1 |
greg |
2.1 |
#!/usr/bin/perl -w |
2 |
greg |
2.57 |
# RCSid $Id: genBSDF.pl,v 2.56 2015/04/01 01:38:35 greg Exp $ |
3 |
greg |
2.1 |
# |
4 |
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# Compute BSDF based on geometry and material description |
5 |
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# |
6 |
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# G. Ward |
7 |
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# |
8 |
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use strict; |
9 |
greg |
2.47 |
my $windoz = ($^O eq "MSWin32" or $^O eq "MSWin64"); |
10 |
greg |
2.13 |
use File::Temp qw/ :mktemp /; |
11 |
greg |
2.1 |
sub userror { |
12 |
greg |
2.57 |
print STDERR "Usage: genBSDF [-n Nproc][-c Nsamp][-W][-t{3|4} Nlog2][-r \"ropts\"][-s \"x=string;y=string\"][-dim xmin xmax ymin ymax zmin zmax][{+|-}C][{+|-}f][{+|-}b][{+|-}mgf][{+|-}geom units] [input ..]\n"; |
13 |
greg |
2.1 |
exit 1; |
14 |
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} |
15 |
greg |
2.49 |
my ($td,$radscn,$mgfscn,$octree,$fsender,$bsender,$receivers,$facedat,$behinddat,$rmtmp); |
16 |
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my ($tf,$rf,$tb,$rb,$tfx,$rfx,$tbx,$rbx,$tfz,$rfz,$tbz,$rbz); |
17 |
greg |
2.47 |
if ($windoz) { |
18 |
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my $tmploc = `echo \%TMP\%`; |
19 |
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chomp($tmploc); |
20 |
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$td = mkdtemp("$tmploc\\genBSDF.XXXXXX"); |
21 |
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$radscn = "$td\\device.rad"; |
22 |
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$mgfscn = "$td\\device.mgf"; |
23 |
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$octree = "$td\\device.oct"; |
24 |
greg |
2.49 |
$fsender = "$td\\fsender.rad"; |
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$bsender = "$td\\bsender.rad"; |
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$receivers = "$td\\receivers.rad"; |
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$facedat = "$td\\face.dat"; |
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$behinddat = "$td\\behind.dat"; |
29 |
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$tf = "$td\\tf.dat"; |
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$rf = "$td\\rf.dat"; |
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$tb = "$td\\tb.dat"; |
32 |
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$rb = "$td\\rb.dat"; |
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$tfx = "$td\\tfx.dat"; |
34 |
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$rfx = "$td\\rfx.dat"; |
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$tbx = "$td\\tbx.dat"; |
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$rbx = "$td\\rbx.dat"; |
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$tfz = "$td\\tfz.dat"; |
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$rfz = "$td\\rfz.dat"; |
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$tbz = "$td\\tbz.dat"; |
40 |
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$rbz = "$td\\rbz.dat"; |
41 |
greg |
2.47 |
chomp $td; |
42 |
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$rmtmp = "rmdir /S /Q $td"; |
43 |
greg |
2.49 |
} else { |
44 |
greg |
2.47 |
$td = mkdtemp("/tmp/genBSDF.XXXXXX"); |
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chomp $td; |
46 |
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$radscn = "$td/device.rad"; |
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$mgfscn = "$td/device.mgf"; |
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$octree = "$td/device.oct"; |
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greg |
2.49 |
