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root/radiance/ray/src/util/genBSDF.pl
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Comparing ray/src/util/genBSDF.pl (file contents):
Revision 2.50 by greg, Wed Mar 4 17:42:54 2015 UTC vs.
Revision 2.68 by greg, Fri Sep 16 20:01:29 2016 UTC

# Line 9 | Line 9 | use strict;
9   my $windoz = ($^O eq "MSWin32" or $^O eq "MSWin64");
10   use File::Temp qw/ :mktemp  /;
11   sub userror {
12 <        print STDERR "Usage: genBSDF [-n Nproc][-c Nsamp][-W][-t{3|4} Nlog2][-r \"ropts\"][-f \"x=string;y=string\"][-dim xmin xmax ymin ymax zmin zmax][{+|-}C][{+|-}f][{+|-}b][{+|-}mgf][{+|-}geom units] [input ..]\n";
12 >        print STDERR "Usage: genBSDF [-n Nproc][-c Nsamp][-W][-t{3|4} Nlog2][-r \"ropts\"][-s \"x=string;y=string\"][-dim xmin xmax ymin ymax zmin zmax][{+|-}C][{+|-}f][{+|-}b][{+|-}mgf][{+|-}geom units] [input ..]\n";
13          exit 1;
14   }
15   my ($td,$radscn,$mgfscn,$octree,$fsender,$bsender,$receivers,$facedat,$behinddat,$rmtmp);
16 < my ($tf,$rf,$tb,$rb,$tfx,$rfx,$tbx,$rbx,$tfz,$rfz,$tbz,$rbz);
17 < if ($windoz) {
16 > my ($tf,$rf,$tb,$rb,$tfx,$rfx,$tbx,$rbx,$tfz,$rfz,$tbz,$rbz,$cph);
17 > my ($curphase, $recovery);
18 > if ($#ARGV == 1 && "$ARGV[0]" =~ /^-rec/) {
19 >        $td = $ARGV[1];
20 >        open(MYAVH, "< $td/savedARGV.txt") or die "$td: invalid path\n";
21 >        @ARGV = <MYAVH>;
22 >        close MYAVH;
23 >        chomp @ARGV;
24 >        if (open(MYPH, "< $td/phase.txt")) {
25 >                while (<MYPH>) {
26 >                        chomp($recovery = $_);
27 >                }
28 >                close MYPH;
29 >        }
30 > } elsif ($windoz) {
31          my $tmploc = `echo \%TMP\%`;
32 <        chomp($tmploc);
32 >        chomp $tmploc;
33          $td = mkdtemp("$tmploc\\genBSDF.XXXXXX");
34 + } else {
35 +        $td = mkdtemp("/tmp/genBSDF.XXXXXX");
36 +        chomp $td;
37 + }
38 + if ($windoz) {
39          $radscn = "$td\\device.rad";
40          $mgfscn = "$td\\device.mgf";
41          $octree = "$td\\device.oct";
# Line 38 | Line 56 | if ($windoz) {
56          $rfz = "$td\\rfz.dat";
57          $tbz = "$td\\tbz.dat";
58          $rbz = "$td\\rbz.dat";
59 <        chomp $td;
60 <        $rmtmp = "rmdir /S /Q $td";
59 >        $cph = "$td\\phase.txt";
60 >        $rmtmp = "rd /S /Q $td";
61   } else {
44        $td = mkdtemp("/tmp/genBSDF.XXXXXX");
45        chomp $td;
62          $radscn = "$td/device.rad";
63          $mgfscn = "$td/device.mgf";
64          $octree = "$td/device.oct";
# Line 63 | Line 79 | if ($windoz) {
79          $rfz = "$td/rfz.dat";
80          $tbz = "$td/tbz.dat";
81          $rbz = "$td/rbz.dat";
82 +        $cph = "$td/phase.txt";
83          $rmtmp = "rm -rf $td";
84   }
85   my @savedARGV = @ARGV;
86 < my $rfluxmtx = "rfluxmtx -v -ab 5 -ad 700 -lw 3e-6";
86 > my $rfluxmtx = "rfluxmtx -ab 5 -ad 700 -lw 3e-6";
87   my $wrapper = "wrapBSDF";
88   my $tensortree = 0;
89   my $ttlog2 = 4;
# Line 104 | Line 121 | while ($#ARGV >= 0) {
121          } elsif ("$ARGV[0]" eq "-t") {
122                  # Use value < 0 for rttree_reduce bypass
123                  $pctcull = $ARGV[1];
124 +                if ($pctcull >= 100) {
125 +                        die "Illegal -t culling percentage, must be < 100\n";
126 +                }
127                  shift @ARGV;
