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 |
|
|