$fsender = "$td/fsender.rad"; |
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$bsender = "$td/bsender.rad"; |
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$receivers = "$td/receivers.rad"; |
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$facedat = "$td/face.dat"; |
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$behinddat = "$td/behind.dat"; |
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$tf = "$td/tf.dat"; |
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$rf = "$td/rf.dat"; |
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$tb = "$td/tb.dat"; |
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$rb = "$td/rb.dat"; |
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$tfx = "$td/tfx.dat"; |
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$rfx = "$td/rfx.dat"; |
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$tbx = "$td/tbx.dat"; |
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$rbx = "$td/rbx.dat"; |
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$tfz = "$td/tfz.dat"; |
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$rfz = "$td/rfz.dat"; |
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$tbz = "$td/tbz.dat"; |
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$rbz = "$td/rbz.dat"; |
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greg |
2.47 |
$rmtmp = "rm -rf $td"; |
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} |
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greg |
2.20 |
my @savedARGV = @ARGV; |
69 |
greg |
2.53 |
my $rfluxmtx = "rfluxmtx -ab 5 -ad 700 -lw 3e-6"; |
70 |
greg |
2.49 |
my $wrapper = "wrapBSDF"; |
71 |
greg |
2.15 |
my $tensortree = 0; |
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my $ttlog2 = 4; |
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greg |
2.25 |
my $nsamp = 2000; |
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greg |
2.1 |
my $mgfin = 0; |
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my $geout = 1; |
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my $nproc = 1; |
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greg |
2.49 |
my $docolor = 0; |
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greg |
2.9 |
my $doforw = 0; |
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my $doback = 1; |
80 |
greg |
2.33 |
my $pctcull = 90; |
81 |
greg |
2.41 |
my $gunit = "meter"; |
82 |
greg |
2.49 |
my $curspec = "Visible"; |
83 |
greg |
2.1 |
my @dim; |
84 |
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# Get options |
85 |
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while ($#ARGV >= 0) { |
86 |
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if ("$ARGV[0]" =~ /^[-+]m/) { |
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$mgfin = ("$ARGV[0]" =~ /^\+/); |
88 |
greg |
2.10 |
} elsif ("$ARGV[0]" eq "-r") { |
89 |
greg |
2.49 |
$rfluxmtx .= " $ARGV[1]"; |
90 |
greg |
2.10 |
shift @ARGV; |
91 |
greg |
2.1 |
} elsif ("$ARGV[0]" =~ /^[-+]g/) { |
92 |
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$geout = ("$ARGV[0]" =~ /^\+/); |
93 |
greg |
2.22 |
$gunit = $ARGV[1]; |
94 |
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if ($gunit !~ /^(?i)(meter|foot|inch|centimeter|millimeter)$/) { |
95 |
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die "Illegal geometry unit '$gunit': must be meter, foot, inch, centimeter, or millimeter\n"; |
96 |
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} |
97 |
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shift @ARGV; |
98 |
greg |
2.49 |
} elsif ("$ARGV[0]" =~ /^[-+]C/) { |
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$docolor = ("$ARGV[0]" =~ /^\+/); |
100 |
greg |
2.9 |
} elsif ("$ARGV[0]" =~ /^[-+]f/) { |
