| 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"); |
| 15 |
|
chomp $td; |
| 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 = $ARGV[1]; |
| 71 |
|
} |
| 72 |
|
# Check that we're actually being asked to do something |
| 73 |
|
die "Must have at least one of +forward or +backward\n" if (!$doforw && !$doback); |
| 62 |
– |
# Name our own persist file? |
| 63 |
– |
my $persistfile; |
| 64 |
– |
if ( $tensortree && $nproc > 1 && "$rtargs" !~ /-PP /) { |
| 65 |
– |
$persistfile = "$td/pfile.txt"; |
| 66 |
– |
$rtargs = "-PP $persistfile $rtargs"; |
| 67 |
– |
} |
| 74 |
|
# Get scene description and dimensions |
| 75 |
|
my $radscn = "$td/device.rad"; |
| 76 |
|
my $mgfscn = "$td/device.mgf"; |
| 104 |
|
print |
| 105 |
|
'<?xml version="1.0" encoding="UTF-8"?> |
| 106 |
|
<WindowElement xmlns="http://windows.lbl.gov" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://windows.lbl.gov/BSDF-v1.4.xsd"> |
| 107 |
< |
<WindowElementType>System</WindowElementType> |
| 107 |
> |
'; |
| 108 |
> |
print "<!-- File produced by: genBSDF @savedARGV -->\n"; |
| 109 |
> |
print |
| 110 |
> |
'<WindowElementType>System</WindowElementType> |
| 111 |
> |
<FileType>BSDF</FileType> |
| 112 |
|
<Optical> |
| 113 |
|
<Layer> |
| 114 |
|
<Material> |
| 115 |
|
<Name>Name</Name> |
| 116 |
|
<Manufacturer>Manufacturer</Manufacturer> |
| 117 |
|
'; |
| 118 |
< |
printf "\t\t<Thickness unit=\"Meter\">%.3f</Thickness>\n", $dim[5] - $dim[4]; |
| 119 |
< |
printf "\t\t<Width unit=\"Meter\">%.3f</Width>\n", $dim[1] - $dim[0]; |
| 120 |
< |
printf "\t\t<Height unit=\"Meter\">%.3f</Height>\n", $dim[3] - $dim[2]; |
| 121 |
< |
print "\t\t<DeviceType>Integral</DeviceType>\n"; |
| 118 |
> |
printf "\t\t<Thickness unit=\"$gunit\">%.3f</Thickness>\n", $dim[5] - $dim[4]; |
| 119 |
> |
printf "\t\t<Width unit=\"$gunit\">%.3f</Width>\n", $dim[1] - $dim[0]; |
| 120 |
> |
printf "\t\t<Height unit=\"$gunit\">%.3f</Height>\n", $dim[3] - $dim[2]; |
| 121 |
> |
print "\t\t<DeviceType>Other</DeviceType>\n"; |
| 122 |
> |
print " </Material>\n"; |
| 123 |
|
# Output MGF description if requested |
| 124 |
|
if ( $geout ) { |
| 125 |
< |
print "\t\t<Geometry format=\"MGF\" unit=\"Meter\">\n"; |
| 125 |
> |
print "\t<Geometry format=\"MGF\">\n"; |
| 126 |
> |
print "\t\t<MGFblock unit=\"$gunit\">\n"; |
| 127 |
|
printf "xf -t %.6f %.6f 0\n", -($dim[0]+$dim[1])/2, -($dim[2]+$dim[3])/2; |
| 128 |
|
open(MGFSCN, "< $mgfscn"); |
| 129 |
|
while (<MGFSCN>) { print $_; } |
| 130 |
|
close MGFSCN; |
| 131 |
|
print "xf\n"; |
| 132 |
< |
print "\t\t</Geometry>\n"; |
| 132 |
> |
print "</MGFblock>\n"; |
| 133 |
> |
print "\t</Geometry>\n"; |
| 134 |
|
} |
| 122 |
– |
print " </Material>\n"; |
| 135 |
|
# Set up surface sampling |
| 136 |
< |
my $nx = int(sqrt($nsamp*($dim[1]-$dim[0])/($dim[3]-$dim[2])) + .5); |
| 137 |
< |
my $ny = int($nsamp/$nx + .5); |
| 136 |
