/usr/bin/genambpos is in radiance 4R0+20110410-1build1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 | #!/bin/csh -f
# RCSid $Id: genambpos.csh,v 3.2 2004/05/17 16:35:14 greg Exp $
# Mark ambient locations
#
# John Mardaljevic
# Institute of Energy and Sustainable Development
# De Montfort University
# The Gateway
# Leicester
# LE1 9BH, UK
# +44 (0) 116 257 7972
# +44 (0) 116 257 7981 (fax)
#
# jm@dmu.ac.uk
# http://www.iesd.dmu.ac.uk/~jm
set ambdat=none
set radius=0.05
alias readvar 'echo -n Enter \!:1 "[$\!:1]: ";set ans="$<";if("$ans" != "")set \!:1="$ans"'
cat <<_EOF_
CREATE SCENE DESCRIPTION MARKERS FOR
AMBIENT SAMPLING LOCATIONS
This script puts coloured markers (spheres) at points where hemispherical
sampling was initiated. The locations and levels are taken from the binary
ambient file. The levels are colour coded -
Level 0 = red
Level 1 = green
Level 2 = blue
Level 3 = yellow
Level 4 = cyan
Level 5 = magenta
Level 6 = pink
To view the locations, include the file "amb_pos.rad" when re-creating
the octree.
_EOF_
rm -f amb_pos.rad
echo "Input ambient file"
readvar ambdat
echo "Input marker sphere radius"
readvar radius
getinfo $ambdat
lookamb -d -h $ambdat > af$$.tmp
set red=(1 0 0 1 0 1 1)
set grn=(0 1 0 1 1 0 0.5)
set blu=(0 0 1 0 1 1 0.5)
foreach j (1 2 3 4 5 6 7)
@ i = $j - 1
rcalc -e 'cond=eq($7,'"$i"');eq(a,b)=if(a-b+1e-7,b-a+1e-7,-1);$1=$1;$2=$2;$3=$3' af$$.tmp > amb_pos_lev$i
set empt=`wc -l < amb_pos_lev$i`
if ($empt !~ 0) then
echo "$empt ambient locations for level $i"
cat > sph_lev$i.fmt << _EOF_
mat_lev$i sphere sph_lev$i.\${recno}
0
0
4 \${ x1 } \${ y1 } \${ z1 } $radius
_EOF_
cat >> amb_pos.rad << _EOF_
void plastic mat_lev$i
0
0
5 $red[$j] $grn[$j] $blu[$j] 0 0
!rcalc -e 'x1=\$1;y1=\$2;z1=\$3' -o sph_lev$i.fmt amb_pos_lev$i
_EOF_
else
rm amb_pos_lev$i
endif
end
rm af$$.tmp
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