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$doforw = ("$ARGV[0]" =~ /^\+/); |
102 |
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} elsif ("$ARGV[0]" =~ /^[-+]b/) { |
103 |
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$doback = ("$ARGV[0]" =~ /^\+/); |
104 |
greg |
2.27 |
} elsif ("$ARGV[0]" eq "-t") { |
105 |
greg |
2.33 |
# Use value < 0 for rttree_reduce bypass |
106 |
greg |
2.27 |
$pctcull = $ARGV[1]; |
107 |
greg |
2.55 |
if ($pctcull >= 100) { |
108 |
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die "Illegal -t culling percentage, must be < 100\n"; |
109 |
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} |
110 |
greg |
2.27 |
shift @ARGV; |
111 |
greg |
2.15 |
} elsif ("$ARGV[0]" =~ /^-t[34]$/) { |
112 |
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$tensortree = substr($ARGV[0], 2, 1); |
113 |
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$ttlog2 = $ARGV[1]; |
114 |
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shift @ARGV; |
115 |
greg |
2.55 |
} elsif ("$ARGV[0]" eq "-s") { |
116 |
greg |
2.49 |
$wrapper .= " -f \"$ARGV[1]\""; |
117 |
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shift @ARGV; |
118 |
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} elsif ("$ARGV[0]" eq "-W") { |
119 |
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$wrapper .= " -W"; |
120 |
greg |
2.1 |
} elsif ("$ARGV[0]" eq "-c") { |
121 |
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$nsamp = $ARGV[1]; |
122 |
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shift @ARGV; |
123 |
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} elsif ("$ARGV[0]" eq "-n") { |
124 |
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$nproc = $ARGV[1]; |
125 |
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shift @ARGV; |
126 |
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} elsif ("$ARGV[0]" =~ /^-d/) { |
127 |
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userror() if ($#ARGV < 6); |
128 |
greg |
2.8 |
@dim = @ARGV[1..6]; |
129 |
greg |
2.1 |
shift @ARGV for (1..6); |
130 |
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} elsif ("$ARGV[0]" =~ /^[-+]./) { |
131 |
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userror(); |
132 |
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} else { |
133 |
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last; |
134 |
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} |
135 |
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shift @ARGV; |
136 |
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} |
137 |
greg |
2.9 |
# Check that we're actually being asked to do something |
138 |
greg |
2.15 |
die "Must have at least one of +forward or +backward\n" if (!$doforw && !$doback); |
139 |
greg |
2.48 |
# Issue warning for unhandled reciprocity case |
140 |
greg |
2.49 |
print STDERR "Warning: recommend both +forward and +backward with -t3\n" if |
141 |
greg |
2.48 |
($tensortree==3 && !($doforw && $doback)); |
142 |
greg |
2.49 |
$wrapper .= $tensortree ? " -a t$tensortree" : " -a kf -c"; |
143 |
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$wrapper .= " -u $gunit"; |
144 |
greg |
2.1 |
# Get scene description and dimensions |
145 |
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if ( $mgfin ) { |
146 |
greg |
2.49 |
system "mgf2rad @ARGV > $radscn"; |
147 |
greg |
2.1 |
die "Could not load MGF input\n" if ( $? ); |
148 |
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} else { |
149 |
greg |
2.13 |
system "xform -e @ARGV > $radscn"; |
150 |
greg |
2.1 |
die "Could not load Radiance input\n" if ( $? ); |
151 |
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} |
152 |
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if ($#dim != 5) { |
153 |
greg |
2.7 |
