| 26 |
|
static int nvobjects = 0; /* number of virtual source objects */ |
| 27 |
|
|
| 28 |
|
|
| 29 |
< |
void |
| 30 |
< |
markvirtuals() /* find and mark virtual sources */ |
| 29 |
> |
extern void |
| 30 |
> |
markvirtuals(void) /* find and mark virtual sources */ |
| 31 |
|
{ |
| 32 |
|
register OBJREC *o; |
| 33 |
|
register int i; |
| 69 |
|
} |
| 70 |
|
|
| 71 |
|
|
| 72 |
< |
void |
| 73 |
< |
addvirtuals(sn, nr) /* add virtuals associated with source */ |
| 74 |
< |
int sn; |
| 75 |
< |
int nr; |
| 72 |
> |
extern void |
| 73 |
> |
addvirtuals( /* add virtuals associated with source */ |
| 74 |
> |
int sn, |
| 75 |
> |
int nr |
| 76 |
> |
) |
| 77 |
|
{ |
| 78 |
|
register int i; |
| 79 |
|
/* check relay limit first */ |
| 88 |
|
} |
| 89 |
|
|
| 90 |
|
|
| 91 |
< |
void |
| 92 |
< |
vproject(o, sn, n) /* create projected source(s) if they exist */ |
| 93 |
< |
OBJREC *o; |
| 94 |
< |
int sn; |
| 95 |
< |
int n; |
| 91 |
> |
extern void |
| 92 |
> |
vproject( /* create projected source(s) if they exist */ |
| 93 |
> |
OBJREC *o, |
| 94 |
> |
int sn, |
| 95 |
> |
int n |
| 96 |
> |
) |
| 97 |
|
{ |
| 98 |
|
register int i; |
| 99 |
|
register VSMATERIAL *vsmat; |
| 117 |
|
} |
| 118 |
|
|
| 119 |
|
|
| 120 |
< |
OBJREC * |
| 121 |
< |
vsmaterial(o) /* get virtual source material pointer */ |
| 122 |
< |
OBJREC *o; |
| 120 |
> |
extern OBJREC * |
| 121 |
> |
vsmaterial( /* get virtual source material pointer */ |
| 122 |
> |
OBJREC *o |
| 123 |
> |
) |
| 124 |
|
{ |
| 125 |
|
register int i; |
| 126 |
|
register OBJREC *m; |
| 137 |
|
} |
| 138 |
|
|
| 139 |
|
|
| 140 |
< |
int |
| 141 |
< |
makevsrc(op, sn, pm) /* make virtual source if reasonable */ |
| 142 |
< |
OBJREC *op; |
| 143 |
< |
register int sn; |
| 144 |
< |
MAT4 pm; |
| 140 |
> |
extern int |
| 141 |
> |
makevsrc( /* make virtual source if reasonable */ |
| 142 |
> |
OBJREC *op, |
| 143 |
> |
register int sn, |
| 144 |
> |
MAT4 pm |
| 145 |
> |
) |
| 146 |
|
{ |
| 147 |
|
FVECT nsloc, nsnorm, ocent, v; |
| 148 |
|
double maxrad2, d; |
| 259 |
|
return(i); |
| 260 |
|
memerr: |
| 261 |
|
error(SYSTEM, "out of memory in makevsrc"); |
| 262 |
+ |
return -1; /* pro forma return */ |
| 263 |
|
} |
| 264 |
|
|
| 265 |
|
|
| 266 |
< |
double |
| 267 |
< |
getdisk(oc, op, sn) /* get visible object disk */ |
| 268 |
< |
FVECT oc; |
| 269 |
< |
OBJREC *op; |
| 270 |
< |
register int sn; |
| 266 |
> |
extern double |
| 267 |
> |
getdisk( /* get visible object disk */ |
| 268 |
> |
FVECT oc, |
| 269 |
> |
OBJREC *op, |
| 270 |
> |
register int sn |
| 271 |
> |
) |
| 272 |
|
{ |
| 273 |
|
double rad2, roffs, offs, d, rd, rdoto; |
