| 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 |
|
|
| 145 |
|
#define getmaxdisk(c,o) (*sfun[(o)->otype].of->getdisk)(c,o) |
| 146 |
|
#define setsource(s,o) (*sfun[(o)->otype].of->setsrc)(s,o) |
| 147 |
|
|
| 148 |
+ |
#define SSKIPFLSIZ ((nsources+7) >> 3) |
| 149 |
+ |
|
| 150 |
+ |
extern uby8 *ssf_select; /* sources we may skip */ |
| 151 |
+ |
|
| 152 |
+ |
#define sskip_new() ((uby8 *)ecalloc(1,SSKIPFLSIZ)) |
| 153 |
+ |
#define sskip_free(fl) (efree(fl), fl=NULL) |
| 154 |
+ |
#define sskip_eq(fl1,fl2) !memcmp(fl1, fl2, SSKIPFLSIZ) |
| 155 |
+ |
#define sskip_cpy(dfl,sfl) memcpy(dfl,sfl,SSKIPFLSIZ) |
| 156 |
+ |
#define sskip_op(fl,op,sn) ((fl)[(sn)>>3] op (1<<((sn)&7))) |
| 157 |
+ |
#define sskip_chk(fl,sn) sskip_op(fl,&,sn) |
| 158 |
+ |
#define sskip_set(fl,sn) sskip_op(fl,|=,sn) |
| 159 |
+ |
#define sskip_clr(fl,sn) sskip_op(fl,&=~,sn) |
| 160 |
+ |
|
| 161 |
|
/* defined in source.c */ |
| 145 |
– |
extern OBJREC *findmaterial(OBJREC *o); |
| 162 |
|
extern void marksources(void); |
| 163 |
+ |
extern void distantsources(void); |
| 164 |
|
extern void freesources(void); |
| 165 |
|
extern int srcray(RAY *sr, RAY *r, SRCINDEX *si); |
| 166 |
|
extern void srcvalue(RAY *r); |
| 167 |
|
extern int sourcehit(RAY *r); |
| 168 |
< |
typedef void srcdirf_t(COLOR cv, void *np, FVECT ldir, double omega); |
| 168 |
> |
typedef void srcdirf_t(SCOLOR cv, void *np, FVECT ldir, double omega); |
| 169 |
|
extern void direct(RAY *r, srcdirf_t *f, void *p); |
| 170 |
|
extern void srcscatter(RAY *r); |
| 171 |
|
extern int m_light(OBJREC *m, RAY *r); |
| 172 |
< |
extern void srcblocker(RAY *r); |
| 172 |
> |
/* defined in srcobstr.c */ |
| 173 |
> |
extern void initobscache(int sn); |
| 174 |
> |
extern int srcblocker(RAY *r); |
| 175 |
|
extern int srcblocked(RAY *r); |
| 176 |
|
extern void freeobscache(SRCREC *s); |
| 177 |
+ |
extern void markclip(OBJREC *m); |
| 178 |
|
/* defined in srcsamp.c */ |
| 179 |
+ |
extern int sskip_rsi(uby8 *flags); |
| 180 |
+ |
extern uby8 *sskip_flags(int rsi); |
| 181 |
+ |
extern void sskip_addflags(uby8 *dfl, const uby8 *sfl); |
| 182 |
+ |
extern int srcskip(int sn, RAY *r); |
| 183 |
|
extern double nextssamp(RAY *r, SRCINDEX *si); |
| 184 |
|
extern int skipparts(int ct[3], int sz[3], int pp[2], unsigned char *pt); |
| 185 |
|
extern void nopart(SRCINDEX *si, RAY *r); |
| 186 |
|
extern void cylpart(SRCINDEX *si, RAY *r); |
| 187 |
|
extern void flatpart(SRCINDEX *si, RAY *r); |
| 188 |
|
extern double scylform(int sn, FVECT dir); |
| 189 |
+ |
/* defined in srcskipload.c */ |
| 190 |
+ |
extern int sskip_dim[2]; /* source skip image size */ |
| 191 |
+ |
extern int srcskip_open(char *bmpspec, char *scorrimg); |
| 192 |
+ |
extern int srcskip_getrow(int row, int *sndx, float *scorr); |
| 193 |
+ |
extern int *srcskip_ndxmap(void); |
| 194 |
+ |
extern float *srcskip_corrmap(void); |
| 195 |
+ |
extern void srcskip_close(void); |
| 196 |
+ |
extern void srcskip_free_maps(void); |
| 197 |
|
/* defined in srcsupp.c */ |
| 198 |
|
extern void initstypes(void); |
| 199 |
|
extern int newsource(void); |
