| 10 |
|
|
| 11 |
|
#define SDISTANT 01 /* source distant flag */ |
| 12 |
|
#define SSKIP 02 /* source skip flag */ |
| 13 |
– |
#define SPROX 04 /* source proximity flag */ |
| 14 |
– |
#define SSPOT 010 /* source spotlight flag */ |
| 13 |
|
|
| 14 |
|
typedef struct { |
| 17 |
– |
float siz; /* output solid angle */ |
| 18 |
– |
float flen; /* focal length */ |
| 19 |
– |
FVECT aim; /* aim direction */ |
| 20 |
– |
} SPOT; /* spotlight */ |
| 21 |
– |
|
| 22 |
– |
typedef struct { |
| 15 |
|
short sflags; /* source flags */ |
| 16 |
|
FVECT sloc; /* direction or position of source */ |
| 17 |
|
float ss; /* tangent or disk radius */ |
| 18 |
|
float ss2; /* domega or projected area */ |
| 19 |
< |
union { |
| 28 |
< |
float prox; /* proximity */ |
| 29 |
< |
SPOT *s; /* spot */ |
| 30 |
< |
} sl; /* localized source information */ |
| 19 |
> |
long ntests, nhits; /* shadow tests and hits */ |
| 20 |
|
OBJREC *so; /* source object */ |
| 21 |
< |
} SOURCE; /* light source */ |
| 21 |
> |
} SRCREC; /* light source */ |
| 22 |
|
|
| 23 |
< |
#define MAXSOURCE 512 /* maximum # of sources */ |
| 23 |
> |
typedef struct { |
| 24 |
> |
int sno; /* source number */ |
| 25 |
> |
FVECT dir; /* source direction */ |
| 26 |
> |
float dom; /* domega for source */ |
| 27 |
> |
float brt; /* brightness (for comparison) */ |
| 28 |
> |
COLOR val; /* contribution */ |
| 29 |
> |
} CONTRIB; /* direct contribution */ |
| 30 |
|
|
| 31 |
< |
extern SOURCE srcval[MAXSOURCE]; /* our source list */ |
| 31 |
> |
extern SRCREC *source; /* our source list */ |
| 32 |
|
extern int nsources; /* the number of sources */ |
| 33 |
|
|
| 34 |
< |
extern double srcray(); /* ray to source */ |
| 40 |
< |
|
| 41 |
< |
extern SPOT *makespot(); /* make spotlight */ |
| 34 |
> |
extern double srcray(); /* ray to source */ |