| 274 |
|
FVECT rnrm, nrm; |
| 296 |
|
} |
| 297 |
|
|
| 298 |
|
|
| 299 |
< |
int |
| 300 |
< |
vstestvis(f, o, oc, or2, sn) /* pretest source visibility */ |
| 301 |
< |
int f; /* virtual source flags */ |
| 302 |
< |
OBJREC *o; /* relay object */ |
| 303 |
< |
FVECT oc; /* relay object center */ |
| 304 |
< |
double or2; /* relay object radius squared */ |
| 305 |
< |
register int sn; /* target source number */ |
| 299 |
> |
extern int |
| 300 |
> |
vstestvis( /* pretest source visibility */ |
| 301 |
> |
int f, /* virtual source flags */ |
| 302 |
> |
OBJREC *o, /* relay object */ |
| 303 |
> |
FVECT oc, /* relay object center */ |
| 304 |
> |
double or2, /* relay object radius squared */ |
| 305 |
> |
register int sn /* target source number */ |
| 306 |
> |
) |
| 307 |
|
{ |
| 308 |
|
RAY sr; |
| 309 |
|
FVECT onorm; |
| 310 |
|
FVECT offsdir; |
| 311 |
|
SRCINDEX si; |
| 312 |
< |
double or, d; |
| 312 |
> |
double or, d, d1; |
| 313 |
|
int stestlim, ssn; |
| 314 |
|
int nhit, nok; |
| 315 |
|
register int i, n; |
| 361 |
|
sr.rdir[i] = -onorm[i]; |
| 362 |
|
} |
| 363 |
|
sr.rmax = 0.0; |
| 364 |
< |
rayorigin(&sr, NULL, PRIMARY, 1.0); |
| 364 |
> |
rayorigin(&sr, PRIMARY, NULL, NULL); |
| 365 |
|
} while (!(*ofun[o->otype].funp)(o, &sr)); |
| 366 |
|
/* check against source */ |
| 367 |
|
VCOPY(sr.rorg, sr.rop); /* starting from intersection */ |
| 375 |
|
} |
| 376 |
|
sr.revf = srcvalue; |
| 377 |
|
rayvalue(&sr); /* check sample validity */ |
| 378 |
< |
if (bright(sr.rcol) <= FTINY) |
| 378 |
> |
if ((d = bright(sr.rcol)) <= FTINY) |
| 379 |
|
continue; |
| 380 |
|
nok++; /* got sample; check obstructions */ |
| 381 |
|
rayclear(&sr); |
| 382 |
|
sr.revf = raytrace; |
| 383 |
|
rayvalue(&sr); |
| 384 |
< |
if (bright(sr.rcol) > FTINY) |
| 384 |
> |
if ((d1 = bright(sr.rcol)) > FTINY) { |
| 385 |
> |
if (d - d1 > FTINY) { |
| 386 |
> |
#ifdef DEBUG |
| 387 |
> |
fprintf(stderr, "\tpartially shadowed\n"); |
| 388 |
> |
#endif |
| 389 |
> |
return(f); /* intervening transmitter */ |
| 390 |
> |
} |
| 391 |
|
nhit++; |
| 392 |
+ |
} |
| 393 |
|
if (nhit > 0 && nhit < nok) { |
| 394 |
|
#ifdef DEBUG |
| 395 |
|
fprintf(stderr, "\tpartially occluded\n"); |
| 411 |
|
|
| 412 |
|
|
| 413 |
|
#ifdef DEBUG |
| 414 |
< |
void |
| 415 |
< |
virtverb(sn, fp) /* print verbose description of virtual source */ |
| 416 |
< |
register int sn; |
| 417 |
< |
FILE *fp; |
| 414 |
> |
extern void |
| 415 |
> |
virtverb( /* print verbose description of virtual source */ |
| 416 |
> |
register int sn, |
| 417 |
> |
FILE *fp |
| 418 |
> |
) |
| 419 |
|
{ |
| 420 |
|
register int i; |
| 421 |
|
|
