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root/radiance/src/util/genBSDF.pl
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Comparing src/util/genBSDF.pl (file contents):
Revision 2.56 by greg, Wed Apr 1 01:38:35 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 $td";
84   }
85   my @savedARGV = @ARGV;
# Line 136 | Line 153 | while ($#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);
139 – # Issue warning for unhandled reciprocity case
140 – print STDERR "Warning: recommend both +forward and +backward with -t3\n" if
141 –                ($tensortree==3 && !($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 {
149 <        system "xform -e @ARGV > $radscn";
150 <        die "Could not load Radiance input\n" if ( $? );
151 < }
152 < if ($#dim != 5) {
153 <        @dim = split ' ', `getbbox -h $radscn`;
154 < }
155 < print STDERR "Warning: Device extends into room\n" if ($dim[5] > 1e-5);
156 < $wrapper .= ' -f "t=' . ($dim[5] - $dim[4]) . ';w=' . ($dim[1] - $dim[0]) .
157 <                ';h=' . ($dim[3] - $dim[2]) . '"';
158 < # Generate octree
159 < system "oconv -w $radscn > $octree";
160 < die "Could not compile scene\n" if ( $? );
161 < # Add MGF description if requested
162 < if ( $geout ) {
163 <        open(MGFSCN, "> $mgfscn");
164 <        printf MGFSCN "xf -t %.6f %.6f 0\n", -($dim[0]+$dim[1])/2, -($dim[2]+$dim[3])/2;
165 <        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          }
171 –        open(MGFSCN, ">> $mgfscn");
172 –        print MGFSCN "xf\n";
173 –        close MGFSCN;
174 –        $wrapper .= " -g $mgfscn";
170   }
171 < # Create receiver & sender surfaces (rectangular)
172 < my $FEPS = 1e-5;
178 < my $nx = int(sqrt($nsamp*($dim[1]-$dim[0])/($dim[3]-$dim[2])) + 1);
179 < my $ny = int($nsamp/$nx + 1);
180 < $nsamp = $nx * $ny;
181 < my $ns = 2**$ttlog2;
182 < open(RADSCN, "> $receivers");
183 < print RADSCN '#@rfluxmtx ' . ($tensortree ? "h=-sc$ns\n" : "h=-kf\n");
184 < print RADSCN '#@rfluxmtx ' . "u=-Y o=$facedat\n\n";
185 < print RADSCN "void glow receiver_face\n0\n0\n4 1 1 1 0\n\n";
186 < print RADSCN "receiver_face source f_receiver\n0\n0\n4 0 0 1 180\n\n";
187 < print RADSCN '#@rfluxmtx ' . ($tensortree ? "h=+sc$ns\n" : "h=+kf\n");
188 < print RADSCN '#@rfluxmtx ' . "u=-Y o=$behinddat\n\n";
189 < print RADSCN "void glow receiver_behind\n0\n0\n4 1 1 1 0\n\n";
190 < print RADSCN "receiver_behind source b_receiver\n0\n0\n4 0 0 -1 180\n";
191 < close RADSCN;
192 < # Finish rfluxmtx command and prepare sender surfaces
193 < $rfluxmtx .= " -n $nproc -c $nsamp";
194 < if ( $tensortree != 3 ) {       # Isotropic tensor tree is exception
195 <        open (RADSCN, "> $fsender");
196 <        print RADSCN '#@rfluxmtx u=-Y ' . ($tensortree ? "h=-sc$ns\n\n" : "h=-kf\n\n");
197 <        print RADSCN "void polygon fwd_sender\n0\n0\n12\n";
198 <        printf RADSCN "\t%e\t%e\t%e\n", $dim[0], $dim[2], $dim[4]-$FEPS;
199 <        printf RADSCN "\t%e\t%e\t%e\n", $dim[0], $dim[3], $dim[4]-$FEPS;
200 <        printf RADSCN "\t%e\t%e\t%e\n", $dim[1], $dim[3], $dim[4]-$FEPS;
201 <        printf RADSCN "\t%e\t%e\t%e\n", $dim[1], $dim[2], $dim[4]-$FEPS;
202 <        close RADSCN;
203 <        open (RADSCN, "> $bsender");
204 <        print RADSCN '#@rfluxmtx u=-Y ' . ($tensortree ? "h=+sc$ns\n\n" : "h=+kf\n\n");
205 <        print RADSCN "void polygon bwd_sender\n0\n0\n12\n";
206 <        printf RADSCN "\t%e\t%e\t%e\n", $dim[0], $dim[2], $dim[5]+$FEPS;
207 <        printf RADSCN "\t%e\t%e\t%e\n", $dim[1], $dim[2], $dim[5]+$FEPS;
208 <        printf RADSCN "\t%e\t%e\t%e\n", $dim[1], $dim[3], $dim[5]+$FEPS;
209 <        printf RADSCN "\t%e\t%e\t%e\n", $dim[0], $dim[3], $dim[5]+$FEPS;
210 <        close RADSCN;
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;
195 + $rfluxmtx .= " -n $nproc -c $nsamp";
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 +        # 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 222 | Line 263 | if ( $tensortree ) {
263          do_matrix_bsdf();
264   }
265   # Output XML
225 – my $old_fh = select(STDOUT);
226 – $| = 1;
227 – select($old_fh);
228 – 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   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 246 | 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 ( $tensortree == 3 ) {
302                  # Isotropic BSDF
# Line 261 | Line 312 | sub do_ttree_dir {
312                                  qq{-e "zp=$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 $nx " .
318                                  qq{| rcalc -e "r1=rand(.8681*recno-.673892)" } .
# Line 273 | Line 324 | sub do_ttree_dir {
324                                  qq{-e "zp=$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 412 | 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 464 | Line 518 | sub matrix_comp {
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";
524                  $curspec = $spec;

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