> |
my $nx = int(sqrt($nsamp*($dim[1]-$dim[0])/($dim[3]-$dim[2])) + 1); |
| 137 |
> |
my $ny = int($nsamp/$nx + 1); |
| 138 |
|
$nsamp = $nx * $ny; |
| 139 |
|
my $ns = 2**$ttlog2; |
| 140 |
|
my (@pdiv, $disk2sq, $sq2disk, $tcal, $kcal); |
| 151 |
|
</WindowElement> |
| 152 |
|
'; |
| 153 |
|
# Clean up temporary files and exit |
| 142 |
– |
if ( $persistfile && open(PFI, "< $persistfile") ) { |
| 143 |
– |
while (<PFI>) { |
| 144 |
– |
s/^[^ ]* //; |
| 145 |
– |
kill('ALRM', $_); |
| 146 |
– |
last; |
| 147 |
– |
} |
| 148 |
– |
close PFI; |
| 149 |
– |
} |
| 154 |
|
exec("rm -rf $td"); |
| 155 |
|
|
| 156 |
|
#-------------- End of main program segment --------------# |
| 157 |
|
|
| 158 |
|
#++++++++++++++ Tensor tree BSDF generation ++++++++++++++# |
| 159 |
|
sub do_tree_bsdf { |
| 156 |
– |
# Get sampling rate and subdivide task |
| 157 |
– |
my $ns2 = $ns; |
| 158 |
– |
$ns2 /= 2 if ( $tensortree == 3 ); |
| 159 |
– |
@pdiv = (0, int($ns2/$nproc)); |
| 160 |
– |
my $nrem = $ns2 % $nproc; |
| 161 |
– |
for (my $i = 1; $i < $nproc; $i++) { |
| 162 |
– |
my $nv = $pdiv[$i] + $pdiv[1]; |
| 163 |
– |
++$nv if ( $nrem-- > 0 ); |
| 164 |
– |
push @pdiv, $nv; |
| 165 |
– |
} |
| 166 |
– |
die "Script error 1" if ($pdiv[-1] != $ns2); |
| 160 |
|
# Shirley-Chiu mapping from unit square to disk |
| 161 |
|
$sq2disk = ' |
| 162 |
|
in_square_a = 2*in_square_x - 1; |
| 181 |
|
norm_radians(p) : if(-p - PI/4, p + 2*PI, p); |
| 182 |
|
in_disk_r = .999995*sqrt(Dx*Dx + Dy*Dy); |
| 183 |
|
in_disk_phi = norm_radians(atan2(Dy, Dx)); |
| 184 |
< |
in_disk_rgn = floor((in_disk_phi + PI/4)/(PI/2)) + 1; |
| 184 |
> |
in_disk_rgn = floor((.999995*in_disk_phi + PI/4)/(PI/2)) + 1; |
| 185 |
|
out_square_a = select(in_disk_rgn, |
| 186 |
|
in_disk_r, |
| 187 |
|
(PI/2 - in_disk_phi)*in_disk_r/(PI/4), |
| 199 |
|
print "\t<DataDefinition>\n"; |
| 200 |
|
print "\t\t<IncidentDataStructure>TensorTree$tensortree</IncidentDataStructure>\n"; |
| 201 |
|
print "\t</DataDefinition>\n"; |
| 202 |
< |
# Fork parallel rtcontrib processes to compute each side |
| 203 |
< |
if ( $doback ) { |
| 204 |
< |
for (my $proc = 0; $proc < $nproc; $proc++) { |
| 205 |
< |
bg_tree_rtcontrib(0, $proc); |
| 206 |
< |
} |
| 214 |
< |
while (wait() >= 0) { |
| 215 |
< |
die "rtcontrib process reported error" if ( $? ); |
| 216 |
< |
} |
| 217 |
< |
ttree_out(0); |
| 218 |
< |
} |
| 219 |
< |
if ( $doforw ) { |
| 220 |
< |
for (my $proc = 0; $proc < $nproc; $proc++) { |
| 221 |
< |
bg_tree_rtcontrib(1, $proc); |
| 222 |
< |
} |
| 223 |
< |
while (wait() >= 0) { |
| 224 |
< |
die "rtcontrib process reported error" if ( $? ); |
| 225 |
< |
} |
| 226 |
< |
ttree_out(1); |
| 227 |
< |
} |
| 202 |
> |
|
| 203 |
> |
# Start rcontrib processes for compute each side |
| 204 |
> |
do_tree_rtcontrib(0) if ( $doback ); |
| 205 |
> |
do_tree_rtcontrib(1) if ( $doforw ); |