128          } elsif ("$ARGV[0]" =~ /^-t[34]$/) {
129                  $tensortree = substr($ARGV[0], 2, 1);
130                  $ttlog2 = $ARGV[1];
131                  shift @ARGV;
132 <        } elsif ("$ARGV[0]" eq "-f") {
132 >        } elsif ("$ARGV[0]" eq "-s") {
133                  $wrapper .= " -f \"$ARGV[1]\"";
134                  shift @ARGV;
135          } elsif ("$ARGV[0]" eq "-W") {
# Line 133 | Line 153 | while ($#ARGV >= 0) {
153   }
154   # Check that we're actually being asked to do something
155   die "Must have at least one of +forward or +backward\n" if (!$doforw && !$doback);
136 # Issue warning for unhandled reciprocity case
137 print STDERR "Warning: recommend both +forward and +backward with -t3\n" if
138                ($tensortree==3 && !($doforw && $doback));
156   $wrapper .= $tensortree ? " -a t$tensortree" : " -a kf -c";
157   $wrapper .= " -u $gunit";
158 < # Get scene description and dimensions
159 < if ( $mgfin ) {
160 <        system "mgf2rad @ARGV > $radscn";
161 <        die "Could not load MGF input\n" if ( $? );
162 < } else {
146 <        system "xform -e @ARGV > $radscn";
147 <        die "Could not load Radiance input\n" if ( $? );
148 < }
149 < if ($#dim != 5) {
150 <        @dim = split ' ', `getbbox -h $radscn`;
151 < }
152 < print STDERR "Warning: Device extends into room\n" if ($dim[5] > 1e-5);
153 < $wrapper .= ' -f "t=' . ($dim[5] - $dim[4]) . ';w=' . ($dim[1] - $dim[0]) .
154 <                ';h=' . ($dim[3] - $dim[2]) . '"';
155 < # Generate octree
156 < system "oconv -w $radscn > $octree";
157 < die "Could not compile scene\n" if ( $? );
158 < # Add MGF description if requested
159 < if ( $geout ) {
160 <        open(MGFSCN, "> $mgfscn");
161 <        printf MGFSCN "xf -t %.6f %.6f 0\n", -($dim[0]+$dim[1])/2, -($dim[2]+$dim[3])/2;
162 <        close MGFSCN;
158 > if ( !defined $recovery ) {
159 >        # Issue warning for unhandled reciprocity case
160 >        print STDERR "Warning: recommend both +forward and +backward with -t3\n" if
161 >                        ($tensortree==3 && !($doforw && $doback));
162 >        # Get scene description
163          if ( $mgfin ) {
164 <                system qq{mgfilt "#,o,xf,c,cxy,cspec,cmix,m,sides,rd,td,rs,ts,ir,v,p,n,f,fh,sph,cyl,cone,prism,ring,torus" @ARGV >> $mgfscn};
164 >                system "mgf2rad @ARGV > $radscn";
165 >                die "Could not load MGF input\n" if ( $? );
166          } else {
167 <                system "rad2mgf $radscn >> $mgfscn";
167 >                system "xform -e @ARGV > $radscn";
168 >                die "Could not load Radiance input\n" if ( $? );
169          }
168        open(MGFSCN, ">> $mgfscn");
169        print MGFSCN "xf\n";
170        close MGFSCN;
171        $wrapper .= " -g $mgfscn";
170   }
171 < # Create receiver & sender surfaces (rectangular)
171 > if ( $#dim != 5 ) {
172 >        @dim = split ' ', `getbbox -h $radscn`;
173 > }
174 > die "Device entirely inside room!\n" if ( $dim[4] >= 0 );
175 > if ( $dim[5] > 1e-5 ) {
176 >        print STDERR "Warning: Device extends into room\n";
177 > } elsif ( $dim[5]*$dim[5] > .01*($dim[1]-$dim[0])*($dim[3]-$dim[2]) ) {
178 >        print STDERR "Warning: Device far behind Z==0 plane\n";
179 > }
180 > # Assume Zmax==0 to derive thickness so pkgBSDF will work
181 > $wrapper .= ' -f "t=' . (-$dim[4]) . ';w=' . ($dim[1] - $dim[0]) .
