| 8 |
|
use strict; |
| 9 |
|
use File::Temp qw/ :mktemp /; |
| 10 |
|
sub userror { |
| 11 |
< |
print STDERR "Usage: genBSDF [-n Nproc][-c Nsamp][-t{3|4} Nlog2][-r \"ropts\"][-dim xmin xmax ymin ymax zmin zmax][{+|-}f][{+|-}b][{+|-}mgf][{+|-}geom] [input ..]\n"; |
| 11 |
> |
print STDERR "Usage: genBSDF [-n Nproc][-c Nsamp][-t{3|4} Nlog2][-r \"ropts\"][-dim xmin xmax ymin ymax zmin zmax][{+|-}f][{+|-}b][{+|-}mgf][{+|-}geom units] [input ..]\n"; |
| 12 |
|
exit 1; |
| 13 |
|
} |
| 14 |
|
my $td = mkdtemp("/tmp/genBSDF.XXXXXX"); |
| 16 |
|
my @savedARGV = @ARGV; |
| 17 |
|
my $tensortree = 0; |
| 18 |
|
my $ttlog2 = 4; |
| 19 |
< |
my $nsamp = 1000; |
| 19 |
> |
my $nsamp = 2000; |
| 20 |
|
my $rtargs = "-w -ab 5 -ad 700 -lw 3e-6"; |
| 21 |
|
my $mgfin = 0; |
| 22 |
|
my $geout = 1; |
| 23 |
|
my $nproc = 1; |
| 24 |
|
my $doforw = 0; |
| 25 |
|
my $doback = 1; |
| 26 |
+ |
my $pctcull = 90; |
| 27 |
+ |
my $gunit = "Meter"; |
| 28 |
|
my @dim; |
| 29 |
|
# Get options |
| 30 |
|
while ($#ARGV >= 0) { |
| 35 |
|
shift @ARGV; |
| 36 |
|
} elsif ("$ARGV[0]" =~ /^[-+]g/) { |
| 37 |
|
$geout = ("$ARGV[0]" =~ /^\+/); |
| 38 |
+ |
$gunit = $ARGV[1]; |
| 39 |
+ |
if ($gunit !~ /^(?i)(meter|foot|inch|centimeter|millimeter)$/) { |
| 40 |
+ |
die "Illegal geometry unit '$gunit': must be meter, foot, inch, centimeter, or millimeter\n"; |
| 41 |
+ |
} |
| 42 |
+ |
shift @ARGV; |
| 43 |
|
} elsif ("$ARGV[0]" =~ /^[-+]f/) { |
| 44 |
|
$doforw = ("$ARGV[0]" =~ /^\+/); |
| 45 |
|
} elsif ("$ARGV[0]" =~ /^[-+]b/) { |
| 46 |
|
$doback = ("$ARGV[0]" =~ /^\+/); |
| 47 |
+ |
} elsif ("$ARGV[0]" eq "-t") { |
| 48 |
+ |
# Use value < 0 for rttree_reduce bypass |
| 49 |
+ |
$pctcull = $ARGV[1]; |
| 50 |
+ |
shift @ARGV; |
| 51 |
|
} elsif ("$ARGV[0]" =~ /^-t[34]$/) { |
| 52 |
|
$tensortree = substr($ARGV[0], 2, 1); |
| 53 |
|
$ttlog2 = $ARGV[1]; |
| 120 |
|
<Name>Name</Name> |
| 121 |
|
<Manufacturer>Manufacturer</Manufacturer> |
| 122 |
|
'; |
| 123 |
< |
printf "\t\t<Thickness unit=\"Meter\">%.3f</Thickness>\n", $dim[5] - $dim[4]; |
| 124 |
< |
printf "\t\t<Width unit=\"Meter\">%.3f</Width>\n", $dim[1] - $dim[0]; |
| 125 |
< |
printf "\t\t<Height unit=\"Meter\">%.3f</Height>\n", $dim[3] - $dim[2]; |
| 123 |
> |
printf "\t\t<Thickness unit=\"$gunit\">%.3f</Thickness>\n", $dim[5] - $dim[4]; |
| 124 |
> |
printf "\t\t<Width unit=\"$gunit\">%.3f</Width>\n", $dim[1] - $dim[0]; |