| 206 |
> |
|
| 207 |
|
} # end of sub do_tree_bsdf() |
| 208 |
|
|
| 209 |
< |
# Run i'th rtcontrib process for generating tensor tree samples |
| 210 |
< |
sub bg_tree_rtcontrib { |
| 232 |
< |
my $pid = fork(); |
| 233 |
< |
die "Cannot fork new process" unless defined $pid; |
| 234 |
< |
if ($pid > 0) { return $pid; } |
| 209 |
> |
# Run rcontrib process to generate tensor tree samples |
| 210 |
> |
sub do_tree_rtcontrib { |
| 211 |
|
my $forw = shift; |
| 236 |
– |
my $pn = shift; |
| 237 |
– |
my $pbeg = $pdiv[$pn]; |
| 238 |
– |
my $plen = $pdiv[$pn+1] - $pbeg; |
| 212 |
|
my $matargs = "-m $bmodnm"; |
| 213 |
< |
if ( !$forw || !$doback ) { $matargs .= " -m $fmodnm"; } |
| 214 |
< |
my $cmd = "rtcontrib $rtargs -h -ff -fo -c $nsamp " . |
| 213 |
> |
if ( !$forw || !$doback || $tensortree==3 ) { $matargs .= " -m $fmodnm"; } |
| 214 |
> |
my $cmd = "rcontrib $rtargs -h -ff -fo -n $nproc -c $nsamp " . |
| 215 |
|
"-e '$disk2sq' -bn '$ns*$ns' " . |
| 216 |
|
"-b '$ns*floor(out_square_x*$ns)+floor(out_square_y*$ns)' " . |
| 217 |
< |
"-o $td/%s_" . sprintf("%03d", $pn) . ".flt $matargs $octree"; |
| 217 |
> |
"-o $td/%s.flt $matargs $octree"; |
| 218 |
|
if ( $tensortree == 3 ) { |
| 219 |
|
# Isotropic BSDF |
| 220 |
< |
$cmd = "cnt $plen $ny $nx " . |
| 221 |
< |
"| rcalc -e 'r1=rand(($pn+.8681)*recno-.673892)' " . |
| 222 |
< |
"-e 'r2=rand(($pn-5.37138)*recno+67.1737811)' " . |
| 223 |
< |
"-e 'r3=rand(($pn+3.17603772)*recno+83.766771)' " . |
| 224 |
< |
"-e 'Dx=1-($pbeg+\$1+r1)/$ns;Dy:0;Dz=sqrt(1-Dx*Dx)' " . |
| 220 |
> |
my $ns2 = $ns / 2; |
| 221 |
> |
$cmd = "cnt $ns2 $ny $nx " . |
| 222 |
> |
"| rcalc -e 'r1=rand(.8681*recno-.673892)' " . |
| 223 |
> |
"-e 'r2=rand(-5.37138*recno+67.1737811)' " . |
| 224 |
> |
"-e 'r3=rand(+3.17603772*recno+83.766771)' " . |
| 225 |
> |
"-e 'Dx=1-2*(\$1+r1)/$ns;Dy:0;Dz=sqrt(1-Dx*Dx)' " . |
| 226 |
|
"-e 'xp=(\$3+r2)*(($dim[1]-$dim[0])/$nx)+$dim[0]' " . |
| 227 |
|
"-e 'yp=(\$2+r3)*(($dim[3]-$dim[2])/$ny)+$dim[2]' " . |
| 228 |
|
"-e 'zp=$dim[5-$forw]' -e 'myDz=Dz*($forw*2-1)' " . |
| 233 |
|
# Anisotropic BSDF |
| 234 |
|
# Sample area vertically to improve load balance, since |
| 235 |
|
# shading systems usually have bilateral symmetry (L-R) |
| 236 |
< |
$cmd = "cnt $plen $ns $ny $nx " . |
| 237 |
< |
"| rcalc -e 'r1=rand(($pn+.8681)*recno-.673892)' " . |
| 238 |
< |
"-e 'r2=rand(($pn-5.37138)*recno+67.1737811)' " . |
| 239 |
< |
"-e 'r3=rand(($pn+3.17603772)*recno+83.766771)' " . |
| 240 |
< |
"-e 'r4=rand(($pn-2.3857833)*recno-964.72738)' " . |
| 241 |
< |
"-e 'in_square_x=($pbeg+\$1+r1)/$ns' " . |
| 236 |
> |
$cmd = "cnt $ns $ns $ny $nx " . |
| 237 |
> |
"| rcalc -e 'r1=rand(.8681*recno-.673892)' " . |
| 238 |
> |
"-e 'r2=rand(-5.37138*recno+67.1737811)' " . |
| 239 |
> |
"-e 'r3=rand(3.17603772*recno+83.766771)' " . |
| 240 |
> |
"-e 'r4=rand(-2.3857833*recno-964.72738)' " . |
