| 22 |
|
extern int nowarn; /* don't report warnings? */ |
| 23 |
|
|
| 24 |
|
/* current sensor's perspective */ |
| 25 |
< |
VIEW ourview = STDVIEW; |
| 25 |
> |
VIEW ourview = {VT_ANG,{0.,0.,0.},{0.,0.,1.},{1.,0.,0.}, |
| 26 |
> |
1.,180.,180.,0.,0.,0.,0., |
| 27 |
> |
{0.,0.,0.},{0.,0.,0.},0.,0.}; |
| 28 |
|
|
| 29 |
|
unsigned long nsamps = 10000; /* desired number of initial samples */ |
| 30 |
|
unsigned long nssamps = 9000; /* number of super-samples */ |
| 47 |
|
static void comp_sensor(char *sfile); |
| 48 |
|
|
| 49 |
|
static void |
| 50 |
< |
print_defaults() |
| 50 |
> |
over_options() /* overriding options */ |
| 51 |
|
{ |
| 52 |
+ |
directvis = (ndsamps <= 0); |
| 53 |
+ |
do_irrad = 0; |
| 54 |
+ |
} |
| 55 |
+ |
|
| 56 |
+ |
static void |
| 57 |
+ |
print_defaults() /* print out default parameters */ |
| 58 |
+ |
{ |
| 59 |
+ |
over_options(); |
| 60 |
|
printf("-n %-9d\t\t\t# number of processes\n", nprocs); |
| 61 |
|
printf("-rd %-9ld\t\t\t# ray directions\n", nsamps); |
| 62 |
|
/* printf("-rs %-9ld\t\t\t# ray super-samples\n", nssamps); */ |
| 78 |
|
) |
| 79 |
|
{ |
| 80 |
|
int doheader = 1; |
| 81 |
+ |
int optwarn = 0; |
| 82 |
|
int i, rval; |
| 83 |
|
|
| 84 |
|
progname = argv[0]; |
| 85 |
|
/* set up rendering defaults */ |
| 86 |
|
rand_samp = 1; |
| 87 |
< |
dstrsrc = 0.5; |
| 87 |
> |
dstrsrc = 0.65; |
| 88 |
|
srcsizerat = 0.1; |
| 89 |
|
directrelay = 3; |
| 90 |
|
ambounce = 1; |
| 91 |
|
maxdepth = -10; |
| 81 |
– |
/* just asking defaults? */ |
| 82 |
– |
if (argc == 2 && !strcmp(argv[1], "-defaults")) { |
| 83 |
– |
print_defaults(); |
| 84 |
– |
return(0); |
| 85 |
– |
} |
| 86 |
– |
/* check octree */ |
| 87 |
– |
if (argc < 2 || argv[argc-1][0] == '-') |
| 88 |
– |
error(USER, "missing octree argument"); |
| 92 |
|
/* get options from command line */ |
| 93 |
< |
for (i = 1; i < argc-1; i++) { |
| 93 |
> |
for (i = 1; i < argc; i++) { |
| 94 |
|
while ((rval = expandarg(&argc, &argv, i)) > 0) |
| 95 |
|
; |
| 96 |
|
if (rval < 0) { |
| 97 |
|
sprintf(errmsg, "cannot expand '%s'", argv[i]); |
| 98 |
|
error(SYSTEM, errmsg); |
| 99 |
|
} |
| 100 |
< |
if (argv[i][0] != '-') { /* process a sensor file */ |
| 100 |
> |
if (argv[i][0] != '-') { |
| 101 |
> |
if (i >= argc-1) |
| 102 |
> |
break; /* final octree argument */ |
| 103 |
|
if (!ray_pnprocs) { |
| 104 |
< |
/* overriding options */ |
| 100 |
< |
directvis = (ndsamps <= 0); |
| 101 |
< |
do_irrad = 0; |
| 104 |
> |
over_options(); |
| 105 |
|
if (doheader) { /* print header */ |
| 106 |
+ |
newheader("RADIANCE", stdout); |
| 107 |
|
printargs(argc, argv, stdout); |
| 108 |
|
fputformat("ascii", stdout); |
| 109 |
|
putchar('\n'); |
| 111 |
|
/* start process(es) */ |
| 112 |
|
ray_pinit(argv[argc-1], nprocs); |
| 113 |
|
} |
| 114 |
< |
comp_sensor(argv[i]); |
| 114 |
> |
comp_sensor(argv[i]); /* process a sensor file */ |
| 115 |
|
continue; |
| 116 |
|
} |
| 117 |
|
if (argv[i][1] == 'r') { /* sampling options */ |
| 154 |
|
sprintf(errmsg, "bad view option at '%s'", argv[i]); |
| 155 |
|
error(USER, errmsg); |
| 156 |
|
} |
| 157 |
< |
if (!strcmp(argv[i], "-w")) { /* turn off warnings */ |
| 158 |
< |
nowarn = 1; |
| 157 |
> |
if (!strcmp(argv[i], "-w")) { /* toggle warnings */ |
| 158 |
> |
nowarn = !nowarn; |
| 159 |
|
continue; |
| 160 |
|
} |
| 161 |
|
if (ray_pnprocs) { |
| 162 |
< |
error(WARNING, |
| 162 |
> |
if (!optwarn++) |
| 163 |
> |
error(WARNING, |
| 164 |
|
"rendering options should appear before first sensor"); |
| 165 |