@dim = split ' ', `getbbox -h $radscn`; |
154 |
greg |
2.1 |
} |
155 |
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print STDERR "Warning: Device extends into room\n" if ($dim[5] > 1e-5); |
156 |
greg |
2.49 |
$wrapper .= ' -f "t=' . ($dim[5] - $dim[4]) . ';w=' . ($dim[1] - $dim[0]) . |
157 |
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';h=' . ($dim[3] - $dim[2]) . '"'; |
158 |
greg |
2.1 |
# Generate octree |
159 |
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system "oconv -w $radscn > $octree"; |
160 |
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die "Could not compile scene\n" if ( $? ); |
161 |
greg |
2.49 |
# Add MGF description if requested |
162 |
greg |
2.15 |
if ( $geout ) { |
163 |
greg |
2.49 |
open(MGFSCN, "> $mgfscn"); |
164 |
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printf MGFSCN "xf -t %.6f %.6f 0\n", -($dim[0]+$dim[1])/2, -($dim[2]+$dim[3])/2; |
165 |
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close MGFSCN; |
166 |
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if ( $mgfin ) { |
167 |
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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}; |
168 |
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} else { |
169 |
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system "rad2mgf $radscn >> $mgfscn"; |
170 |
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} |
171 |
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open(MGFSCN, ">> $mgfscn"); |
172 |
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print MGFSCN "xf\n"; |
173 |
greg |
2.15 |
close MGFSCN; |
174 |
greg |
2.49 |
$wrapper .= " -g $mgfscn"; |
175 |
greg |
2.15 |
} |
176 |
greg |
2.49 |
# Create receiver & sender surfaces (rectangular) |
177 |
greg |
2.56 |
my $FEPS = 1e-5; |
178 |
greg |
2.46 |
my $nx = int(sqrt($nsamp*($dim[1]-$dim[0])/($dim[3]-$dim[2])) + 1); |
179 |
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my $ny = int($nsamp/$nx + 1); |
180 |
greg |
2.15 |
$nsamp = $nx * $ny; |
181 |
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my $ns = 2**$ttlog2; |
182 |
greg |
2.49 |
open(RADSCN, "> $receivers"); |
183 |
greg |
2.56 |
print RADSCN '#@rfluxmtx ' . ($tensortree ? "h=-sc$ns\n" : "h=-kf\n"); |
184 |
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print RADSCN '#@rfluxmtx ' . "u=-Y o=$facedat\n\n"; |
185 |
greg |
2.49 |
print RADSCN "void glow receiver_face\n0\n0\n4 1 1 1 0\n\n"; |
186 |
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print RADSCN "receiver_face source f_receiver\n0\n0\n4 0 0 1 180\n\n"; |
187 |
greg |
2.56 |
print RADSCN '#@rfluxmtx ' . ($tensortree ? "h=+sc$ns\n" : "h=+kf\n"); |
188 |
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print RADSCN '#@rfluxmtx ' . "u=-Y o=$behinddat\n\n"; |
189 |
greg |
2.49 |
print RADSCN "void glow receiver_behind\n0\n0\n4 1 1 1 0\n\n"; |
190 |
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print RADSCN "receiver_behind source b_receiver\n0\n0\n4 0 0 -1 180\n"; |
191 |
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close RADSCN; |
192 |
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# Finish rfluxmtx command and prepare sender surfaces |
193 |
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$rfluxmtx .= " -n $nproc -c $nsamp"; |
194 |
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if ( $tensortree != 3 ) { # Isotropic tensor tree is exception |
195 |
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open (RADSCN, "> $fsender"); |
196 |
greg |
2.56 |
print RADSCN '#@rfluxmtx u=-Y ' . ($tensortree ? "h=-sc$ns\n\n" : "h=-kf\n\n"); |
197 |
greg |
2.49 |
print RADSCN "void polygon fwd_sender\n0\n0\n12\n"; |
198 |
greg |
2.56 |
printf RADSCN "\t%e\t%e\t%e\n", $dim[0], $dim[2], $dim[4]-$FEPS; |