182 >                ';h=' . ($dim[3] - $dim[2]) . '"';
183 > $wrapper .= " -g $mgfscn" if ( $geout );
184 > # Calculate CIE (u',v') from Radiance RGB:
185 > my $CIEuv =     'Xi=.5141*Ri+.3239*Gi+.1620*Bi;' .
186 >                'Yi=.2651*Ri+.6701*Gi+.0648*Bi;' .
187 >                'Zi=.0241*Ri+.1229*Gi+.8530*Bi;' .
188 >                'den=Xi+15*Yi+3*Zi;' .
189 >                'uprime=4*Xi/den;vprime=9*Yi/den;' ;
190 > my $FEPS = 1e-5;
191 > my $ns = 2**$ttlog2;
192   my $nx = int(sqrt($nsamp*($dim[1]-$dim[0])/($dim[3]-$dim[2])) + 1);
193   my $ny = int($nsamp/$nx + 1);
194   $nsamp = $nx * $ny;
177 my $ns = 2**$ttlog2;
178 open(RADSCN, "> $receivers");
179 print RADSCN '#@rfluxmtx ' . ($tensortree ? "h=sc$ns\n" : "h=kf\n");
180 print RADSCN '#@rfluxmtx ' . "u=Y o=$facedat\n\n";
181 print RADSCN "void glow receiver_face\n0\n0\n4 1 1 1 0\n\n";
182 print RADSCN "receiver_face source f_receiver\n0\n0\n4 0 0 1 180\n\n";
183 print RADSCN '#@rfluxmtx ' . "u=Y o=$behinddat\n\n";
184 print RADSCN "void glow receiver_behind\n0\n0\n4 1 1 1 0\n\n";
185 print RADSCN "receiver_behind source b_receiver\n0\n0\n4 0 0 -1 180\n";
186 close RADSCN;
187 # Finish rfluxmtx command and prepare sender surfaces
195   $rfluxmtx .= " -n $nproc -c $nsamp";
196 < if ( $tensortree != 3 ) {       # Isotropic tensor tree is exception
197 <        open (RADSCN, "> $fsender");
198 <        print RADSCN '#@rfluxmtx u=Y ' . ($tensortree ? "h=sc$ns\n\n" : "h=kf\n\n");
199 <        print RADSCN "void polygon fwd_sender\n0\n0\n12\n";
200 <        printf RADSCN "\t%f\t%f\t%f\n", $dim[0], $dim[2], $dim[4];
201 <        printf RADSCN "\t%f\t%f\t%f\n", $dim[0], $dim[3], $dim[4];
202 <        printf RADSCN "\t%f\t%f\t%f\n", $dim[1], $dim[3], $dim[4];
203 <        printf RADSCN "\t%f\t%f\t%f\n", $dim[1], $dim[2], $dim[4];
196 > if ( !defined $recovery ) {
197 >        open(MYAVH, "> $td/savedARGV.txt");
198 >        foreach (@savedARGV) {
199 >                print MYAVH "$_\n";
200 >        }
201 >        close MYAVH;
202 >        # Generate octree
203 >        system "oconv -w $radscn > $octree";
204 >        die "Could not compile scene\n" if ( $? );
205 >        # Add MGF description if requested
206 >        if ( $geout ) {
207 >                open(MGFSCN, "> $mgfscn");
208 >                printf MGFSCN "xf -t %.6f %.6f 0\n", -($dim[0]+$dim[1])/2, -($dim[2]+$dim[3])/2;
209 >                close MGFSCN;
210 >                if ( $mgfin ) {
211 >                        system qq{mgfilt "#,o,xf,c,cxy,cspec,cmix,m,sides,rd,td,rs,ts,ir,v,p,n,f,fh,sph,cyl,cone,prism,ring,torus" @ARGV >> $mgfscn};
212 >                } else {
213 >                        system "rad2mgf $radscn >> $mgfscn";
214 >                }
215 >                open(MGFSCN, ">> $mgfscn");