| 241 |
> |
"-e 'in_square_x=(\$1+r1)/$ns' " . |
| 242 |
|
"-e 'in_square_y=(\$2+r2)/$ns' -e '$sq2disk' " . |
| 243 |
|
"-e 'xp=(\$4+r3)*(($dim[1]-$dim[0])/$nx)+$dim[0]' " . |
| 244 |
|
"-e 'yp=(\$3+r4)*(($dim[3]-$dim[2])/$ny)+$dim[2]' " . |
| 248 |
|
"| $cmd"; |
| 249 |
|
} |
| 250 |
|
# print STDERR "Starting: $cmd\n"; |
| 251 |
< |
exec($cmd); # no return; status report to parent via wait |
| 252 |
< |
die "Cannot exec: $cmd\n"; |
| 253 |
< |
} # end of bg_tree_rtcontrib() |
| 251 |
> |
system "$cmd" || die "Failure running rcontrib"; |
| 252 |
> |
ttree_out($forw); |
| 253 |
> |
} # end of do_tree_rtcontrib() |
| 254 |
|
|
| 255 |
|
# Simplify and output tensor tree results |
| 256 |
|
sub ttree_out { |
| 257 |
|
my $forw = shift; |
| 258 |
|
my $side = ("Back","Front")[$forw]; |
| 259 |
< |
# Only output one transmitted distribution, preferring backwards |
| 260 |
< |
if ( !$forw || !$doback ) { |
| 259 |
> |
my $cmd; |
| 260 |
> |
# Only output one transmitted anisotropic distribution, preferring backwards |
| 261 |
> |
if ( !$forw || !$doback || $tensortree==3 ) { |
| 262 |
|
print |
| 263 |
|
' <WavelengthData> |
| 264 |
|
<LayerNumber>System</LayerNumber> |
| 266 |
|
<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum> |
| 267 |
|
<DetectorSpectrum>ASTM E308 1931 Y.dsp</DetectorSpectrum> |
| 268 |
|
<WavelengthDataBlock> |
| 269 |
< |
<WavelengthDataDirection>Transmission</WavelengthDataDirection> |
| 270 |
< |
<AngleBasis>LBNL/Shirley-Chiu</AngleBasis> |
| 269 |
> |
'; |
| 270 |
> |
print "\t\t\t<WavelengthDataDirection>Transmission $side</WavelengthDataDirection>\n"; |
| 271 |
> |
print |
| 272 |
> |
' <AngleBasis>LBNL/Shirley-Chiu</AngleBasis> |
| 273 |
|
<ScatteringDataType>BTDF</ScatteringDataType> |
| 274 |
|
<ScatteringData> |
| 275 |
|
'; |
| 276 |
< |
system "rcalc -if3 -e 'Omega:PI/($ns*$ns)' " . |
| 277 |
< |
q{-e '$1=(0.265*$1+0.670*$2+0.065*$3)/Omega' -of } . |
| 278 |
< |
"$td/" . ($bmodnm,$fmodnm)[$forw] . "_???.flt " . |
| 279 |
< |
"| rttree_reduce -h -ff -r $tensortree -g $ttlog2"; |
| 280 |
< |
die "Failure running rttree_reduce" if ( $? ); |
| 276 |
> |
$cmd = "rcalc -if3 -e 'Omega:PI/($ns*$ns)' " . |
| 277 |
> |
q{-e '$1=(0.265*$1+0.670*$2+0.065*$3)/Omega' }; |
| 278 |
> |
if ($pctcull >= 0) { |
| 279 |
> |
$cmd .= "-of $td/" . ($bmodnm,$fmodnm)[$forw] . ".flt " . |
| 280 |
> |
"| rttree_reduce -h -ff -t $pctcull -r $tensortree -g $ttlog2"; |
| 281 |
> |
$cmd .= " -a" if ($tensortree == 3); |
| 282 |
> |
system "$cmd" || die "Failure running rttree_reduce"; |
| 283 |
> |
} else { |
| 284 |
> |
$cmd .= "$td/" . ($bmodnm,$fmodnm)[$forw] . ".flt"; |
| 285 |
> |
print "{\n"; |
| 286 |
> |
system "$cmd" || die "Failure running rcalc"; |
| 287 |
> |
for (my $i = ($tensortree==3)*$ns*$ns*$ns/2; $i-- > 0; ) { |
| 288 |
> |
print "0\n"; |
| 289 |
> |
} |
| 290 |
> |
print "}\n"; |