199 |
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printf RADSCN "\t%e\t%e\t%e\n", $dim[0], $dim[3], $dim[4]-$FEPS; |
200 |
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printf RADSCN "\t%e\t%e\t%e\n", $dim[1], $dim[3], $dim[4]-$FEPS; |
201 |
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printf RADSCN "\t%e\t%e\t%e\n", $dim[1], $dim[2], $dim[4]-$FEPS; |
202 |
greg |
2.49 |
close RADSCN; |
203 |
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open (RADSCN, "> $bsender"); |
204 |
greg |
2.56 |
print RADSCN '#@rfluxmtx u=-Y ' . ($tensortree ? "h=+sc$ns\n\n" : "h=+kf\n\n"); |
205 |
greg |
2.55 |
print RADSCN "void polygon bwd_sender\n0\n0\n12\n"; |
206 |
greg |
2.56 |
printf RADSCN "\t%e\t%e\t%e\n", $dim[0], $dim[2], $dim[5]+$FEPS; |
207 |
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printf RADSCN "\t%e\t%e\t%e\n", $dim[1], $dim[2], $dim[5]+$FEPS; |
208 |
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printf RADSCN "\t%e\t%e\t%e\n", $dim[1], $dim[3], $dim[5]+$FEPS; |
209 |
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printf RADSCN "\t%e\t%e\t%e\n", $dim[0], $dim[3], $dim[5]+$FEPS; |
210 |
greg |
2.49 |
close RADSCN; |
211 |
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} |
212 |
greg |
2.53 |
# Calculate CIE (u',v') from Radiance RGB: |
213 |
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my $CIEuv = 'Xi=.5141*Ri+.3239*Gi+.1620*Bi;' . |
214 |
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'Yi=.2651*Ri+.6701*Gi+.0648*Bi;' . |
215 |
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'Zi=.0241*Ri+.1229*Gi+.8530*Bi;' . |
216 |
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'den=Xi+15*Yi+3*Zi;' . |
217 |
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'uprime=4*Xi/den;vprime=9*Yi/den;' ; |
218 |
greg |
2.15 |
# Create data segments (all the work happens here) |
219 |
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if ( $tensortree ) { |
220 |
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do_tree_bsdf(); |
221 |
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} else { |
222 |
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do_matrix_bsdf(); |
223 |
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} |
224 |
greg |
2.49 |
# Output XML |
225 |
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my $old_fh = select(STDOUT); |
226 |
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$| = 1; |
227 |
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select($old_fh); |
228 |
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print "<!-- Created by: genBSDF @savedARGV -->\n"; |
229 |
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# print STDERR "Running: $wrapper\n"; |
230 |
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system $wrapper; |
231 |
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die "Could not wrap BSDF data\n" if ( $? ); |
232 |
greg |
2.15 |
# Clean up temporary files and exit |
233 |
greg |
2.53 |
exec $rmtmp; |
234 |
greg |
2.16 |
|
235 |
greg |
2.15 |
#-------------- End of main program segment --------------# |
236 |
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|
237 |
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#++++++++++++++ Tensor tree BSDF generation ++++++++++++++# |
238 |
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sub do_tree_bsdf { |
239 |
greg |
2.49 |
|
240 |
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# Run rfluxmtx processes to compute each side |
241 |
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do_ttree_dir(0) if ( $doback ); |
242 |
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do_ttree_dir(1) if ( $doforw ); |
243 |
greg |
2.36 |
|
244 |
greg |
2.15 |
} # end of sub do_tree_bsdf() |