216 >                print MGFSCN "xf\n";
217 >                close MGFSCN;
218 >        }
219 >        # Create receiver & sender surfaces (rectangular)
220 >        open(RADSCN, "> $receivers");
221 >        print RADSCN '#@rfluxmtx ' . ($tensortree ? "h=-sc$ns\n" : "h=-kf\n");
222 >        print RADSCN '#@rfluxmtx ' . "u=-Y o=$facedat\n\n";
223 >        print RADSCN "void glow receiver_face\n0\n0\n4 1 1 1 0\n\n";
224 >        print RADSCN "receiver_face source f_receiver\n0\n0\n4 0 0 1 180\n\n";
225 >        print RADSCN '#@rfluxmtx ' . ($tensortree ? "h=+sc$ns\n" : "h=+kf\n");
226 >        print RADSCN '#@rfluxmtx ' . "u=-Y o=$behinddat\n\n";
227 >        print RADSCN "void glow receiver_behind\n0\n0\n4 1 1 1 0\n\n";
228 >        print RADSCN "receiver_behind source b_receiver\n0\n0\n4 0 0 -1 180\n";
229          close RADSCN;
230 <        open (RADSCN, "> $bsender");
231 <        print RADSCN '#@rfluxmtx u=Y ' . ($tensortree ? "h=sc$ns\n\n" : "h=kf\n\n");
232 <        print RADSCN "void polygon fwd_sender\n0\n0\n12\n";
233 <        printf RADSCN "\t%f\t%f\t%f\n", $dim[0], $dim[2], $dim[5];
234 <        printf RADSCN "\t%f\t%f\t%f\n", $dim[1], $dim[2], $dim[5];
235 <        printf RADSCN "\t%f\t%f\t%f\n", $dim[1], $dim[3], $dim[5];
236 <        printf RADSCN "\t%f\t%f\t%f\n", $dim[0], $dim[3], $dim[5];
237 <        close RADSCN;
230 >        # Prepare sender surfaces
231 >        if ( $tensortree != 3 ) {       # Isotropic tensor tree is exception
232 >                open (RADSCN, "> $fsender");
233 >                print RADSCN '#@rfluxmtx u=-Y ' . ($tensortree ? "h=-sc$ns\n\n" : "h=-kf\n\n");
234 >                print RADSCN "void polygon fwd_sender\n0\n0\n12\n";
235 >                printf RADSCN "\t%e\t%e\t%e\n", $dim[0], $dim[2], $dim[4]-$FEPS;
236 >                printf RADSCN "\t%e\t%e\t%e\n", $dim[0], $dim[3], $dim[4]-$FEPS;
237 >                printf RADSCN "\t%e\t%e\t%e\n", $dim[1], $dim[3], $dim[4]-$FEPS;
238 >                printf RADSCN "\t%e\t%e\t%e\n", $dim[1], $dim[2], $dim[4]-$FEPS;
239 >                close RADSCN;
240 >                open (RADSCN, "> $bsender");
241 >                print RADSCN '#@rfluxmtx u=-Y ' . ($tensortree ? "h=+sc$ns\n\n" : "h=+kf\n\n");
242 >                print RADSCN "void polygon bwd_sender\n0\n0\n12\n";
243 >                printf RADSCN "\t%e\t%e\t%e\n", $dim[0], $dim[2], $dim[5]+$FEPS;
244 >                printf RADSCN "\t%e\t%e\t%e\n", $dim[1], $dim[2], $dim[5]+$FEPS;
245 >                printf RADSCN "\t%e\t%e\t%e\n", $dim[1], $dim[3], $dim[5]+$FEPS;
246 >                printf RADSCN "\t%e\t%e\t%e\n", $dim[0], $dim[3], $dim[5]+$FEPS;
247 >                close RADSCN;
248 >        }
249 >        print STDERR "Recover using: $0 -recover $td\n";