| 291 |
> |
} |
| 292 |
|
print |
| 293 |
|
' </ScatteringData> |
| 294 |
|
</WavelengthDataBlock> |
| 305 |
|
<WavelengthDataBlock> |
| 306 |
|
'; |
| 307 |
|
print "\t\t\t<WavelengthDataDirection>Reflection $side</WavelengthDataDirection>\n"; |
| 308 |
< |
print ' |
| 309 |
< |
<AngleBasis>LBNL/Shirley-Chiu</AngleBasis> |
| 310 |
< |
<ScatteringDataType>BRDF</ScatteringDataType> |
| 308 |
> |
print |
| 309 |
> |
' <AngleBasis>LBNL/Shirley-Chiu</AngleBasis> |
| 310 |
> |
<ScatteringDataType>BTDF</ScatteringDataType> |
| 311 |
|
<ScatteringData> |
| 312 |
|
'; |
| 313 |
< |
system "rcalc -if3 -e 'Omega:PI/($ns*$ns)' " . |
| 314 |
< |
q{-e '$1=(0.265*$1+0.670*$2+0.065*$3)/Omega' -of } . |
| 315 |
< |
"$td/" . ($fmodnm,$bmodnm)[$forw] . "_???.flt " . |
| 316 |
< |
"| rttree_reduce -h -ff -r $tensortree -g $ttlog2"; |
| 317 |
< |
die "Failure running rttree_reduce" if ( $? ); |
| 313 |
> |
$cmd = "rcalc -if3 -e 'Omega:PI/($ns*$ns)' " . |
| 314 |
> |
q{-e '$1=(0.265*$1+0.670*$2+0.065*$3)/Omega' }; |
| 315 |
> |
if ($pctcull >= 0) { |
| 316 |
> |
$cmd .= "-of $td/" . ($fmodnm,$bmodnm)[$forw] . ".flt " . |
| 317 |
> |
"| rttree_reduce -a -h -ff -t $pctcull -r $tensortree -g $ttlog2"; |
| 318 |
> |
system "$cmd" || die "Failure running rttree_reduce"; |
| 319 |
> |
} else { |
| 320 |
> |
$cmd .= "$td/" . ($fmodnm,$bmodnm)[$forw] . ".flt"; |
| 321 |
> |
print "{\n"; |
| 322 |
> |
system "$cmd" || die "Failure running rcalc"; |
| 323 |
> |
for (my $i = ($tensortree==3)*$ns*$ns*$ns/2; $i-- > 0; ) { |
| 324 |
> |
print "0\n"; |
| 325 |
> |
} |
| 326 |
> |
print "}\n"; |
| 327 |
> |
} |
| 328 |
|
print |
| 329 |
|
' </ScatteringData> |
| 330 |
|
</WavelengthDataBlock> |
| 341 |
|
$tcal = ' |
| 342 |
|
DEGREE : PI/180; |
| 343 |
|
sq(x) : x*x; |
| 344 |
< |
Kpola(r) : select(r+1, -5, 5, 15, 25, 35, 45, 55, 65, 75, 90); |
| 344 |
> |
Kpola(r) : select(r+1, 0, 5, 15, 25, 35, 45, 55, 65, 75, 90); |
| 345 |
|
Knaz(r) : select(r, 1, 8, 16, 20, 24, 24, 24, 16, 12); |
| 346 |
|
Kaccum(r) : if(r-.5, Knaz(r) + Kaccum(r-1), 0); |
| 347 |
|
Kmax : Kaccum(Knaz(0)); |
| 362 |
|
$kcal = ' |
| 363 |
|
DEGREE : PI/180; |
| 364 |
|
abs(x) : if(x, x, -x); |
| 365 |
< |
Acos(x) : 1/DEGREE * if(x-1, 0, if(-1-x, 0, acos(x))); |
| 365 |
> |
Acos(x) : if(x-1, 0, if(-1-x, PI, acos(x))) / DEGREE; |
| 366 |
|
posangle(a) : if(-a, a + 2*PI, a); |
| 367 |
< |
Atan2(y,x) : 1/DEGREE * posangle(atan2(y,x)); |
| 367 |
> |
Atan2(y,x) : posangle(atan2(y,x)) / DEGREE; |
| 368 |
|
kpola(r) : select(r, 5, 15, 25, 35, 45, 55, 65, 75, 90); |
| 369 |
|
knaz(r) : select(r, 1, 8, 16, 20, 24, 24, 24, 16, 12); |
| 370 |
|
kaccum(r) : if(r-.5, knaz(r) + kaccum(r-1), 0); |
| 385 |
|
kbin = kbin2(Acos(abs(Dz)),Atan2(Dy,Dx)); |
| 386 |
|
'; |
| 387 |
|
my $ndiv = 145; |
| 388 |
< |
# Compute scattering data using rtcontrib |
| 388 |
> |
# Compute scattering data using rcontrib |
| 389 |
