#!/bin/sh
STEPS=20
while true
do
	case $1 in
	--steps)
		shift
		STEPS=$1
		shift
		;;
	*)
		break
	esac
done
if [ "$#" != 2 ] ; then
	echo scadmovie file.scad view
else
	OUTDIR=/tmp/scadmovie.dir
	rm -fr $OUTDIR
	mkdir $OUTDIR
	for ((i=0; i<$STEPS; i++))
	do
		STEP=`echo $i / $STEPS | bc -l`
		NUM=`printf "%03d" $i`
		openscad --camera 120,120,700,0,0,0,100 -o $OUTDIR/frame-$NUM.png -D'$t='$STEP -Dview=\"$2\" "$1"
	done
	convert $OUTDIR/*.png -set delay 1x24 /tmp/$2.gif
fi