| 125 |
> |
printf "\t\t<Height unit=\"$gunit\">%.3f</Height>\n", $dim[3] - $dim[2]; |
| 126 |
|
print "\t\t<DeviceType>Integral</DeviceType>\n"; |
| 127 |
|
# Output MGF description if requested |
| 128 |
|
if ( $geout ) { |
| 129 |
< |
print "\t\t<Geometry format=\"MGF\" unit=\"Meter\">\n"; |
| 129 |
> |
print "\t\t<Geometry format=\"MGF\" unit=\"$gunit\">\n"; |
| 130 |
|
printf "xf -t %.6f %.6f 0\n", -($dim[0]+$dim[1])/2, -($dim[2]+$dim[3])/2; |
| 131 |
|
open(MGFSCN, "< $mgfscn"); |
| 132 |
|
while (<MGFSCN>) { print $_; } |
| 154 |
|
</WindowElement> |
| 155 |
|
'; |
| 156 |
|
# Clean up temporary files and exit |
| 146 |
– |
if ( $persistfile && open(PFI, "< $persistfile") ) { |
| 147 |
– |
while (<PFI>) { |
| 148 |
– |
s/^[^ ]* //; |
| 149 |
– |
kill('ALRM', $_); |
| 150 |
– |
last; |
| 151 |
– |
} |
| 152 |
– |
close PFI; |
| 153 |
– |
} |
| 157 |
|
exec("rm -rf $td"); |
| 158 |
|
|
| 159 |
|
#-------------- End of main program segment --------------# |
| 160 |
|
|
| 161 |
+ |
#++++++++++++++ Kill persistent rtrace +++++++++++++++++++# |
| 162 |
+ |
sub persist_end { |
| 163 |
+ |
if ( $persistfile && open(PFI, "< $persistfile") ) { |
| 164 |
+ |
while (<PFI>) { |
| 165 |
+ |
s/^[^ ]* //; |
| 166 |
+ |
kill('ALRM', $_); |
| 167 |
+ |
last; |
| 168 |
+ |
} |
| 169 |
+ |
close PFI; |
| 170 |
+ |
} |
| 171 |
+ |
} |
| 172 |
+ |
|
| 173 |
|
#++++++++++++++ Tensor tree BSDF generation ++++++++++++++# |
| 174 |
|
sub do_tree_bsdf { |
| 175 |
|
# Get sampling rate and subdivide task |
| 176 |
|
my $ns2 = $ns; |
| 177 |
|
$ns2 /= 2 if ( $tensortree == 3 ); |
| 178 |
< |
@pdiv = (0, int($ns2/$nproc)); |
| 179 |
< |
my $nrem = $ns2 % $nproc; |
| 180 |
< |
for (my $i = 1; $i < $nproc; $i++) { |
| 178 |
> |
my $nsplice = $nproc; |
| 179 |
> |
$nsplice *= 10 if ($nproc > 1); |
| 180 |
> |
$nsplice = $ns2 if ($nsplice > $ns2); |
| 181 |
> |
$nsplice = 999 if ($nsplice > 999); |
| 182 |
> |
@pdiv = (0, int($ns2/$nsplice)); |
| 183 |
> |
my $nrem = $ns2 % $nsplice; |
| 184 |
> |
for (my $i = 1; $i < $nsplice; $i++) { |
| 185 |
|
my $nv = $pdiv[$i] + $pdiv[1]; |
| 186 |
|
++$nv if ( $nrem-- > 0 ); |
| 187 |
|
push @pdiv, $nv; |
| 230 |
|
print "\t\t<IncidentDataStructure>TensorTree$tensortree</IncidentDataStructure>\n"; |
| 231 |
|
print "\t</DataDefinition>\n"; |
| 232 |
|
# Fork parallel rtcontrib processes to compute each side |
| 233 |