|
my @tfarr; |
| 390 |
|
my @rfarr; |
| 391 |
|
my @tbarr; |
| 392 |
|
my @rbarr; |
| 393 |
|
my $cmd; |
| 394 |
< |
my $rtcmd = "rtcontrib $rtargs -h -ff -fo -n $nproc -c $nsamp " . |
| 394 |
> |
my $rtcmd = "rcontrib $rtargs -h -ff -fo -n $nproc -c $nsamp " . |
| 395 |
|
"-e '$kcal' -b kbin -bn $ndiv " . |
| 396 |
|
"-o '$td/%s.flt' -m $fmodnm -m $bmodnm $octree"; |
| 397 |
|
my $rccmd = "rcalc -e '$tcal' " . |
| 398 |
|
"-e 'mod(n,d):n-floor(n/d)*d' -e 'Kbin=mod(recno-.999,$ndiv)' " . |
| 399 |
< |
q{-if3 -e '$1=(0.265*$1+0.670*$2+0.065*$3)/KprojOmega'}; |
| 399 |
> |
q{-if3 -e '$1=(0.265*$1+0.670*$2+0.065*$3)/KprojOmega' }; |
| 400 |
|
if ( $doforw ) { |
| 401 |
|
$cmd = "cnt $ndiv $ny $nx | rcalc -of -e '$tcal' " . |
| 402 |
|
"-e 'xp=(\$3+rand(.12*recno+288))*(($dim[1]-$dim[0])/$nx)+$dim[0]' " . |
| 408 |
|
system "$cmd" || die "Failure running: $cmd\n"; |
| 409 |
|
@tfarr = `$rccmd $td/$fmodnm.flt`; |
| 410 |
|
die "Failure running: $rccmd $td/$fmodnm.flt\n" if ( $? ); |
| 411 |
+ |
chomp(@tfarr); |
| 412 |
|
@rfarr = `$rccmd $td/$bmodnm.flt`; |
| 413 |
|
die "Failure running: $rccmd $td/$bmodnm.flt\n" if ( $? ); |
| 414 |
+ |
chomp(@rfarr); |
| 415 |
|
} |
| 416 |
|
if ( $doback ) { |
| 417 |
|
$cmd = "cnt $ndiv $ny $nx | rcalc -of -e '$tcal' " . |
| 424 |
|
system "$cmd" || die "Failure running: $cmd\n"; |
| 425 |
|
@tbarr = `$rccmd $td/$bmodnm.flt`; |
| 426 |
|
die "Failure running: $rccmd $td/$bmodnm.flt\n" if ( $? ); |
| 427 |
+ |
chomp(@tbarr); |
| 428 |
|
@rbarr = `$rccmd $td/$fmodnm.flt`; |
| 429 |
|
die "Failure running: $rccmd $td/$fmodnm.flt\n" if ( $? ); |
| 430 |
+ |
chomp(@rbarr); |
| 431 |
|
} |
| 432 |
|
# Output angle basis |
| 433 |
|
print |
| 436 |
|
<AngleBasis> |
| 437 |
|
<AngleBasisName>LBNL/Klems Full</AngleBasisName> |
| 438 |
|
<AngleBasisBlock> |
| 439 |
< |
<Theta>0</Theta> |
| 440 |
< |
<nPhis>1</nPhis> |
| 441 |
< |
<ThetaBounds> |
| 442 |
< |
<LowerTheta>0</LowerTheta> |
| 443 |
< |
<UpperTheta>5</UpperTheta> |
| 444 |
< |
</ThetaBounds> |
| 443 |
< |
</AngleBasisBlock> |
| 444 |
< |
<AngleBasisBlock> |
| 445 |
< |
<Theta>10</Theta> |
| 446 |
< |
<nPhis>8</nPhis> |
| 447 |
< |
<ThetaBounds> |
| 448 |
< |
<LowerTheta>5</LowerTheta> |
| 449 |
< |
<UpperTheta>15</UpperTheta> |
| 450 |
< |
</ThetaBounds> |
| 451 |
< |
</AngleBasisBlock> |
| 452 |
< |
<AngleBasisBlock> |
| 453 |
< |
<Theta>20</Theta> |
| 454 |
< |
<nPhis>16</nPhis> |
| 455 |
< |
<ThetaBounds> |
| 456 |
< |
<LowerTheta>15</LowerTheta> |
| 457 |
< |
<UpperTheta>25</UpperTheta> |
| 458 |
< |
</ThetaBounds> |
| 459 |
< |
</AngleBasisBlock> |
| 460 |
< |
<AngleBasisBlock> |
| 461 |
< |
<Theta>30</Theta> |
| 462 |
< |
<nPhis>20</nPhis> |
| 463 |
< |
<ThetaBounds> |
| 464 |
< |
<LowerTheta>25</LowerTheta> |
| 465 |
< |
<UpperTheta>35</UpperTheta> |
| 466 |
< |
</ThetaBounds> |
| 467 |
< |
</AngleBasisBlock> |
| 468 |
< |
