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root/radiance/ray/src/util/genBSDF.pl
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Comparing ray/src/util/genBSDF.pl (file contents):
Revision 2.62 by greg, Mon Feb 8 00:51:32 2016 UTC vs.
Revision 2.71 by greg, Mon Sep 19 16:28:21 2016 UTC

# Line 13 | Line 13 | sub userror {
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 >        $recovery = 0;
25 >        if (open(MYPH, "< $td/phase.txt")) {
26 >                while (<MYPH>) {
27 >                        chomp($recovery = $_);
28 >                }
29 >                close MYPH;
30 >        }
31 > } elsif ($windoz) {
32          my $tmploc = `echo \%TMP\%`;
33 <        chomp($tmploc);
33 >        chomp $tmploc;
34          $td = mkdtemp("$tmploc\\genBSDF.XXXXXX");
35 + } else {
36 +        $td = mkdtemp("/tmp/genBSDF.XXXXXX");
37 +        chomp $td;
38 + }
39 + if ($windoz) {
40          $radscn = "$td\\device.rad";
41          $mgfscn = "$td\\device.mgf";
42          $octree = "$td\\device.oct";
# Line 38 | Line 57 | if ($windoz) {
57          $rfz = "$td\\rfz.dat";
58          $tbz = "$td\\tbz.dat";
59          $rbz = "$td\\rbz.dat";
60 <        chomp $td;
61 <        $rmtmp = "rmdir /S /Q $td";
60 >        $cph = "$td\\phase.txt";
61 >        $rmtmp = "rd /S /Q $td";
62   } else {
44 –        $td = mkdtemp("/tmp/genBSDF.XXXXXX");
45 –        chomp $td;
63          $radscn = "$td/device.rad";
64          $mgfscn = "$td/device.mgf";
65          $octree = "$td/device.oct";
# Line 63 | Line 80 | if ($windoz) {
80          $rfz = "$td/rfz.dat";
81          $tbz = "$td/tbz.dat";
82          $rbz = "$td/rbz.dat";
83 +        $cph = "$td/phase.txt";
84          $rmtmp = "rm -rf $td";
85   }
86   my @savedARGV = @ARGV;
# Line 136 | Line 154 | while ($#ARGV >= 0) {
154   }
155   # Check that we're actually being asked to do something
156   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));
157   $wrapper .= $tensortree ? " -a t$tensortree" : " -a kf -c";
158   $wrapper .= " -u $gunit";
159 < # Get scene description and dimensions
160 < if ( $mgfin ) {
161 <        system "mgf2rad @ARGV > $radscn";
162 <        die "Could not load MGF input\n" if ( $? );
163 < } 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;
159 > if ( !defined $recovery ) {
160 >        # Issue warning for unhandled reciprocity case
161 >        print STDERR "Warning: recommend both +forward and +backward with -t3\n" if
162 >                        ($tensortree==3 && !($doforw && $doback));
163 >        # Get scene description
164          if ( $mgfin ) {
165 <                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};
165 >                system "mgf2rad @ARGV > $radscn";
166 >                die "Could not load MGF input\n" if ( $? );
167          } else {
168 <                system "rad2mgf $radscn >> $mgfscn";
168 >                system "xform -e @ARGV > $radscn";
169 >                die "Could not load Radiance input\n" if ( $? );
170          }
171 –        open(MGFSCN, ">> $mgfscn");
172 –        print MGFSCN "xf\n";
173 –        close MGFSCN;
174 –        $wrapper .= " -g $mgfscn";
171   }
172 < # Create receiver & sender surfaces (rectangular)
173 < 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;
172 > if ( $#dim != 5 ) {
173 >        @dim = split ' ', `getbbox -h $radscn`;
174   }
175 + die "Device entirely inside room!\n" if ( $dim[4] >= 0 );
176 + if ( $dim[5] > 1e-5 ) {
177 +        print STDERR "Warning: Device extends into room\n";
178 + } elsif ( $dim[5]*$dim[5] > .01*($dim[1]-$dim[0])*($dim[3]-$dim[2]) ) {
179 +        print STDERR "Warning: Device far behind Z==0 plane\n";
180 + }
181 + # Assume Zmax==0 to derive thickness so pkgBSDF will work
182 + $wrapper .= ' -f "t=' . (-$dim[4]) . ';w=' . ($dim[1] - $dim[0]) .
