| 17 |
|
#define MAXDIST 42 /* maximum distance outside section */ |
| 18 |
|
#endif |
| 19 |
|
#ifndef NVSAMPS |
| 20 |
< |
#define NVSAMPS 4096 /* number of ray samples per view */ |
| 20 |
> |
#define NVSAMPS 16384 /* number of ray samples per view */ |
| 21 |
|
#endif |
| 22 |
|
#ifndef MEYERNG |
| 23 |
< |
#define MEYERNG 0.2 /* target mean eye range (rel. to grid) */ |
| 23 |
> |
#define MEYERNG 0.1 /* target mean eye range (rel. to grid) */ |
| 24 |
|
#endif |
| 25 |
|
#ifndef MAXTODO |
| 26 |
|
#define MAXTODO 3 /* maximum sections to look at */ |
| 178 |
|
} |
| 179 |
|
|
| 180 |
|
|
| 181 |
< |
int |
| 181 |
> |
static int |
| 182 |
|
comptodo(tdl, vw) /* compute holodeck sections in view */ |
| 183 |
|
int tdl[MAXTODO+1]; |
| 184 |
|
VIEW *vw; |
| 221 |
|
} |
| 222 |
|
|
| 223 |
|
|
| 224 |
+ |
int |
| 225 |
|
addview(hd, vw, hres, vres) /* add view for section */ |
| 226 |
|
int hd; |
| 227 |
|
VIEW *vw; |
| 228 |
|
int hres, vres; |
| 229 |
|
{ |
| 230 |
< |
int sampquant; |
| 230 |
> |
int sampquant, samptot = 0; |
| 231 |
|
int h, v, shr, svr; |
| 232 |
|
GCOORD gc[2]; |
| 233 |
|
FVECT rorg, rdir; |
| 251 |
|
continue; |
| 252 |
|
cbeam[getcbeam(hd,hdbindex(hdlist[hd],gc))].nr += |
| 253 |
|
sampquant; |
| 254 |
+ |
samptot += sampquant; |
| 255 |
|
} |
| 256 |
+ |
return(samptot); |
| 257 |
|
} |
| 258 |
|
|
| 259 |
|
|
| 271 |
|
} |
| 272 |
|
|
| 273 |
|
|
| 274 |
+ |
int * |
| 275 |
|
beam_view(vn, hr, vr) /* add beam view (if advisable) */ |
| 276 |
|
VIEW *vn; |
| 277 |
|
int hr, vr; |
| 278 |
|
{ |
| 279 |
< |
int todo[MAXTODO+1], n; |
| 279 |
> |
static int todo[MAXTODO+1]; |
| 280 |
> |
int n; |
| 281 |
|
double hdgsiz, d; |
| 282 |
|
register HOLO *hp; |
| 283 |
|
register int i; |
| 284 |
+ |
/* find nearby sections */ |
| 285 |
+ |
if (!(n = comptodo(todo, vn))) |
| 286 |
+ |
return(NULL); |
| 287 |
|
/* sort our list */ |
| 288 |
|
cbeamsort(1); |
| 289 |
< |
/* add view to nearby sections */ |
| 282 |
< |
if (!(n = comptodo(todo, vn))) |
| 283 |
< |
return(0); |
| 289 |
> |
/* add view to flagged sections */ |
| 290 |
|
for (i = 0; i < n; i++) |
| 291 |
< |
addview(todo[i], vn, hr, vr); |
| 292 |
< |
if (MEYERNG <= FTINY || vn->type == VT_PAR) |
| 293 |
< |
return(1); |
| 294 |
< |
hdgsiz = 0.; d = 1./3. / n; /* compute mean grid size */ |
| 291 |
> |
if (!addview(todo[i], vn, hr, vr)) { /* whoops! */ |
| 292 |
> |
register int j; |
| 293 |
> |
n--; /* delete from list */ |
| 294 |
> |
for (j = i--; j <= n; j++) |
| 295 |
> |
todo[j] = todo[j+1]; |
| 296 |
> |
} |
| 297 |
> |
if (!n || MEYERNG <= FTINY || vn->type == VT_PAR) |
| 298 |
> |
return(todo); |
| 299 |
> |
hdgsiz = 0.; /* compute mean grid size */ |
| 300 |
|
for (i = 0; i < n; i++) { |
| 301 |
|
hp = hdlist[todo[i]]; |
| 302 |
< |
hdgsiz += d * ( VLEN(hp->xv[0])/hp->grid[0] + |
| 303 |
< |
VLEN(hp->xv[1])/hp->grid[1] + |
| 304 |
< |
VLEN(hp->xv[2])/hp->grid[2] ) ; |
| 302 |
> |
hdgsiz += 1./3. / VLEN(hp->wg[0]) + |
| 303 |
> |
1./3. / VLEN(hp->wg[1]) + |
| 304 |
> |
1./3. / VLEN(hp->wg[2]) ; |
| 305 |
|
} |
| 306 |
+ |
hdgsiz /= (double)n; |
| 307 |
|
/* add to current eye position */ |
| 308 |
|
if (cureye.rng <= FTINY) { |
| 309 |
|
VCOPY(cureye.vpt, vn->vp); |
| 314 |
|
cureye.vpt[i] = 0.5*(cureye.vpt[i] + vn->vp[i]); |
| 315 |
|
cureye.rng = 0.5*(cureye.rng + MEYERNG*hdgsiz + d); |
| 316 |
|
} |
| 317 |
< |
return(1); |
| 317 |
> |
return(todo); |
| 318 |
|
} |
| 319 |
|
|
| 320 |
|
|