<AngleBasisBlock> |
| 469 |
< |
<Theta>40</Theta> |
| 470 |
< |
<nPhis>24</nPhis> |
| 471 |
< |
<ThetaBounds> |
| 472 |
< |
<LowerTheta>35</LowerTheta> |
| 473 |
< |
<UpperTheta>45</UpperTheta> |
| 474 |
< |
</ThetaBounds> |
| 475 |
< |
</AngleBasisBlock> |
| 476 |
< |
<AngleBasisBlock> |
| 477 |
< |
<Theta>50</Theta> |
| 478 |
< |
<nPhis>24</nPhis> |
| 479 |
< |
<ThetaBounds> |
| 480 |
< |
<LowerTheta>45</LowerTheta> |
| 481 |
< |
<UpperTheta>55</UpperTheta> |
| 482 |
< |
</ThetaBounds> |
| 483 |
< |
</AngleBasisBlock> |
| 484 |
< |
<AngleBasisBlock> |
| 485 |
< |
<Theta>60</Theta> |
| 486 |
< |
<nPhis>24</nPhis> |
| 487 |
< |
<ThetaBounds> |
| 488 |
< |
<LowerTheta>55</LowerTheta> |
| 489 |
< |
<UpperTheta>65</UpperTheta> |
| 490 |
< |
</ThetaBounds> |
| 491 |
< |
</AngleBasisBlock> |
| 492 |
< |
<AngleBasisBlock> |
| 493 |
< |
<Theta>70</Theta> |
| 494 |
< |
<nPhis>16</nPhis> |
| 495 |
< |
<ThetaBounds> |
| 496 |
< |
<LowerTheta>65</LowerTheta> |
| 497 |
< |
<UpperTheta>75</UpperTheta> |
| 498 |
< |
</ThetaBounds> |
| 499 |
< |
</AngleBasisBlock> |
| 500 |
< |
<AngleBasisBlock> |
| 501 |
< |
<Theta>82.5</Theta> |
| 502 |
< |
<nPhis>12</nPhis> |
| 503 |
< |
<ThetaBounds> |
| 504 |
< |
<LowerTheta>75</LowerTheta> |
| 505 |
< |
<UpperTheta>90</UpperTheta> |
| 506 |
< |
</ThetaBounds> |
| 439 |
> |
<Theta>0</Theta> |
| 440 |
> |
<nPhis>1</nPhis> |
| 441 |
> |
<ThetaBounds> |
| 442 |
> |
<LowerTheta>0</LowerTheta> |
| 443 |
> |
<UpperTheta>5</UpperTheta> |
| 444 |
> |
</ThetaBounds> |
| 445 |
|
</AngleBasisBlock> |
| 446 |
+ |
<AngleBasisBlock> |
| 447 |
+ |
<Theta>10</Theta> |
| 448 |
+ |
<nPhis>8</nPhis> |
| 449 |
+ |
<ThetaBounds> |
| 450 |
+ |
<LowerTheta>5</LowerTheta> |
| 451 |
+ |
<UpperTheta>15</UpperTheta> |
| 452 |
+ |
</ThetaBounds> |
| 453 |
+ |
</AngleBasisBlock> |
| 454 |
+ |
<AngleBasisBlock> |
| 455 |
+ |
<Theta>20</Theta> |
| 456 |
+ |
<nPhis>16</nPhis> |
| 457 |
+ |
<ThetaBounds> |
| 458 |
+ |
<LowerTheta>15</LowerTheta> |
| 459 |
+ |
<UpperTheta>25</UpperTheta> |
| 460 |
+ |
</ThetaBounds> |
| 461 |
+ |
</AngleBasisBlock> |
| 462 |
+ |
<AngleBasisBlock> |
| 463 |
+ |
<Theta>30</Theta> |
| 464 |
+ |
<nPhis>20</nPhis> |
| 465 |
+ |
<ThetaBounds> |
| 466 |
+ |
<LowerTheta>25</LowerTheta> |
| 467 |
+ |
<UpperTheta>35</UpperTheta> |
| 468 |
+ |
</ThetaBounds> |
| 469 |
+ |
</AngleBasisBlock> |
| 470 |
+ |
<AngleBasisBlock> |
| 471 |
+ |
<Theta>40</Theta> |
| 472 |
+ |
<nPhis>24</nPhis> |
| 473 |
+ |
<ThetaBounds> |
| 474 |
+ |
<LowerTheta>35</LowerTheta> |
| 475 |
+ |
<UpperTheta>45</UpperTheta> |
| 476 |
+ |
</ThetaBounds> |
| 477 |
+ |
</AngleBasisBlock> |
| 478 |
+ |
<AngleBasisBlock> |
| 479 |
+ |
<Theta>50</Theta> |
| 480 |
+ |
<nPhis>24</nPhis> |
| 481 |
+ |
<ThetaBounds> |
| 482 |
+ |
<LowerTheta>45</LowerTheta> |
| 483 |
+ |
<UpperTheta>55</UpperTheta> |
| 484 |
+ |
</ThetaBounds> |
| 485 |
+ |