250   }
251 + # Open unbuffered progress file
252 + open(MYPH, ">> $td/phase.txt");
253 + {
254 +        my $ofh = select MYPH;
255 +        $| = 1;
256 +        select $ofh;
257 + }
258 + $curphase = 0;
259   # Create data segments (all the work happens here)
260   if ( $tensortree ) {
261          do_tree_bsdf();
# Line 211 | Line 263 | if ( $tensortree ) {
263          do_matrix_bsdf();
264   }
265   # Output XML
214 my $old_fh = select(STDOUT);
215 $| = 1;
216 select($old_fh);
217 print "<!-- Created by: genBSDF @savedARGV -->\n";
266   # print STDERR "Running: $wrapper\n";
267 < system $wrapper;
267 > system "$wrapper -C \"Created by: genBSDF @savedARGV\"";
268   die "Could not wrap BSDF data\n" if ( $? );
269   # Clean up temporary files and exit
270 < system $rmtmp;
270 > exec $rmtmp;
271  
272 < #-------------- End of main program segment --------------#
272 > #============== End of main program segment ==============#
273  
274 + # Function to determine if next phase should be skipped or recovered
275 + sub do_phase {
276 +        $curphase++;
277 +        if (defined $recovery) {
278 +                if ($recovery > $curphase) { return 0; }
279 +                if ($recovery == $curphase) { return -1; }
280 +        }
281 +        print MYPH "$curphase\n";
282 +        return 1;
283 + }
284 +
285   #++++++++++++++ Tensor tree BSDF generation ++++++++++++++#
286   sub do_tree_bsdf {
287  
# Line 235 | Line 294 | sub do_tree_bsdf {
294   # Call rfluxmtx and process tensor tree BSDF for the given direction
295   sub do_ttree_dir {
296          my $forw = shift;
297 +        my $r = do_phase();
298 +        if (!$r) { return; }
299 +        $r = ($r < 0) ? " -r" : "";
300          my $cmd;
301          if ( $tensortree == 3 ) {
302                  # Isotropic BSDF
# Line 250 | Line 312 | sub do_ttree_dir {
312                                  qq{-e "zp=$dim[5-$forw]" -e "myDz=Dz*($forw*2-1)" } .
313                                  qq{-e "\$1=xp-Dx;\$2=yp-Dy;\$3=zp-myDz" } .
314                                  qq{-e "\$4=Dx;\$5=Dy;\$6=myDz" } .
315 <                                "| $rfluxmtx -fa -y $ns2 - $receivers -i $octree";
315 >                                "| $rfluxmtx$r -fa -y $ns2 - $receivers -i $octree";
316                  } else {
317                          $cmd = "cnt $ns2 $ny $nx " .
318                                  qq{| rcalc -e "r1=rand(.8681*recno-.673892)" } .
# Line 262 | Line 324 | sub do_ttree_dir {
324                                  qq{-e "zp=$dim[5-$forw]" -e "myDz=Dz*($forw*2-1)" } .
325                                  qq{-e '\$1=xp-Dx;\$2=yp-Dy;\$3=zp-myDz' } .
326                                  qq{-e '\$4=Dx;\$5=Dy;\$6=myDz' -of } .