+ |
my $npleft = $nproc; |
| 234 |
|
if ( $doback ) { |
| 235 |
< |
for (my $proc = 0; $proc < $nproc; $proc++) { |
| 236 |
< |
bg_tree_rtcontrib(0, $proc); |
| 235 |
> |
for (my $splice = 0; $splice < $nsplice; $splice++) { |
| 236 |
> |
if (! $npleft ) { |
| 237 |
> |
wait(); |
| 238 |
> |
die "rtcontrib process reported error" if ( $? ); |
| 239 |
> |
$npleft++; |
| 240 |
> |
} |
| 241 |
> |
bg_tree_rtcontrib(0, $splice); |
| 242 |
> |
$npleft--; |
| 243 |
|
} |
| 244 |
|
while (wait() >= 0) { |
| 245 |
|
die "rtcontrib process reported error" if ( $? ); |
| 246 |
+ |
$npleft++; |
| 247 |
|
} |
| 248 |
+ |
persist_end(); |
| 249 |
|
ttree_out(0); |
| 250 |
|
} |
| 251 |
|
if ( $doforw ) { |
| 252 |
< |
for (my $proc = 0; $proc < $nproc; $proc++) { |
| 253 |
< |
bg_tree_rtcontrib(1, $proc); |
| 252 |
> |
for (my $splice = 0; $splice < $nsplice; $splice++) { |
| 253 |
> |
if (! $npleft ) { |
| 254 |
> |
wait(); |
| 255 |
> |
die "rtcontrib process reported error" if ( $? ); |
| 256 |
> |
$npleft++; |
| 257 |
> |
} |
| 258 |
> |
bg_tree_rtcontrib(1, $splice); |
| 259 |
> |
$npleft--; |
| 260 |
|
} |
| 261 |
|
while (wait() >= 0) { |
| 262 |
|
die "rtcontrib process reported error" if ( $? ); |
| 263 |
+ |
$npleft++; |
| 264 |
|
} |
| 265 |
+ |
persist_end(); |
| 266 |
|
ttree_out(1); |
| 267 |
|
} |
| 268 |
|
} # end of sub do_tree_bsdf() |
| 269 |
|
|
| 270 |
< |
# Run i'th rtcontrib process for generating tensor tree samples |
| 270 |
> |
# Run rtcontrib process in background to generate tensor tree samples |
| 271 |
|
sub bg_tree_rtcontrib { |
| 272 |
|
my $pid = fork(); |
| 273 |
|
die "Cannot fork new process" unless defined $pid; |
| 322 |
|
sub ttree_out { |
| 323 |
|
my $forw = shift; |
| 324 |
|
my $side = ("Back","Front")[$forw]; |
| 325 |
+ |
my $cmd; |
| 326 |
|
# Only output one transmitted distribution, preferring backwards |
| 327 |
|
if ( !$forw || !$doback ) { |
| 328 |
|
print |
| 337 |
|
<ScatteringDataType>BTDF</ScatteringDataType> |
| 338 |
|
<ScatteringData> |
| 339 |
|
'; |
| 340 |
< |
system "rcalc -if3 -e 'Omega:PI/($ns*$ns)' " . |
| 341 |
< |
q{-e '$1=(0.265*$1+0.670*$2+0.065*$3)/Omega' -of } . |
| 342 |
< |
"$td/" . ($bmodnm,$fmodnm)[$forw] . "_???.flt " . |
| 343 |
< |
"| rttree_reduce -h -ff -r $tensortree -g $ttlog2"; |
| 344 |
< |
die "Failure running rttree_reduce" if ( $? ); |
| 340 |
> |
