# $1=output filename (foo_0.png...foo_4.png, foo_s0.png...foo_s4.png(
# $2=input filename (foo.g)
# $3=viewtype (0-4)
# $4=object (foo)
# $5=draft (0 or 1)
# stem_0.png, stem_1.png, ..., stem_4.png - normal views
# stem_s0.png, stem_s1.png, ..., stem_s4.png - small draft views

output=$1
input=$2
viewtype=$3
object=$4
draft=$5

size=1536
draftreduction="20%"

convertopts="-trim -flip -gamma 2.2"
edgeconvertopts="-type grayscale -resize $draftreduction -trim -flip -normalize"
rtopts="-s$size -C0/0/0 -A0.5"
# Must not be .o otherwise GNU Make has some builtin rule and it
# attempts to compile with CC.
interm=/tmp/rt_script_1_$$.temp
interm2=/tmp/rt_script_2_$$.temp
interm3=/tmp/rt_script_3_$$.temp

case $viewtype in
0)
view="-a32 -e25";
;;
1)
view="-a270 -e70";
;;
2)
view="-a260 -e10";
;;
3)
view="-a10 -e10";
;;
4)
view="-a0 -e-70";
;;
esac

rm -f $interm $interm2
case $draft in
0)
echo running rt $rtopts $view -o $interm $input $object

rt $rtopts $view -o $interm $input $object &&
# rtedge hangs.
# "rtedge seems to get stuck in a loop at the end of rendering, never
#  terminates (unless you rtabort/kill the process); works with -P1"
# http://brlcad.org/websvn/filedetails.php?repname=BRL-CAD&path=%2Fbrlcad%2Ftrunk%2FBUGS&rev=29224&peg=29405
rtedge -P1 -s$size $view -o $interm2 $input $object &&
pixmatte -g $interm2 =0/0/0 =0/0/0 $interm > $interm3
cat 3d/rawppm_header $interm3 | convert $convertopts - $output
;;
1)
# rtedge hangs.
# "rtedge seems to get stuck in a loop at the end of rendering, never
#  terminates (unless you rtabort/kill the process); works with -P1"
# http://brlcad.org/websvn/filedetails.php?repname=BRL-CAD&path=%2Fbrlcad%2Ftrunk%2FBUGS&rev=29224&peg=29405
rtedge -P1 -cset\ fg=0/0/0 -cset\ bg=255/255/255 -W -s$size $view -o $interm $input $object &&
cat 3d/rawppm_header $interm | convert $edgeconvertopts - $output
;;
esac &&
rm -f $interm $interm2 $interm3