19 |
|
#ifndef SHADCACHE |
20 |
|
#define SHADCACHE 20 /* shadow cache resolution */ |
21 |
|
#endif |
22 |
+ |
#ifndef MINSHADCNT |
23 |
+ |
#define MINSHADCNT 2 /* test at least this many shadows */ |
24 |
+ |
#endif |
25 |
|
|
26 |
|
#define SDISTANT 01 /* source distant flag */ |
27 |
|
#define SSKIP 02 /* source skip flag */ |
29 |
|
#define SSPOT 010 /* source spotlight flag */ |
30 |
|
#define SVIRTUAL 020 /* source virtual flag */ |
31 |
|
#define SFLAT 040 /* source flat flag */ |
32 |
< |
#define SCYL 0100 /* source cylindrical flag */ |
33 |
< |
#define SFOLLOW 0200 /* source follow path flag */ |
32 |
> |
#define SCIR 0100 /* source circular flag */ |
33 |
> |
#define SCYL 0200 /* source cylindrical flag */ |
34 |
> |
#define SFOLLOW 0400 /* source follow path flag */ |
35 |
|
|
36 |
|
typedef struct { |
37 |
|
FVECT aim; /* aim direction or center */ |
54 |
|
} OBSCACHE; /* obstructor cache */ |
55 |
|
|
56 |
|
typedef struct { |
53 |
– |
int sflags; /* source flags */ |
57 |
|
FVECT sloc; /* direction or position of source */ |
58 |
|
FVECT ss[3]; /* source dimension vectors, U, V, and W */ |
59 |
|
float srad; /* maximum source radius */ |
72 |
|
} sa; /* source aiming information */ |
73 |
|
unsigned long |
74 |
|
ntests, nhits; /* shadow tests and hits */ |
75 |
< |
#ifdef SHADCACHE |
75 |
> |
#if SHADCACHE |
76 |
|
OBSCACHE *obscache; /* obstructor cache */ |
77 |
|
#endif |
78 |
+ |
int sflags; /* source flags */ |
79 |
|
} SRCREC; /* light source */ |
80 |
|
|
81 |
|
#define MAXSPART 64 /* maximum partitions per source */ |
88 |
|
#define snorm ss[SW] /* normal vector for flat source */ |
89 |
|
|
90 |
|
typedef struct { |
91 |
+ |
double dom; /* solid angle of partition */ |
92 |
|
int sn; /* source number */ |
93 |
|
short np; /* number of partitions */ |
94 |
|
short sp; /* this partition number */ |
90 |
– |
double dom; /* solid angle of partition */ |
95 |
|
unsigned char spt[MAXSPART/2]; /* source partitioning */ |
96 |
|
} SRCINDEX; /* source index structure */ |
97 |
|
|
146 |
|
#define setsource(s,o) (*sfun[(o)->otype].of->setsrc)(s,o) |
147 |
|
|
148 |
|
/* defined in source.c */ |
145 |
– |
extern OBJREC *findmaterial(OBJREC *o); |
149 |
|
extern void marksources(void); |
150 |
+ |
extern void distantsources(void); |
151 |
|
extern void freesources(void); |
152 |
|
extern int srcray(RAY *sr, RAY *r, SRCINDEX *si); |
153 |
|
extern void srcvalue(RAY *r); |
156 |
|
extern void direct(RAY *r, srcdirf_t *f, void *p); |
157 |
|
extern void srcscatter(RAY *r); |
158 |
|
extern int m_light(OBJREC *m, RAY *r); |
159 |
+ |
/* defined in srcobstr.c */ |
160 |
+ |
extern void initobscache(int sn); |
161 |
|
extern int srcblocker(RAY *r); |
162 |
|
extern int srcblocked(RAY *r); |
163 |
|
extern void freeobscache(SRCREC *s); |
164 |
+ |
extern void markclip(OBJREC *m); |
165 |
|
/* defined in srcsamp.c */ |
166 |
|
extern double nextssamp(RAY *r, SRCINDEX *si); |
167 |
|
extern int skipparts(int ct[3], int sz[3], int pp[2], unsigned char *pt); |