245 |
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|
246 |
greg |
2.49 |
# Call rfluxmtx and process tensor tree BSDF for the given direction |
247 |
|
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sub do_ttree_dir { |
248 |
greg |
2.15 |
my $forw = shift; |
249 |
greg |
2.47 |
my $cmd; |
250 |
greg |
2.15 |
if ( $tensortree == 3 ) { |
251 |
|
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# Isotropic BSDF |
252 |
greg |
2.36 |
my $ns2 = $ns / 2; |
253 |
greg |
2.47 |
if ($windoz) { |
254 |
|
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$cmd = "cnt $ns2 $ny $nx " . |
255 |
|
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qq{| rcalc -e "r1=rand(.8681*recno-.673892)" } . |
256 |
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qq{-e "r2=rand(-5.37138*recno+67.1737811)" } . |
257 |
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qq{-e "r3=rand(+3.17603772*recno+83.766771)" } . |
258 |
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qq{-e "Dx=1-2*(\$1+r1)/$ns;Dy:0;Dz=sqrt(1-Dx*Dx)" } . |
259 |
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qq{-e "xp=(\$3+r2)*(($dim[1]-$dim[0])/$nx)+$dim[0]" } . |
260 |
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qq{-e "yp=(\$2+r3)*(($dim[3]-$dim[2])/$ny)+$dim[2]" } . |
261 |
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qq{-e "zp=$dim[5-$forw]" -e "myDz=Dz*($forw*2-1)" } . |
262 |
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qq{-e "\$1=xp-Dx;\$2=yp-Dy;\$3=zp-myDz" } . |
263 |
|
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qq{-e "\$4=Dx;\$5=Dy;\$6=myDz" } . |
264 |
greg |
2.49 |
"| $rfluxmtx -fa -y $ns2 - $receivers -i $octree"; |
265 |
greg |
2.47 |
} else { |
266 |
|
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$cmd = "cnt $ns2 $ny $nx " . |
267 |
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qq{| rcalc -e "r1=rand(.8681*recno-.673892)" } . |
268 |
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qq{-e "r2=rand(-5.37138*recno+67.1737811)" } . |
269 |
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qq{-e "r3=rand(+3.17603772*recno+83.766771)" } . |
270 |
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qq{-e "Dx=1-2*(\$1+r1)/$ns;Dy:0;Dz=sqrt(1-Dx*Dx)" } . |
271 |
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qq{-e "xp=(\$3+r2)*(($dim[1]-$dim[0])/$nx)+$dim[0]" } . |
272 |
|
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qq{-e "yp=(\$2+r3)*(($dim[3]-$dim[2])/$ny)+$dim[2]" } . |
273 |
|
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qq{-e "zp=$dim[5-$forw]" -e "myDz=Dz*($forw*2-1)" } . |
274 |
|
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qq{-e '\$1=xp-Dx;\$2=yp-Dy;\$3=zp-myDz' } . |
275 |
|
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qq{-e '\$4=Dx;\$5=Dy;\$6=myDz' -of } . |
276 |
greg |
2.49 |
"| $rfluxmtx -h -ff -y $ns2 - $receivers -i $octree"; |
277 |
greg |
2.47 |
} |
278 |
greg |
2.15 |
} else { |
279 |
|
|
# Anisotropic BSDF |
280 |
greg |
2.49 |
my $sender = ($bsender,$fsender)[$forw]; |
281 |
greg |
2.47 |
if ($windoz) { |
282 |
greg |
2.49 |
$cmd = "$rfluxmtx -fa $sender $receivers -i $octree"; |
283 |
greg |
2.47 |
} else { |
284 |
greg |
2.49 |
$cmd = "$rfluxmtx -h -ff $sender $receivers -i $octree"; |
285 |
greg |
2.47 |
} |
286 |
greg |
2.15 |
} |
287 |
greg |
2.49 |
# print STDERR "Starting: $cmd\n"; |
288 |
|
|
system $cmd; |
289 |
|
|
die "Failure running rfluxmtx" if ( $? ); |
290 |
greg |
2.36 |
ttree_out($forw); |
291 |
greg |
2.49 |
} # end of do_ttree_dir() |
292 |
greg |
2.15 |
|
293 |
greg |
2.49 |
# Simplify and store tensor tree results |
294 |
greg |
2.15 |
sub ttree_out { |
295 |
|
|
my $forw = shift; |
296 |
greg |
2.49 |
my ($refldat,$transdat); |
297 |
|
|
if ( $forw ) { |