327 <                                "| $rfluxmtx -h -ff -y $ns2 - $receivers -i $octree";
327 >                                "| $rfluxmtx$r -h -ff -y $ns2 - $receivers -i $octree";
328                  }
329          } else {
330                  # Anisotropic BSDF
331                  my $sender = ($bsender,$fsender)[$forw];
332                  if ($windoz) {
333 <                        $cmd = "$rfluxmtx -fa $sender $receivers -i $octree";
333 >                        $cmd = "$rfluxmtx$r -fa $sender $receivers -i $octree";
334                  } else {
335 <                        $cmd = "$rfluxmtx -h -ff $sender $receivers -i $octree";
335 >                        $cmd = "$rfluxmtx$r -h -ff $sender $receivers -i $octree";
336                  }
337          }
338          # print STDERR "Starting: $cmd\n";
# Line 295 | Line 357 | sub ttree_out {
357                  my $ttyp = ("tb","tf")[$forw];
358                  ttree_comp($ttyp, "Visible", $transdat, ($tb,$tf)[$forw]);
359                  if ( $docolor ) {
360 <                        ttree_comp($ttyp, "CIE-X", $transdat, ($tbx,$tfx)[$forw]);
361 <                        ttree_comp($ttyp, "CIE-Z", $transdat, ($tbz,$tfz)[$forw]);
360 >                        ttree_comp($ttyp, "CIE-u", $transdat, ($tbx,$tfx)[$forw]);
361 >                        ttree_comp($ttyp, "CIE-v", $transdat, ($tbz,$tfz)[$forw]);
362                  }
363          }
364          # Output reflection
365          my $rtyp = ("rb","rf")[$forw];
366          ttree_comp($rtyp, "Visible", $refldat, ($rb,$rf)[$forw]);
367          if ( $docolor ) {
368 <                ttree_comp($rtyp, "CIE-X", $refldat, ($rbx,$rfx)[$forw]);
369 <                ttree_comp($rtyp, "CIE-Z", $refldat, ($rbz,$rfz)[$forw]);
368 >                ttree_comp($rtyp, "CIE-u", $refldat, ($rbx,$rfx)[$forw]);
369 >                ttree_comp($rtyp, "CIE-v", $refldat, ($rbz,$rfz)[$forw]);
370          }
371   }       # end of ttree_out()
372  
# Line 318 | Line 380 | sub ttree_comp {
380          if ($windoz) {
381                  if ("$spec" eq "Visible") {
382                          $cmd = qq{rcalc -e "Omega:PI/($ns*$ns)" } .
383 <                                q{-e "$1=(0.265*$1+0.670*$2+0.065*$3)/Omega"};
384 <                } elsif ("$spec" eq "CIE-X") {
385 <                        $cmd = qq{rcalc -e "Omega:PI/($ns*$ns)" } .
386 <                                q{-e "$1=(0.514*$1+0.324*$2+0.162*$3)/Omega"};
387 <                } elsif ("$spec" eq "CIE-Z") {
388 <                        $cmd = qq{rcalc -e "Omega:PI/($ns*$ns)" } .
389 <                                q{-e "$1=(0.024*$1+0.123*$2+0.853*$3)/Omega"};
383 >                                q{-e "Ri=$1;Gi=$2;Bi=$3" } .
384 >                                qq{-e "$CIEuv" } .
385 >                                q{-e "$1=Yi/Omega"};
386 >                } elsif ("$spec" eq "CIE-u") {
387 >                        $cmd = q{rcalc -e "Ri=$1;Gi=$2;Bi=$3" } .
388 >                                qq{-e "$CIEuv" } .
389 >                                q{-e "$1=uprime"};
390 >                } elsif ("$spec" eq "CIE-v") {
391 >                        $cmd = q{rcalc -e "Ri=$1;Gi=$2;Bi=$3" } .
392 >                                qq{-e "$CIEuv" } .
393 >                                q{-e "$1=vprime"};
394                  }
395          } else {
396                  if ("$spec" eq "Visible") {
397                          $cmd = "rcalc -if3 -e 'Omega:PI/($ns*$ns)' " .
398 <                                q{-e '$1=(0.265*$1+0.670*$2+0.065*$3)/Omega'};
399 <                } elsif ("$spec" eq "CIE-X") {
400 <                        $cmd = "rcalc -if3 -e 'Omega:PI/($ns*$ns)' " .
401 <                                q{-e '$1=(0.514*$1+0.324*$2+0.162*$3)/Omega'};
402 <                } elsif ("$spec" eq "CIE-Z") {
403 <                        $cmd = "rcalc -if3 -e 'Omega:PI/($ns*$ns)' " .
404 <                                q{-e '$1=(0.024*$1+0.123*$2+0.853*$3)/Omega'};
398 >                                q{-e 'Ri=$1;Gi=$2;Bi=$3' } .