183 +                ';h=' . ($dim[3] - $dim[2]) . '"';
184 + $wrapper .= " -g $mgfscn" if ( $geout );
185   # Calculate CIE (u',v') from Radiance RGB:
186   my $CIEuv =     'Xi=.5141*Ri+.3239*Gi+.1620*Bi;' .
187                  'Yi=.2651*Ri+.6701*Gi+.0648*Bi;' .
188                  'Zi=.0241*Ri+.1229*Gi+.8530*Bi;' .
189                  'den=Xi+15*Yi+3*Zi;' .
190                  'uprime=4*Xi/den;vprime=9*Yi/den;' ;
191 + my $FEPS = 1e-5;
192 + my $ns = 2**$ttlog2;
193 + my $nx = int(sqrt($nsamp*($dim[1]-$dim[0])/($dim[3]-$dim[2])) + 1);
194 + my $ny = int($nsamp/$nx + 1);
195 + $nsamp = $nx * $ny;
196 + $rfluxmtx .= " -n $nproc -c $nsamp";
197 + if ( !defined $recovery ) {
198 +        open(MYAVH, "> $td/savedARGV.txt");
199 +        foreach (@savedARGV) {
200 +                print MYAVH "$_\n";
201 +        }
202 +        close MYAVH;
203 +        # Generate octree
204 +        system "oconv -w $radscn > $octree";
205 +        die "Could not compile scene\n" if ( $? );
206 +        # Add MGF description if requested
207 +        if ( $geout ) {
208 +                open(MGFSCN, "> $mgfscn");
209 +                printf MGFSCN "xf -t %.6f %.6f 0\n", -($dim[0]+$dim[1])/2, -($dim[2]+$dim[3])/2;
210 +                close MGFSCN;
211 +                if ( $mgfin ) {
212 +                        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};
213 +                } else {
214 +                        system "rad2mgf $radscn >> $mgfscn";
215 +                }
216 +                open(MGFSCN, ">> $mgfscn");
217 +                print MGFSCN "xf\n";
218 +                close MGFSCN;
219 +        }
220 +        # Create receiver & sender surfaces (rectangular)
221 +        open(RADSCN, "> $receivers");
222 +        print RADSCN '#@rfluxmtx ' . ($tensortree ? "h=-sc$ns\n" : "h=-kf\n");
223 +        print RADSCN '#@rfluxmtx ' . "u=-Y o=$facedat\n\n";
224 +        print RADSCN "void glow receiver_face\n0\n0\n4 1 1 1 0\n\n";
225 +        print RADSCN "receiver_face source f_receiver\n0\n0\n4 0 0 1 180\n\n";
226 +        print RADSCN '#@rfluxmtx ' . ($tensortree ? "h=+sc$ns\n" : "h=+kf\n");
227 +        print RADSCN '#@rfluxmtx ' . "u=-Y o=$behinddat\n\n";
228 +        print RADSCN "void glow receiver_behind\n0\n0\n4 1 1 1 0\n\n";
229 +        print RADSCN "receiver_behind source b_receiver\n0\n0\n4 0 0 -1 180\n";
230 +        close RADSCN;
231 +        # Prepare sender surfaces
232 +        if ( $tensortree != 3 ) {       # Isotropic tensor tree is exception
233 +                open (RADSCN, "> $fsender");
234 +                print RADSCN '#@rfluxmtx u=-Y ' . ($tensortree ? "h=-sc$ns\n\n" : "h=-kf\n\n");
235 +                print RADSCN "void polygon fwd_sender\n0\n0\n12\n";
236 +                printf RADSCN "\t%e\t%e\t%e\n", $dim[0], $dim[2], $dim[4]-$FEPS;
237 +                printf RADSCN "\t%e\t%e\t%e\n", $dim[0], $dim[3], $dim[4]-$FEPS;
238 +                printf RADSCN "\t%e\t%e\t%e\n", $dim[1], $dim[3], $dim[4]-$FEPS;
239 +                printf RADSCN "\t%e\t%e\t%e\n", $dim[1], $dim[2], $dim[4]-$FEPS;
240 +                close RADSCN;
241 +                open (RADSCN, "> $bsender");
242 +                print RADSCN '#@rfluxmtx u=-Y ' . ($tensortree ? "h=+sc$ns\n\n" : "h=+kf\n\n");
243 +                print RADSCN "void polygon bwd_sender\n0\n0\n12\n";
244 +                printf RADSCN "\t%e\t%e\t%e\n", $dim[0], $dim[2], $dim[5]+$FEPS;