$cmd = "rcalc -if3 -e 'Omega:PI/($ns*$ns)' " . |
| 341 |
> |
q{-e '$1=(0.265*$1+0.670*$2+0.065*$3)/Omega' }; |
| 342 |
> |
if ($pctcull >= 0) { |
| 343 |
> |
$cmd .= "-of $td/" . ($bmodnm,$fmodnm)[$forw] . "_???.flt " . |
| 344 |
> |
"| rttree_reduce -a -h -ff -t $pctcull -r $tensortree -g $ttlog2"; |
| 345 |
> |
system "$cmd" || die "Failure running rttree_reduce"; |
| 346 |
> |
} else { |
| 347 |
> |
$cmd .= "$td/" . ($bmodnm,$fmodnm)[$forw] . "_???.flt"; |
| 348 |
> |
print "{\n"; |
| 349 |
> |
system "$cmd" || die "Failure running rcalc"; |
| 350 |
> |
for (my $i = ($tensortree==3)*$ns*$ns*$ns/2; $i-- > 0; ) { |
| 351 |
> |
print "0\n"; |
| 352 |
> |
} |
| 353 |
> |
print "}\n"; |
| 354 |
> |
} |
| 355 |
|
print |
| 356 |
|
' </ScatteringData> |
| 357 |
|
</WavelengthDataBlock> |
| 373 |
|
<ScatteringDataType>BRDF</ScatteringDataType> |
| 374 |
|
<ScatteringData> |
| 375 |
|
'; |
| 376 |
< |
system "rcalc -if3 -e 'Omega:PI/($ns*$ns)' " . |
| 377 |
< |
q{-e '$1=(0.265*$1+0.670*$2+0.065*$3)/Omega' -of } . |
| 378 |
< |
"$td/" . ($fmodnm,$bmodnm)[$forw] . "_???.flt " . |
| 379 |
< |
"| rttree_reduce -h -ff -r $tensortree -g $ttlog2"; |
| 380 |
< |
die "Failure running rttree_reduce" if ( $? ); |
| 376 |
> |
$cmd = "rcalc -if3 -e 'Omega:PI/($ns*$ns)' " . |
| 377 |
> |
q{-e '$1=(0.265*$1+0.670*$2+0.065*$3)/Omega' }; |
| 378 |
> |
if ($pctcull >= 0) { |
| 379 |
> |
$cmd .= "-of $td/" . ($fmodnm,$bmodnm)[$forw] . "_???.flt " . |
| 380 |
> |
"| rttree_reduce -a -h -ff -t $pctcull -r $tensortree -g $ttlog2"; |
| 381 |
> |
system "$cmd" || die "Failure running rttree_reduce"; |
| 382 |
> |
} else { |
| 383 |
> |
$cmd .= "$td/" . ($fmodnm,$bmodnm)[$forw] . "_???.flt"; |
| 384 |
> |
print "{\n"; |
| 385 |
> |
system "$cmd" || die "Failure running rcalc"; |
| 386 |
> |
for (my $i = ($tensortree==3)*$ns*$ns*$ns/2; $i-- > 0; ) { |
| 387 |
> |
print "0\n"; |
| 388 |
> |
} |
| 389 |
> |
print "}\n"; |
| 390 |
> |
} |
| 391 |
|
print |
| 392 |
|
' </ScatteringData> |
| 393 |
|
</WavelengthDataBlock> |
| 425 |
|
$kcal = ' |
| 426 |
|
DEGREE : PI/180; |
| 427 |
|
abs(x) : if(x, x, -x); |
| 428 |
< |
Acos(x) : 1/DEGREE * if(x-1, 0, if(-1-x, 0, acos(x))); |
| 428 |
> |
Acos(x) : if(x-1, 0, if(-1-x, PI, acos(x))) / DEGREE; |
| 429 |
|
posangle(a) : if(-a, a + 2*PI, a); |
| 430 |
< |
Atan2(y,x) : 1/DEGREE * posangle(atan2(y,x)); |
| 430 |
> |