399 >                                "-e '$CIEuv' " .
400 >                                q{-e '$1=Yi/Omega'};
401 >                } elsif ("$spec" eq "CIE-u") {
402 >                        $cmd = q{rcalc -if3 -e 'Ri=$1;Gi=$2;Bi=$3' } .
403 >                                "-e '$CIEuv' " .
404 >                                q{-e '$1=uprime'};
405 >                } elsif ("$spec" eq "CIE-v") {
406 >                        $cmd = q{rcalc -if3 -e 'Ri=$1;Gi=$2;Bi=$3' } .
407 >                                "-e '$CIEuv' " .
408 >                                q{-e '$1=vprime'};
409                  }
410          }
411          if ($pctcull >= 0) {
412                  my $avg = ( "$typ" =~ /^r[fb]/ ) ? " -a" : "";
413 +                my $pcull = ("$spec" eq "Visible") ? $pctcull :
414 +                                                     (100 - (100-$pctcull)*.25) ;
415                  if ($windoz) {
416                          $cmd = "rcollate -ho -oc 1 $src | " .
417                                          $cmd .
418 <                                        " | rttree_reduce$avg -h -fa -t $pctcull -r $tensortree -g $ttlog2";
418 >                                        " | rttree_reduce$avg -h -fa -t $pcull -r $tensortree -g $ttlog2";
419                  } else {
420                          $cmd .= " -of $src " .
421 <                                        "| rttree_reduce$avg -h -ff -t $pctcull -r $tensortree -g $ttlog2";
421 >                                        "| rttree_reduce$avg -h -ff -t $pcull -r $tensortree -g $ttlog2";
422                  }
423                  # print STDERR "Running: $cmd\n";
424                  system "$cmd > $dest";
# Line 371 | Line 443 | sub ttree_comp {
443                  close DATOUT;
444          }
445          if ( "$spec" ne "$curspec" ) {
446 <                $wrapper .= " -s $spec"
446 >                $wrapper .= " -s $spec";
447                  $curspec = $spec;
448          }
449          $wrapper .= " -$typ $dest";
# Line 391 | Line 463 | sub do_matrix_bsdf {
463   # Call rfluxmtx and process tensor tree BSDF for the given direction
464   sub do_matrix_dir {
465          my $forw = shift;
466 +        my $r = do_phase();
467 +        if (!$r) { return; }
468 +        $r = ($r < 0) ? " -r" : "";
469          my $cmd;
470          my $sender = ($bsender,$fsender)[$forw];
471 <        $cmd = "$rfluxmtx -fd $sender $receivers -i $octree";
471 >        $cmd = "$rfluxmtx$r -fd $sender $receivers -i $octree";
472          # print STDERR "Starting: $cmd\n";
473          system $cmd;
474          die "Failure running rfluxmtx" if ( $? );
# Line 434 | Line 509 | sub matrix_comp {
509          my $dest = shift;
510          my $cmd = "rmtxop -fa -t";
511          if ("$spec" eq "Visible") {
512 <                $cmd .= " -c 0.265 0.670 0.065";
512 >                $cmd .= " -c 0.2651 0.6701 0.0648";
513          } elsif ("$spec" eq "CIE-X") {
514 <                $cmd .= " -c 0.514 0.324 0.162";
514 >                $cmd .= " -c 0.5141 0.3239 0.1620";
515          } elsif ("$spec" eq "CIE-Z") {
516 <                $cmd .= " -c 0.024 0.123 0.853";
516 >                $cmd .= " -c 0.0241 0.1229 0.8530";
517          }
518 <        $cmd .= " $src | rcollate -ho";
518 >        $cmd .= " $src | rcollate -ho -oc 145";
519          # print STDERR "Running: $cmd\n";
520          system "$cmd > $dest";
521 <        die "Failure running rttree_reduce" if ( $? );
521 >        die "Failure running rmtxop" if ( $? );
522          if ( "$spec" ne "$curspec" ) {
523 <                $wrapper .= " -s $spec"
523 >                $wrapper .= " -s $spec";
524                  $curspec = $spec;
525          }
526          $wrapper .= " -$typ $dest";

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