|
} else if (!strcmp(argv[i], "-defaults")) { |
| 166 |
|
print_defaults(); |
| 183 |
|
} |
| 184 |
|
i += rval; |
| 185 |
|
} |
| 186 |
+ |
if (!ray_pnprocs) |
| 187 |
+ |
error(USER, i<argc ? "missing sensor file" : "missing octree"); |
| 188 |
|
quit(0); |
| 189 |
|
} |
| 190 |
|
|
| 377 |
|
"code error 2 in init_ptable()"); |
| 378 |
|
frac1 = 1. + prob/((1.-frac)*rowp[p]/rowsum[t] |
| 379 |
|
+ frac*rowp1[p]/rowsum[t+1]); |
| 373 |
– |
if (p <= 0 || frac1 > 0.5) |
| 374 |
– |
frac1 -= 0.5; |
| 375 |
– |
else if (p >= sntp[1]-1 || frac1 < 0.5) { |
| 376 |
– |
frac1 += 0.5; |
| 377 |
– |
--p; |
| 378 |
– |
} |
| 380 |
|
pvals[i*(nphi+1) + j] = (1.-frac1)*phdiv[p] + |
| 381 |
|
frac1*phdiv[p+1]; |
| 382 |
|
} |
| 462 |
|
int nt, np; |
| 463 |
|
COLOR vsum; |
| 464 |
|
RAY rr; |
| 465 |
+ |
double sf; |
| 466 |
|
int i, j; |
| 467 |
|
/* set view */ |
| 468 |
|
ourview.type = VT_ANG; |
| 473 |
|
error(USER, err); |
| 474 |
|
/* assign probability table */ |
| 475 |
|
init_ptable(sfile); |
| 476 |
< |
/* do Monte Carlo sampling */ |
| 476 |
> |
/* stratified MC sampling */ |
| 477 |
|
setcolor(vsum, .0f, .0f, .0f); |
| 478 |
|
nt = (int)(sqrt((double)nsamps*ntheta/nphi) + .5); |
| 479 |
|
np = nsamps/nt; |
| 480 |
< |
VCOPY(rr.rorg, ourview.vp); |
| 479 |
< |
rr.rmax = .0; |
| 480 |
> |
sf = gscale/nsamps; |
| 481 |
|
for (i = 0; i < nt; i++) |
| 482 |
|
for (j = 0; j < np; j++) { |
| 483 |
+ |
VCOPY(rr.rorg, ourview.vp); |
| 484 |
|
get_direc(rr.rdir, (i+frandom())/nt, (j+frandom())/np); |
| 485 |
+ |
if (ourview.vfore > FTINY) |
| 486 |
+ |
VSUM(rr.rorg, rr.rorg, rr.rdir, ourview.vfore); |
| 487 |
+ |
rr.rmax = .0; |
| 488 |
|
rayorigin(&rr, PRIMARY, NULL, NULL); |
| 489 |
+ |
scalecolor(rr.rcoef, sf); |
| 490 |
|
if (ray_pqueue(&rr) == 1) |
| 491 |
|
addcolor(vsum, rr.rcol); |
| 492 |
|
} |
| 493 |
< |
/* finish MC calculation */ |
| 494 |
< |
while (ray_presult(&rr, 0) > 0) |
| 495 |
< |
addcolor(vsum, rr.rcol); |
| 496 |
< |
scalecolor(vsum, gscale/(nt*np)); |
| 497 |
< |
/* compute direct component */ |
| 493 |
> |
/* remaining rays pure MC */ |
| 494 |
> |
for (i = nsamps - nt*np; i-- > 0; ) { |
| 495 |
> |
VCOPY(rr.rorg, ourview.vp); |
| 496 |
> |
get_direc(rr.rdir, frandom(), frandom()); |
| 497 |
> |
if (ourview.vfore > FTINY) |
| 498 |
> |
VSUM(rr.rorg, rr.rorg, rr.rdir, ourview.vfore); |
| 499 |
> |
rr.rmax = .0; |
| 500 |
> |
rayorigin(&rr, PRIMARY, NULL, NULL); |
| 501 |
> |
scalecolor(rr.rcoef, sf); |
| 502 |
> |
if (ray_pqueue(&rr) == 1) |
| 503 |
> |
addcolor(vsum, rr.rcol); |
| 504 |
> |
} |
| 505 |
> |
/* scale partial result */ |
| 506 |
> |
scalecolor(vsum, sf); |
| 507 |
> |
/* add direct component */ |
| 508 |
|
for (i = ndirs; i-- > 0; ) { |
| 509 |
|
SRCINDEX si; |
| 510 |
|
initsrcindex(&si); |
| 511 |
|
while (srcray(&rr, NULL, &si)) { |
| 512 |
< |
double d = sens_val(rr.rdir); |
| 513 |
< |
if (d <= FTINY) |
| 512 |
> |
sf = sens_val(rr.rdir); |
| 513 |
> |
if (sf <= FTINY) |
| 514 |
|
continue; |
| 515 |
< |
d *= si.dom/ndirs; |
| 516 |
< |
scalecolor(rr.rcoef, d); |
| 515 |
> |
sf *= si.dom/ndirs; |
| 516 |
> |
scalecolor(rr.rcoef, sf); |
| 517 |
|
if (ray_pqueue(&rr) == 1) { |
| 518 |
|
multcolor(rr.rcol, rr.rcoef); |
| 519 |
|
addcolor(vsum, rr.rcol); |
| 520 |
|
} |
| 521 |
|
} |
| 522 |
|
} |
| 523 |
< |
/* finish direct calculation */ |
| 523 |
> |
/* finish our calculation */ |
| 524 |
|
while (ray_presult(&rr, 0) > 0) { |
| 525 |
|
multcolor(rr.rcol, rr.rcoef); |
| 526 |
|
addcolor(vsum, rr.rcol); |
