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*/ |
8 |
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9 |
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#include "rcontrib.h" |
10 |
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#include "source.h" |
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#include "otypes.h" |
11 |
< |
#include "platform.h" |
11 |
> |
#include "source.h" |
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|
13 |
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char *shm_boundary = NULL; /* boundary of shared memory */ |
14 |
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|
26 |
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|
27 |
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int rand_samp = 1; /* pure Monte Carlo sampling? */ |
28 |
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|
29 |
< |
double dstrsrc = 0.0; /* square source distribution */ |
29 |
> |
double dstrsrc = 0.9; /* square source distribution */ |
30 |
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double shadthresh = .03; /* shadow threshold */ |
31 |
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double shadcert = .75; /* shadow certainty */ |
32 |
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int directrelay = 3; /* number of source relays */ |
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RNUMBER raysleft; /* number of rays left to trace */ |
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long waitflush; /* how long until next flush */ |
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|
65 |
< |
int lastray = 0; /* last ray number sent */ |
66 |
< |
int lastdone = 0; /* last ray output */ |
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> |
RNUMBER lastray = 0; /* last ray number sent */ |
66 |
> |
RNUMBER lastdone = 0; /* last ray output */ |
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|
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static void mcfree(void *p) { epfree((*(MODCONT *)p).binv); free(p); } |
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|
70 |
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LUTAB modconttab = LU_SINIT(NULL,mcfree); /* modifier lookup table */ |
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|
73 |
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static OBJECT traset[MAXTSET+1]={0}; /* trace include set */ |
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|
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/************************** INITIALIZATION ROUTINES ***********************/ |
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|
77 |
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void |
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tranotify( /* record new modifier */ |
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OBJECT obj |
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) |
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{ |
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static int hitlimit = 0; |
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OBJREC *o = objptr(obj); |
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int i; |
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|
86 |
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if (obj == OVOID) { /* starting over */ |
87 |
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traset[0] = 0; |
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hitlimit = 0; |
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return; |
90 |
– |
} |
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if (hitlimit || !ismodifier(o->otype)) |
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return; |
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for (i = nmods; i-- > 0; ) |
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if (!strcmp(o->oname, modname[i])) { |
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if (traset[0] >= MAXTSET) { |
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error(WARNING, "too many same-named modifiers"); |
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hitlimit++; |
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return; /* should this be fatal? */ |
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} |
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insertelem(traset, obj); |
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break; |
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} |
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} |
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|
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|
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char * |
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formstr( /* return format identifier */ |
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int f |
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} |
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|
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|
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/* add modifiers from a file list */ |