298 |
|
|
$transdat = $facedat; |
299 |
|
|
$refldat = $behinddat; |
300 |
greg |
2.47 |
} else { |
301 |
greg |
2.49 |
$transdat = $behinddat; |
302 |
|
|
$refldat = $facedat; |
303 |
greg |
2.47 |
} |
304 |
greg |
2.49 |
# Only output one transmitted anisotropic distribution, preferring backwards |
305 |
|
|
if ( !$forw || !$doback || $tensortree==3 ) { |
306 |
|
|
my $ttyp = ("tb","tf")[$forw]; |
307 |
|
|
ttree_comp($ttyp, "Visible", $transdat, ($tb,$tf)[$forw]); |
308 |
|
|
if ( $docolor ) { |
309 |
greg |
2.53 |
ttree_comp($ttyp, "CIE-u", $transdat, ($tbx,$tfx)[$forw]); |
310 |
|
|
ttree_comp($ttyp, "CIE-v", $transdat, ($tbz,$tfz)[$forw]); |
311 |
greg |
2.49 |
} |
312 |
greg |
2.47 |
} |
313 |
greg |
2.49 |
# Output reflection |
314 |
|
|
my $rtyp = ("rb","rf")[$forw]; |
315 |
|
|
ttree_comp($rtyp, "Visible", $refldat, ($rb,$rf)[$forw]); |
316 |
|
|
if ( $docolor ) { |
317 |
greg |
2.53 |
ttree_comp($rtyp, "CIE-u", $refldat, ($rbx,$rfx)[$forw]); |
318 |
|
|
ttree_comp($rtyp, "CIE-v", $refldat, ($rbz,$rfz)[$forw]); |
319 |
greg |
2.34 |
} |
320 |
greg |
2.49 |
} # end of ttree_out() |
321 |
|
|
|
322 |
|
|
# Call rttree_reduce on the given component |
323 |
|
|
sub ttree_comp { |
324 |
|
|
my $typ = shift; |
325 |
|
|
my $spec = shift; |
326 |
|
|
my $src = shift; |
327 |
|
|
my $dest = shift; |
328 |
|
|
my $cmd; |
329 |
greg |
2.47 |
if ($windoz) { |
330 |
greg |
2.49 |
if ("$spec" eq "Visible") { |
331 |
|
|
$cmd = qq{rcalc -e "Omega:PI/($ns*$ns)" } . |
332 |
greg |
2.53 |
q{-e "Ri=$1;Gi=$2;Bi=$3" } . |
333 |
|
|
qq{-e "$CIEuv" } . |
334 |
|
|
q{-e "$1=Yi/Omega"}; |
335 |
|
|
} elsif ("$spec" eq "CIE-u") { |
336 |
greg |
2.54 |
$cmd = q{rcalc -e "Ri=$1;Gi=$2;Bi=$3" } . |
337 |
greg |
2.53 |
qq{-e "$CIEuv" } . |
338 |
greg |
2.54 |
q{-e "$1=uprime"}; |
339 |
greg |
2.53 |
} elsif ("$spec" eq "CIE-v") { |
340 |
greg |
2.54 |
$cmd = q{rcalc -e "Ri=$1;Gi=$2;Bi=$3" } . |
341 |
greg |
2.53 |
qq{-e "$CIEuv" } . |
342 |
greg |
2.54 |
q{-e "$1=vprime"}; |
343 |
greg |
2.49 |
} |
344 |
greg |
2.47 |
} else { |
345 |
greg |
2.49 |
if ("$spec" eq "Visible") { |
346 |
|
|
$cmd = "rcalc -if3 -e 'Omega:PI/($ns*$ns)' " . |
347 |
greg |
2.53 |
q{-e 'Ri=$1;Gi=$2;Bi=$3' } . |
348 |
|
|
"-e '$CIEuv' " . |
349 |
|
|
q{-e '$1=Yi/Omega'}; |
350 |
|
|
} elsif ("$spec" eq "CIE-u") { |
351 |
greg |
2.54 |
$cmd = q{rcalc -if3 -e 'Ri=$1;Gi=$2;Bi=$3' } . |
352 |
greg |
2.53 |
"-e '$CIEuv' " . |
353 |
greg |
2.54 |
q{-e '$1=uprime'}; |
354 |
greg |
2.53 |
} elsif ("$spec" eq "CIE-v") { |
355 |
greg |
2.54 |
$cmd = q{rcalc -if3 -e 'Ri=$1;Gi=$2;Bi=$3' } . |
356 |
greg |
2.53 |
"-e '$CIEuv' " . |
357 |
greg |
2.54 |
q{-e '$1=vprime'}; |
358 |
greg |
2.49 |
} |
359 |
greg |
2.47 |
} |
360 |
greg |
2.49 |
if ($pctcull >= 0) { |
361 |
|
|
my $avg = ( "$typ" =~ /^r[fb]/ ) ? " -a" : ""; |
362 |
greg |
2.53 |
my $pcull = ("$spec" eq "Visible") ? $pctcull : |
363 |
greg |
2.55 |
(100 - (100-$pctcull)*.25) ; |
364 |
greg |
2.49 |
if ($windoz) { |
365 |
|
|
$cmd = "rcollate -ho -oc 1 $src | " . |
366 |
|
|
$cmd . |
367 |
greg |
2.53 |
" | rttree_reduce$avg -h -fa -t $pcull -r $tensortree -g $ttlog2"; |
368 |
greg |
2.49 |
} else { |
369 |
|
|
$cmd .= " -of $src " . |
370 |
greg |
2.53 |
"| rttree_reduce$avg -h -ff -t $pcull -r $tensortree -g $ttlog2"; |
371 |
greg |
2.49 |
} |
372 |
|
|
# print STDERR "Running: $cmd\n"; |
373 |
|
|
system "$cmd > $dest"; |
374 |
|
|
die "Failure running rttree_reduce" if ( $? ); |
375 |
greg |
2.47 |
} else { |
376 |
greg |
2.49 |
if ($windoz) { |
377 |
|
|
$cmd = "rcollate -ho -oc 1 $src | " . $cmd ; |
378 |
|
|
} else { |
379 |
|
|
$cmd .= " $src"; |
380 |
|
|
} |
381 |
|
|
open(DATOUT, "> $dest"); |
382 |
|
|
print DATOUT "{\n"; |
383 |
|
|
close DATOUT; |
384 |
|
|