Atan2(y,x) : posangle(atan2(y,x)) / DEGREE; |
| 431 |
|
kpola(r) : select(r, 5, 15, 25, 35, 45, 55, 65, 75, 90); |
| 432 |
|
knaz(r) : select(r, 1, 8, 16, 20, 24, 24, 24, 16, 12); |
| 433 |
|
kaccum(r) : if(r-.5, knaz(r) + kaccum(r-1), 0); |
| 459 |
|
"-o '$td/%s.flt' -m $fmodnm -m $bmodnm $octree"; |
| 460 |
|
my $rccmd = "rcalc -e '$tcal' " . |
| 461 |
|
"-e 'mod(n,d):n-floor(n/d)*d' -e 'Kbin=mod(recno-.999,$ndiv)' " . |
| 462 |
< |
q{-if3 -e '$1=(0.265*$1+0.670*$2+0.065*$3)/KprojOmega'}; |
| 462 |
> |
q{-if3 -e '$1=(0.265*$1+0.670*$2+0.065*$3)/KprojOmega' }; |
| 463 |
|
if ( $doforw ) { |
| 464 |
|
$cmd = "cnt $ndiv $ny $nx | rcalc -of -e '$tcal' " . |
| 465 |
|
"-e 'xp=(\$3+rand(.12*recno+288))*(($dim[1]-$dim[0])/$nx)+$dim[0]' " . |
| 485 |
|
system "$cmd" || die "Failure running: $cmd\n"; |
| 486 |
|
@tbarr = `$rccmd $td/$bmodnm.flt`; |
| 487 |
|
die "Failure running: $rccmd $td/$bmodnm.flt\n" if ( $? ); |
| 488 |
+ |
chomp(@tbarr); |
| 489 |
|
@rbarr = `$rccmd $td/$fmodnm.flt`; |
| 490 |
|
die "Failure running: $rccmd $td/$fmodnm.flt\n" if ( $? ); |
| 491 |
+ |
chomp(@rbarr); |
| 492 |
|
} |
| 493 |
|
# Output angle basis |
| 494 |
|
print |
| 588 |
|
# Output front transmission (transposed order) |
| 589 |
|
for (my $od = 0; $od < $ndiv; $od++) { |
| 590 |
|
for (my $id = 0; $id < $ndiv; $id++) { |
| 591 |
< |
print $tfarr[$ndiv*$id + $od]; |
| 591 |
> |
print $tfarr[$ndiv*$id + $od], ",\n"; |
| 592 |
|
} |
| 593 |
|
print "\n"; |
| 594 |
|
} |
| 611 |
|
# Output front reflection (transposed order) |
| 612 |
|
for (my $od = 0; $od < $ndiv; $od++) { |
| 613 |
|
for (my $id = 0; $id < $ndiv; $id++) { |
| 614 |
< |
print $rfarr[$ndiv*$id + $od]; |
| 614 |
> |
print $rfarr[$ndiv*$id + $od], ",\n"; |
| 615 |
|
} |
| 616 |
|
print "\n"; |
| 617 |
|
} |
| 638 |
|
# Output back transmission (transposed order) |
| 639 |
|
for (my $od = 0; $od < $ndiv; $od++) { |
| 640 |
|
for (my $id = 0; $id < $ndiv; $id++) { |
| 641 |
< |
print $tbarr[$ndiv*$id + $od]; |
| 641 |
> |
print $tbarr[$ndiv*$id + $od], ",\n"; |
| 642 |
|
} |
| 643 |
|
print "\n"; |
| 644 |
|
} |
| 661 |
|
# Output back reflection (transposed order) |
| 662 |
|
for (my $od = 0; $od < $ndiv; $od++) { |
| 663 |
|
for (my $id = 0; $id < $ndiv; $id++) { |
| 664 |
< |
print $rbarr[$ndiv*$id + $od]; |
| 664 |
> |
print $rbarr[$ndiv*$id + $od], ",\n"; |
| 665 |
|
} |
| 666 |
|
print "\n"; |
| 667 |
|
} |