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/* Add modifiers from a file list */ |
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void |
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addmodfile(char *fname, char *outf, char *binv, int bincnt) |
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{ |
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) |
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{ |
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if (nchild > 0) /* close children if any */ |
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end_children(); |
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end_children(code != 0); |
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exit(code); |
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} |
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|
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/* set shared memory boundary */ |
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shm_boundary = strcpy((char *)malloc(16), "SHM_BOUNDARY"); |
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} |
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if ((nproc > 1) & (accumulate <= 0)) |
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put_zero_record(0); /* prime our queue to accumulate */ |
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|
215 |
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if (recover) { /* recover previous output? */ |
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if (accumulate <= 0) { |
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reload_output(); |
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if (nproc > 1) |
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< |
queue_modifiers(); |
220 |
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} else |
221 |
< |
recover_output(); |
222 |
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} |
180 |
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for (i = 0; i < nsources; i++) /* tracing to sources as well */ |
181 |
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source[i].sflags |= SFOLLOW; |
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if (yres > 0) { /* set up flushing & ray counts */ |
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if (xres > 0) |
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raysleft = (RNUMBER)xres*yres; |
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if ((account = accumulate) > 1) |
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raysleft *= accumulate; |
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waitflush = (yres > 0) & (xres > 1) ? 0 : xres; |
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/* tracing to sources as well */ |
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for (i = 0; i < nsources; i++) |
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source[i].sflags |= SFOLLOW; |
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|
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if (nproc == 1 || in_rchild()) /* single process or child */ |
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> |
if (nproc > 1 && in_rchild()) /* forked child? */ |
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return; /* return to main processing loop */ |
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|
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parental_loop(); /* else run controller */ |
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if (recover) { /* recover previous output? */ |
197 |
> |
if (accumulate <= 0) |
198 |
> |
reload_output(); |
199 |
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else |
200 |
> |
recover_output(); |
201 |
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} |
202 |
> |
if (nproc == 1) /* single process? */ |
203 |
> |
return; |
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/* else run appropriate controller */ |
205 |
> |
if (accumulate <= 0) |
206 |
> |
feeder_loop(); |
207 |
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else |
208 |
> |
parental_loop(); |
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quit(0); /* parent musn't return! */ |
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} |
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|
219 |
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int bn; |
220 |
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RREAL contr[3]; |
221 |
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|
222 |
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if (r->ro == NULL || !inset(traset, r->ro->omod)) |
222 |
> |
if (r->ro == NULL || r->ro->omod == OVOID) |
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return; |
224 |
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|
225 |
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mp = (MODCONT *)lu_find(&modconttab,objptr(r->ro->omod)->oname)->data; |
226 |
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|
227 |
< |
if (mp == NULL) |
228 |
< |
error(CONSISTENCY, "unexpected modifier in trace_contrib()"); |