245 +                printf RADSCN "\t%e\t%e\t%e\n", $dim[1], $dim[2], $dim[5]+$FEPS;
246 +                printf RADSCN "\t%e\t%e\t%e\n", $dim[1], $dim[3], $dim[5]+$FEPS;
247 +                printf RADSCN "\t%e\t%e\t%e\n", $dim[0], $dim[3], $dim[5]+$FEPS;
248 +                close RADSCN;
249 +        }
250 +        print STDERR "Recover using: $0 -recover $td\n";
251 + }
252 + # Open unbuffered progress file
253 + open(MYPH, ">> $td/phase.txt");
254 + {
255 +        my $ofh = select MYPH;
256 +        $| = 1;
257 +        select $ofh;
258 + }
259 + $curphase = 0;
260   # Create data segments (all the work happens here)
261   if ( $tensortree ) {
262          do_tree_bsdf();
# Line 228 | Line 270 | die "Could not wrap BSDF data\n" if ( $? );
270   # Clean up temporary files and exit
271   exec $rmtmp;
272  
273 < #-------------- End of main program segment --------------#
273 > #============== End of main program segment ==============#
274  
275 + # Function to determine if next phase should be skipped or recovered
276 + sub do_phase {
277 +        $curphase++;
278 +        if ( defined $recovery ) {
279 +                if ( $recovery > $curphase ) { return 0; }
280 +                if ( $recovery == $curphase ) { return -1; }
281 +        }
282 +        print MYPH "$curphase\n";
283 +        return 1;
284 + }
285 +
286 + # Check if we are in active phase (not skipping parts)
287 + sub active_phase {
288 +        if ( defined $recovery ) {
289 +                if ( $recovery > $curphase ) { return 0; }
290 +                if ( $recovery == $curphase ) { return -1; }
291 +        }
292 +        return 1;
293 + }
294 +
295 + # Function to run program and check output if in active phase
296 + sub run_check {
297 +        if ( !active_phase() ) { return; }
298 +        my $cmd = shift;
299 +        # print STDERR "Running: $cmd\n";
300 +        system $cmd;
301 +        die "Failure running: $cmd\n" if ( $? );
302 + }
303 +
304   #++++++++++++++ Tensor tree BSDF generation ++++++++++++++#
305   sub do_tree_bsdf {
306  
# Line 242 | Line 313 | sub do_tree_bsdf {
313   # Call rfluxmtx and process tensor tree BSDF for the given direction
314   sub do_ttree_dir {
315          my $forw = shift;
316 +        my $dop = do_phase();
317 +        my $r = ($dop < 0) ? " -r" : "";
318          my $cmd;
319          if ( $tensortree == 3 ) {
320                  # Isotropic BSDF
# Line 257 | Line 330 | sub do_ttree_dir {
330                                  qq{-e "zp=$dim[5-$forw]" -e "myDz=Dz*($forw*2-1)" } .
331                                  qq{-e "\$1=xp-Dx;\$2=yp-Dy;\$3=zp-myDz" } .
332                                  qq{-e "\$4=Dx;\$5=Dy;\$6=myDz" } .
333 <                                "| $rfluxmtx -fa -y $ns2 - $receivers -i $octree";
333 >                                "| $rfluxmtx$r -fa -y $ns2 - $receivers -i $octree";
334                  } else {
335                          $cmd = "cnt $ns2 $ny $nx " .
336                                  qq{| rcalc -e "r1=rand(.8681*recno-.673892)" } .
# Line 269 | Line 342 | sub do_ttree_dir {
342                                  qq{-e "zp=$dim[5-$forw]" -e "myDz=Dz*($forw*2-1)" } .
343                                  qq{-e '\$1=xp-Dx;\$2=yp-Dy;\$3=zp-myDz' } .
344                                  qq{-e '\$4=Dx;\$5=Dy;\$6=myDz' -of } .
