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* 8/20/85 |
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*/ |
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+ |
#define AIMREQT 100 /* required aim success/failure */ |
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#define SDISTANT 01 /* source distant flag */ |
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#define SSKIP 02 /* source skip flag */ |
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#define SPROX 04 /* source proximity flag */ |
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#define SSPOT 010 /* source spotlight flag */ |
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#define SVIRTUAL 020 /* source virtual flag */ |
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#define SFLAT 040 /* source flat flag */ |
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#define SFOLLOW 0100 /* source follow path flag */ |
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typedef struct { |
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< |
float siz; /* output solid angle */ |
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> |
FVECT aim; /* aim direction or center */ |
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> |
float siz; /* output solid angle or area */ |
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float flen; /* focal length */ |
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FVECT aim; /* aim direction */ |
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} SPOT; /* spotlight */ |
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typedef struct { |
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< |
short sflags; /* source flags */ |
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> |
int sflags; /* source flags */ |
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FVECT sloc; /* direction or position of source */ |
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FVECT snorm; /* surface normal of flat source */ |
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float ss; /* tangent or disk radius */ |
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float ss2; /* domega or projected area */ |
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< |
union { |
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> |
struct { |
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float prox; /* proximity */ |
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SPOT *s; /* spot */ |
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} sl; /* localized source information */ |
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< |
OBJREC *so; /* source object */ |
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< |
} SOURCE; /* light source */ |
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> |
union { |
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> |
int success; /* successes - AIMREQT*failures */ |
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> |
int svnext; /* next source to aim for */ |
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> |
} sa; /* source aiming information */ |
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> |
long ntests, nhits; /* shadow tests and hits */ |
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> |
OBJREC *so; /* source destination object */ |
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> |
} SRCREC; /* light source */ |
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|
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< |
#define MAXSOURCE 512 /* maximum # of sources */ |
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> |
typedef struct { |
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> |
FVECT dir; /* source direction */ |
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> |
COLOR coef; /* material coefficient */ |
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> |
COLOR val; /* contribution */ |
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> |
} CONTRIB; /* direct contribution */ |
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< |
extern SOURCE srcval[MAXSOURCE]; /* our source list */ |
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> |
typedef struct { |
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> |
int sno; /* source number */ |
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> |
float brt; /* brightness (for comparison) */ |
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> |
} CNTPTR; /* contribution pointer */ |
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> |
|
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> |
extern SRCREC *source; /* our source list */ |
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extern int nsources; /* the number of sources */ |
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|
| 59 |
< |
extern double srcray(); /* ray to source */ |
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> |
extern double srcray(); /* ray to source */ |
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|
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extern SPOT *makespot(); /* make spotlight */ |
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+ |
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+ |
extern SRCREC *newsource(); /* allocate new source */ |