227 |
> |
if (mp == NULL) /* not in our list? */ |
228 |
> |
return; |
229 |
> |
/* shadow ray not on source? */ |
230 |
> |
if (r->rsrc >= 0 && source[r->rsrc].so != r->ro) |
231 |
> |
return; |
232 |
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|
233 |
< |
worldfunc(RCCONTEXT, r); /* get bin number */ |
233 |
> |
worldfunc(RCCONTEXT, r); /* else get bin number */ |
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bn = (int)(evalue(mp->binv) + .5); |
235 |
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if ((bn < 0) | (bn >= mp->nbins)) { |
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error(WARNING, "bad bin number (ignored)"); |
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return; |
238 |
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} |
239 |
< |
raycontrib(contr, r, PRIMARY); |
239 |
> |
raycontrib(contr, r, PRIMARY); /* compute coefficient */ |
240 |
|
if (contrib) |
241 |
< |
multcolor(contr, r->rcol); |
241 |
> |
multcolor(contr, r->rcol); /* -> contribution */ |
242 |
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addcolor(mp->cbin[bn], contr); |
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} |
244 |
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|
245 |
|
|
246 |
+ |
/* Evaluate irradiance contributions */ |
247 |
|
static void |
248 |
< |
rayirrad( /* compute irradiance rather than radiance */ |
277 |
< |
RAY *r |
278 |
< |
) |
248 |
> |
eval_irrad(FVECT org, FVECT dir) |
249 |
|
{ |
250 |
< |
r->rot = 1e-5; /* pretend we hit surface */ |
251 |
< |
VSUM(r->rop, r->rorg, r->rdir, r->rot); |
252 |
< |
r->ron[0] = -r->rdir[0]; |
253 |
< |
r->ron[1] = -r->rdir[1]; |
254 |
< |
r->ron[2] = -r->rdir[2]; |
255 |
< |
r->rod = 1.0; |
256 |
< |
/* compute result */ |
257 |
< |
r->revf = raytrace; |
258 |
< |
(*ofun[Lamb.otype].funp)(&Lamb, r); |
259 |
< |
r->revf = rayirrad; |
250 |
> |
RAY thisray; |
251 |
> |
|
252 |
> |
VSUM(thisray.rorg, org, dir, 1.1e-4); |
253 |
> |
thisray.rdir[0] = -dir[0]; |
254 |
> |
thisray.rdir[1] = -dir[1]; |
255 |
> |
thisray.rdir[2] = -dir[2]; |
256 |
> |
thisray.rmax = 0.0; |
257 |
> |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
258 |
> |
/* pretend we hit surface */ |
259 |
> |
thisray.rt = thisray.rot = 1e-5; |
260 |
> |
thisray.rod = 1.0; |
261 |
> |
VCOPY(thisray.ron, dir); |
262 |
> |
VSUM(thisray.rop, org, dir, 1e-4); |
263 |
> |
samplendx++; /* compute result */ |
264 |
> |
(*ofun[Lamb.otype].funp)(&Lamb, &thisray); |
265 |
|
} |
266 |
|
|
267 |
|
|
268 |
< |
/* Evaluate ray contributions */ |
268 |
> |
/* Evaluate radiance contributions */ |
269 |
|
static void |
270 |
< |
eval_ray(FVECT org, FVECT dir, double dmax) |
270 |
> |
eval_rad(FVECT org, FVECT dir, double dmax) |
271 |
|
{ |
272 |
|
RAY thisray; |
273 |
|
/* set up ray */ |
274 |
+ |
VCOPY(thisray.rorg, org); |
275 |
+ |
VCOPY(thisray.rdir, dir); |
276 |
+ |
thisray.rmax = dmax; |
277 |
|
rayorigin(&thisray, PRIMARY, NULL, NULL); |
300 |
– |
if (imm_irrad) { |
301 |
– |
VSUM(thisray.rorg, org, dir, 1.1e-4); |
302 |
– |
thisray.rdir[0] = -dir[0]; |
303 |
– |
thisray.rdir[1] = -dir[1]; |
304 |
– |
thisray.rdir[2] = -dir[2]; |
305 |
– |
thisray.rmax = 0.0; |
306 |
– |
thisray.revf = rayirrad; |
307 |
– |
} else { |
308 |
– |
VCOPY(thisray.rorg, org); |
309 |
– |
VCOPY(thisray.rdir, dir); |
310 |
– |
thisray.rmax = dmax; |
311 |
– |
} |
278 |
|
samplendx++; /* call ray evaluation */ |
279 |
|
rayvalue(&thisray); |
280 |
|
} |
316 |
|
#endif |
317 |
|
while (getvec(orig) == 0 && getvec(direc) == 0) { |
318 |
|
d = normalize(direc); |
319 |
< |
if ((d == 0.0) & (accumulate != 1)) { |
319 |
> |
if (nchild != -1 && (d == 0.0) & (accumulate == 0)) { |
320 |
|
if (!ignore_warning_given++) |
321 |
|
error(WARNING, |
322 |
|
"dummy ray(s) ignored during accumulation\n"); |
326 |
|
lastray = lastdone = 0; |
327 |
|
++lastray; |
328 |
|
if (d == 0.0) { /* zero ==> flush */ |
329 |
< |
if ((yres <= 0) | (xres <= 0)) |
330 |
< |
waitflush = 1; /* flush right after */ |
331 |
< |
} else { /* else compute */ |
332 |
< |
eval_ray(orig, direc, lim_dist ? d : 0.0); |
329 |
> |
if ((yres <= 0) | (xres <= 1)) |
330 |
> |
waitflush = 1; /* flush after */ |
331 |
> |
if (nchild == -1) |
332 |
> |
account = 1; |
333 |
> |
} else if (imm_irrad) { /* else compute */ |
334 |
> |
eval_irrad(orig, direc); |
335 |
> |
} else { |
336 |
> |
eval_rad(orig, direc, lim_dist ? d : 0.0); |
337 |
|
} |
338 |
|
done_contrib(); /* accumulate/output */ |
339 |
|
++lastdone; |
340 |
|
if (raysleft && !--raysleft) |
341 |
|
break; /* preemptive EOI */ |
342 |
|
} |
343 |
< |
if (accumulate <= 0 || account < accumulate) { |
343 |
> |
if (nchild != -1 && (accumulate <= 0) | (account < accumulate)) { |
344 |
|
if (account < accumulate) { |
345 |
|
error(WARNING, "partial accumulation in final record"); |
346 |
|
accumulate -= account; |
348 |
|
account = 1; /* output accumulated totals */ |
349 |
|
done_contrib(); |
350 |
|
} |
351 |
+ |
lu_done(&ofiletab); /* close output files */ |
352 |
|
if (raysleft) |
353 |
|
error(USER, "unexpected EOF on input"); |
383 |
– |
lu_done(&ofiletab); /* close output files */ |
354 |
|
} |