
COLOR v; /* hemisphere sample value */ |
| 26 |
+ |
FVECT p; /* intersection point */ |
| 27 |
+ |
} AMBSAMP; /* sample value */ |
| 28 |
+ |
|
| 29 |
+ |
typedef struct { |
| 30 |
|
RAY *rp; /* originating ray sample */ |
| 31 |
|
FVECT ux, uy; /* tangent axis unit vectors */ |
| 32 |
|
int ns; /* number of samples per axis */ |
| 33 |
|
COLOR acoef; /* division contribution coefficient */ |
| 34 |
< |
struct s_ambsamp { |
| 30 |
< |
COLOR v; /* hemisphere sample value */ |
| 31 |
< |
FVECT p; /* intersection point */ |
| 32 |
< |
} sa[1]; /* sample array (extends struct) */ |
| 34 |
> |
AMBSAMP sa[1]; /* sample array (extends struct) */ |
| 35 |
|
} AMBHEMI; /* ambient sample hemisphere */ |
| 34 |
– |
|
| 35 |
– |
typedef struct s_ambsamp AMBSAMP; |
| 36 |
|
|
| 37 |
|
#define ambsam(h,i,j) (h)->sa[(i)*(h)->ns + (j)] |
| 38 |
|
|
