#!/bin/sh

if [ ! -d $1 ] ; then
	echo "no such directory -> $1"
	exit
fi

POVRAY="povray -W1024 -H768 -d" 

echo "processing $1 ..."

for file in $1/povray_*.in ; do
	cat > temp.pov <<-EOF
#include "colors.inc"
#include "textures.inc"
#include "shapes.inc"
#include "glass.inc"
#include "metals.inc"
#include "woods.inc"
#include "stones.inc"
EOF

	# meta info
	count=`grep '# \[C\]' $file | awk '{ print $3 }'`
	time=`grep '# \[T\]' $file | awk '{ print $3 }'`
	camloc=`grep '# \[L\]' $file | awk '{ print $3 }'`

	# atoms
	cat $file | grep -v '#' | while read radius x y z ; do #temp dis; do
		cat >> temp.pov <<-EOF
sphere {
	<$x, $z, $y>, $radius
	texture {
		pigment { color Yellow }
		finish {
			phong 1
			metallic
		 }
	}
}
EOF
	done

	# boundaries
	cat $file | grep '# \[D\]' | while read foo bar x1 y1 z1 x2 y2 z2 ; do
		cat >> temp.pov <<-EOF
cylinder {
	<$x1, $z1, $y1>, <$x2, $z2, $y2>, 0.05
	pigment { color White }
}
EOF
	done

	# add camera and light source
	cat >> temp.pov <<-EOF
camera {
//	orthographic
	location $camloc
	look_at <0,0,0>
}
light_source { <0,10000,0> color White shadowless }
EOF

	# mv png
	$POVRAY temp.pov > /dev/null 2>&1
	mv temp.png `echo $file | sed 's/\.in/\.png/'`

done

echo "done"