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root/radiance/ray/src/util/genBSDF.pl
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Comparing ray/src/util/genBSDF.pl (file contents):
Revision 2.36 by greg, Thu Jun 14 18:35:03 2012 UTC vs.
Revision 2.46 by greg, Mon Apr 7 21:33:25 2014 UTC

# Line 24 | Line 24 | my $nproc = 1;
24   my $doforw = 0;
25   my $doback = 1;
26   my $pctcull = 90;
27 < my $gunit = "Meter";
27 > my $gunit = "meter";
28   my @dim;
29   # Get options
30   while ($#ARGV >= 0) {
# Line 108 | Line 108 | print
108   print "<!-- File produced by: genBSDF @savedARGV -->\n";
109   print
110   '<WindowElementType>System</WindowElementType>
111 + <FileType>BSDF</FileType>
112   <Optical>
113   <Layer>
114          <Material>
# Line 117 | Line 118 | print
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>Integral</DeviceType>\n";
121 > print "\t\t<DeviceType>Other</DeviceType>\n";
122 > print " </Material>\n";
123   # Output MGF description if requested
124   if ( $geout ) {
125 <        print "\t\t<Geometry format=\"MGF\" unit=\"$gunit\">\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   }
131 – 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);
# Line 178 | Line 181 | $disk2sq = '
181   norm_radians(p) : if(-p - PI/4, p + 2*PI, p);
182   in_disk_r = .999995*sqrt(Dx*Dx + Dy*Dy);
183   in_disk_phi = norm_radians(atan2(Dy, Dx));
184 < in_disk_rgn = floor((in_disk_phi + PI/4)/(PI/2)) + 1;
184 > in_disk_rgn = floor((.999995*in_disk_phi + PI/4)/(PI/2)) + 1;
185   out_square_a = select(in_disk_rgn,
186                          in_disk_r,
187                          (PI/2 - in_disk_phi)*in_disk_r/(PI/4),
# Line 197 | Line 200 | print "\t<DataDefinition>\n";
200   print "\t\t<IncidentDataStructure>TensorTree$tensortree</IncidentDataStructure>\n";
201   print "\t</DataDefinition>\n";
202  
203 < # Start rtcontrib processes for compute each side
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 rtcontrib process in background to generate tensor tree samples
209 > # Run rcontrib process to generate tensor tree samples
210   sub do_tree_rtcontrib {
211          my $forw = shift;
212          my $matargs = "-m $bmodnm";
213 <        if ( !$forw || !$doback ) { $matargs .= " -m $fmodnm"; }
213 >        if ( !$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)' " .
# Line 245 | Line 248 | sub do_tree_rtcontrib {
248                          "| $cmd";
249          }
250   # print STDERR "Starting: $cmd\n";
251 <        system "$cmd" || die "Failure running rtcontrib";
251 >        system "$cmd" || die "Failure running rcontrib";
252          ttree_out($forw);
253   }       # end of do_tree_rtcontrib()
254  
# Line 254 | Line 257 | sub ttree_out {
257          my $forw = shift;
258          my $side = ("Back","Front")[$forw];
259          my $cmd;
260 < # Only output one transmitted distribution, preferring backwards
261 < if ( !$forw || !$doback ) {
260 > # Only output one transmitted anisotropic distribution, preferring backwards
261 > if ( !$forw || !$doback || $tensortree==3 ) {
262   print
263   '       <WavelengthData>
264                  <LayerNumber>System</LayerNumber>
# Line 263 | Line 266 | print
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   ';
# Line 272 | Line 277 | $cmd = "rcalc -if3 -e 'Omega:PI/($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 -a -h -ff -t $pctcull -r $tensortree -g $ttlog2";
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";
# Line 301 | Line 307 | print
307   print "\t\t\t<WavelengthDataDirection>Reflection $side</WavelengthDataDirection>\n";
308   print
309   '                       <AngleBasis>LBNL/Shirley-Chiu</AngleBasis>
310 <                        <ScatteringDataType>BRDF</ScatteringDataType>
310 >                        <ScatteringDataType>BTDF</ScatteringDataType>
311                          <ScatteringData>
312   ';
313   $cmd = "rcalc -if3 -e 'Omega:PI/($ns*$ns)' " .
# Line 379 | Line 385 | kbin2(pol,azi) = select(kfindrow(1, pol),
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;
# Line 402 | Line 408 | $cmd = "cnt $ndiv $ny $nx | rcalc -of -e '$tcal' " .
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' " .
# Line 536 | Line 544 | print
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)
# Line 586 | Line 594 | print
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)

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