345 <                                "| $rfluxmtx -h -ff -y $ns2 - $receivers -i $octree";
345 >                                "| $rfluxmtx$r -h -ff -y $ns2 - $receivers -i $octree";
346                  }
347          } else {
348                  # Anisotropic BSDF
349                  my $sender = ($bsender,$fsender)[$forw];
350                  if ($windoz) {
351 <                        $cmd = "$rfluxmtx -fa $sender $receivers -i $octree";
351 >                        $cmd = "$rfluxmtx$r -fa $sender $receivers -i $octree";
352                  } else {
353 <                        $cmd = "$rfluxmtx -h -ff $sender $receivers -i $octree";
353 >                        $cmd = "$rfluxmtx$r -h -ff $sender $receivers -i $octree";
354                  }
355          }
356 <        # print STDERR "Starting: $cmd\n";
357 <        system $cmd;
358 <        die "Failure running rfluxmtx" if ( $? );
356 >        if ( $dop ) {
357 >                # print STDERR "Running: $cmd\n";
358 >                system $cmd;
359 >                die "Failure running rfluxmtx" if ( $? );
360 >        }
361          ttree_out($forw);
362   }       # end of do_ttree_dir()
363  
# Line 365 | Line 440 | sub ttree_comp {
440                          $cmd .= " -of $src " .
441                                          "| rttree_reduce$avg -h -ff -t $pcull -r $tensortree -g $ttlog2";
442                  }
443 <                # print STDERR "Running: $cmd\n";
369 <                system "$cmd > $dest";
370 <                die "Failure running rttree_reduce" if ( $? );
443 >                run_check "$cmd > $dest";
444          } else {
445                  if ($windoz) {
446                          $cmd = "rcollate -ho -oc 1 $src | " . $cmd ;
447                  } else {
448                          $cmd .= " $src";
449                  }
450 <                open(DATOUT, "> $dest");
451 <                print DATOUT "{\n";
452 <                close DATOUT;
453 <                # print STDERR "Running: $cmd\n";
454 <                system "$cmd >> $dest";
455 <                die "Failure running rcalc" if ( $? );
456 <                open(DATOUT, ">> $dest");
457 <                for (my $i = ($tensortree==3)*$ns*$ns*$ns/2; $i-- > 0; ) {
458 <                        print DATOUT "0\n";
450 >                if ( active_phase() ) {
451 >                        open(DATOUT, "> $dest");
452 >                        print DATOUT "{\n";
453 >                        close DATOUT;
454 >                        # print STDERR "Running: $cmd\n";
455 >                        system "$cmd >> $dest";
456 >                        die "Failure running rcalc" if ( $? );
457 >                        open(DATOUT, ">> $dest");
458 >                        for (my $i = ($tensortree==3)*$ns*$ns*$ns/2; $i-- > 0; ) {
459 >                                print DATOUT "0\n";
460 >                        }
461 >                        print DATOUT "}\n";
462 >                        close DATOUT;
463                  }
387 –                print DATOUT "}\n";
388 –                close DATOUT;
464          }
465          if ( "$spec" ne "$curspec" ) {
466                  $wrapper .= " -s $spec";
# Line 408 | Line 483 | sub do_matrix_bsdf {
483   # Call rfluxmtx and process tensor tree BSDF for the given direction
484   sub do_matrix_dir {
485          my $forw = shift;
486 <        my $cmd;
486 >        my $dop = do_phase();
487 >        my $r = ($dop < 0) ? " -r" : "";
488          my $sender = ($bsender,$fsender)[$forw];
489 <        $cmd = "$rfluxmtx -fd $sender $receivers -i $octree";
490 <        # print STDERR "Starting: $cmd\n";
491 <        system $cmd;
492 <        die "Failure running rfluxmtx" if ( $? );
489 >        my $cmd = "$rfluxmtx$r -fd $sender $receivers -i $octree";
490 >        if ( $dop ) {
491 >                # print STDERR "Running: $cmd\n";
492 >                system $cmd;
493 >                die "Failure running rfluxmtx" if ( $? );
494 >        }
495          matrix_out($forw);
496   }       # end of do_matrix_dir()
497  
# Line 458 | Line 536 | sub matrix_comp {
536                  $cmd .= " -c 0.0241 0.1229 0.8530";
537          }
538          $cmd .= " $src | rcollate -ho -oc 145";
539 <        # print STDERR "Running: $cmd\n";
462 <        system "$cmd > $dest";
463 <        die "Failure running rmtxop" if ( $? );
539 >        run_check "$cmd > $dest";
540          if ( "$spec" ne "$curspec" ) {
541                  $wrapper .= " -s $spec";
542                  $curspec = $spec;

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