# print STDERR "Running: $cmd\n"; |
385 |
|
|
system "$cmd >> $dest"; |
386 |
|
|
die "Failure running rcalc" if ( $? ); |
387 |
|
|
open(DATOUT, ">> $dest"); |
388 |
|
|
for (my $i = ($tensortree==3)*$ns*$ns*$ns/2; $i-- > 0; ) { |
389 |
|
|
print DATOUT "0\n"; |
390 |
|
|
} |
391 |
|
|
print DATOUT "}\n"; |
392 |
|
|
close DATOUT; |
393 |
greg |
2.47 |
} |
394 |
greg |
2.49 |
if ( "$spec" ne "$curspec" ) { |
395 |
greg |
2.51 |
$wrapper .= " -s $spec"; |
396 |
greg |
2.49 |
$curspec = $spec; |
397 |
greg |
2.34 |
} |
398 |
greg |
2.49 |
$wrapper .= " -$typ $dest"; |
399 |
|
|
} # end of ttree_comp() |
400 |
greg |
2.15 |
|
401 |
|
|
#------------- End of do_tree_bsdf() & subroutines -------------# |
402 |
|
|
|
403 |
|
|
#+++++++++++++++ Klems matrix BSDF generation +++++++++++++++# |
404 |
|
|
sub do_matrix_bsdf { |
405 |
greg |
2.49 |
|
406 |
|
|
# Run rfluxmtx processes to compute each side |
407 |
|
|
do_matrix_dir(0) if ( $doback ); |
408 |
|
|
do_matrix_dir(1) if ( $doforw ); |
409 |
|
|
|
410 |
|
|
} # end of sub do_matrix_bsdf() |
411 |
|
|
|
412 |
|
|
# Call rfluxmtx and process tensor tree BSDF for the given direction |
413 |
|
|
sub do_matrix_dir { |
414 |
|
|
my $forw = shift; |
415 |
|
|
my $cmd; |
416 |
|
|
my $sender = ($bsender,$fsender)[$forw]; |
417 |
|
|
$cmd = "$rfluxmtx -fd $sender $receivers -i $octree"; |
418 |
|
|
# print STDERR "Starting: $cmd\n"; |
419 |
|
|
system $cmd; |
420 |
|
|
die "Failure running rfluxmtx" if ( $? ); |
421 |
|
|
matrix_out($forw); |
422 |
|
|
} # end of do_matrix_dir() |
423 |
|
|
|
424 |
|
|
sub matrix_out { |
425 |
|
|
my $forw = shift; |
426 |
|
|
my ($refldat,$transdat); |
427 |
|
|
if ( $forw ) { |
428 |
|
|
$transdat = $facedat; |
429 |
|
|
$refldat = $behinddat; |
430 |
greg |
2.47 |
} else { |
431 |
greg |
2.49 |
$transdat = $behinddat; |
432 |
|
|
$refldat = $facedat; |
433 |
greg |
2.47 |
} |
434 |
greg |
2.49 |
# Output transmission |
435 |
|
|
my $ttyp = ("tb","tf")[$forw]; |
436 |
|
|
matrix_comp($ttyp, "Visible", $transdat, ($tb,$tf)[$forw]); |
437 |
|
|
if ( $docolor ) { |
438 |
|
|
matrix_comp($ttyp, "CIE-X", $transdat, ($tbx,$tfx)[$forw]); |
439 |
|
|
matrix_comp($ttyp, "CIE-Z", $transdat, ($tbz,$tfz)[$forw]); |
440 |
|
|
} |
441 |
|
|
# Output reflection |
442 |
|
|
my $rtyp = ("rb","rf")[$forw]; |
443 |
|
|
matrix_comp($rtyp, "Visible", $refldat, ($rb,$rf)[$forw]); |
444 |
|
|
if ( $docolor ) { |
445 |
|
|
matrix_comp($rtyp, "CIE-X", $refldat, ($rbx,$rfx)[$forw]); |
446 |
|
|
matrix_comp($rtyp, "CIE-Z", $refldat, ($rbz,$rfz)[$forw]); |
447 |
|
|
} |
448 |
|
|
} # end of matrix_out() |
449 |
|
|
|
450 |
|
|
# Transpose matrix component data and save to file |
451 |
|
|
sub matrix_comp { |
452 |
|
|
my $typ = shift; |
453 |
|
|
my $spec = shift; |
454 |
|
|
my $src = shift; |
455 |
|
|
my $dest = shift; |
456 |
|
|
my $cmd = "rmtxop -fa -t"; |
457 |
|
|
if ("$spec" eq "Visible") { |
458 |
greg |
2.55 |
$cmd .= " -c 0.2651 0.6701 0.0648"; |
459 |
greg |
2.49 |
} elsif ("$spec" eq "CIE-X") { |
460 |
greg |
2.55 |
$cmd .= " -c 0.5141 0.3239 0.1620"; |
461 |
greg |
2.49 |
} elsif ("$spec" eq "CIE-Z") { |
462 |
greg |
2.55 |
$cmd .= " -c 0.0241 0.1229 0.8530"; |
463 |
greg |
2.49 |
} |
464 |
greg |
2.52 |
$cmd .= " $src | rcollate -ho -oc 145"; |
465 |
greg |
2.49 |
# print STDERR "Running: $cmd\n"; |
466 |
|
|
system "$cmd > $dest"; |
467 |
|
|
die "Failure running rttree_reduce" if ( $? ); |
468 |
|
|
if ( "$spec" ne "$curspec" ) { |
469 |
greg |
2.51 |
$wrapper .= " -s $spec"; |
470 |
greg |
2.49 |
$curspec = $spec; |
471 |
greg |
2.47 |
} |
472 |
greg |
2.49 |
$wrapper .= " -$typ $dest"; |
473 |
|
|
} # end of matrix_comp() |
474 |
greg |
2.47 |
|
475 |
greg |
2.49 |
#------------- End of do_matrix_bsdf() & subroutines --------------# |