</AngleBasisBlock> |
| 486 |
+ |
<AngleBasisBlock> |
| 487 |
+ |
<Theta>60</Theta> |
| 488 |
+ |
<nPhis>24</nPhis> |
| 489 |
+ |
<ThetaBounds> |
| 490 |
+ |
<LowerTheta>55</LowerTheta> |
| 491 |
+ |
<UpperTheta>65</UpperTheta> |
| 492 |
+ |
</ThetaBounds> |
| 493 |
+ |
</AngleBasisBlock> |
| 494 |
+ |
<AngleBasisBlock> |
| 495 |
+ |
<Theta>70</Theta> |
| 496 |
+ |
<nPhis>16</nPhis> |
| 497 |
+ |
<ThetaBounds> |
| 498 |
+ |
<LowerTheta>65</LowerTheta> |
| 499 |
+ |
<UpperTheta>75</UpperTheta> |
| 500 |
+ |
</ThetaBounds> |
| 501 |
+ |
</AngleBasisBlock> |
| 502 |
+ |
<AngleBasisBlock> |
| 503 |
+ |
<Theta>82.5</Theta> |
| 504 |
+ |
<nPhis>12</nPhis> |
| 505 |
+ |
<ThetaBounds> |
| 506 |
+ |
<LowerTheta>75</LowerTheta> |
| 507 |
+ |
<UpperTheta>90</UpperTheta> |
| 508 |
+ |
</ThetaBounds> |
| 509 |
+ |
</AngleBasisBlock> |
| 510 |
|
</AngleBasis> |
| 511 |
|
</DataDefinition> |
| 512 |
|
'; |
| 527 |
|
# Output front transmission (transposed order) |
| 528 |
|
for (my $od = 0; $od < $ndiv; $od++) { |
| 529 |
|
for (my $id = 0; $id < $ndiv; $id++) { |
| 530 |
< |
print $tfarr[$ndiv*$id + $od]; |
| 530 |
> |
print $tfarr[$ndiv*$id + $od], ",\n"; |
| 531 |
|
} |
| 532 |
|
print "\n"; |
| 533 |
|
} |
| 544 |
|
<WavelengthDataDirection>Reflection Front</WavelengthDataDirection> |
| 545 |
|
<ColumnAngleBasis>LBNL/Klems Full</ColumnAngleBasis> |
| 546 |
|
<RowAngleBasis>LBNL/Klems Full</RowAngleBasis> |
| 547 |
< |
<ScatteringDataType>BRDF</ScatteringDataType> |
| 547 |
> |
<ScatteringDataType>BTDF</ScatteringDataType> |
| 548 |
|
<ScatteringData> |
| 549 |
|
'; |
| 550 |
|
# Output front reflection (transposed order) |
| 551 |
|
for (my $od = 0; $od < $ndiv; $od++) { |
| 552 |
|
for (my $id = 0; $id < $ndiv; $id++) { |
| 553 |
< |
print $rfarr[$ndiv*$id + $od]; |
| 553 |
> |
print $rfarr[$ndiv*$id + $od], ",\n"; |
| 554 |
|
} |
| 555 |
|
print "\n"; |
| 556 |
|
} |
| 577 |
|
# Output back transmission (transposed order) |
| 578 |
|
for (my $od = 0; $od < $ndiv; $od++) { |
| 579 |
|
for (my $id = 0; $id < $ndiv; $id++) { |
| 580 |
< |
print $tbarr[$ndiv*$id + $od]; |
| 580 |
> |
print $tbarr[$ndiv*$id + $od], ",\n"; |
| 581 |
|
} |
| 582 |
|
print "\n"; |
| 583 |
|
} |
| 594 |
|
<WavelengthDataDirection>Reflection Back</WavelengthDataDirection> |
| 595 |
|
<ColumnAngleBasis>LBNL/Klems Full</ColumnAngleBasis> |
| 596 |
|
<RowAngleBasis>LBNL/Klems Full</RowAngleBasis> |
| 597 |
< |
<ScatteringDataType>BRDF</ScatteringDataType> |
| 597 |
> |
<ScatteringDataType>BTDF</ScatteringDataType> |
| 598 |
|
<ScatteringData> |
| 599 |
|
'; |
| 600 |
|
# Output back reflection (transposed order) |
| 601 |
|
for (my $od = 0; $od < $ndiv; $od++) { |
| 602 |
|
for (my $id = 0; $id < $ndiv; $id++) { |
| 603 |
< |
print $rbarr[$ndiv*$id + $od]; |
| 603 |
> |
print $rbarr[$ndiv*$id + $od], ",\n"; |
| 604 |
|
} |
| 605 |
|
print "\n"; |
| 606 |
|
} |