1#!/bin/bash
2rm -f render.png cgal.png preview.png
3./openscad_nogui $1 -o preview.png
4./openscad_nogui $1 -o render.png --render
5./openscad_nogui $1 -o cgal.png --render=cgal
6
7for type in preview render cgal; do
8  echo -n "$type: "
9  if [ -f $type.png ]; then
10    if [ -s $type.png ]; then
11      diff $type.png empty.png > /dev/null
12      if [ $? -eq 0 ]; then
13        echo "Empty"
14      else
15        echo "X"
16      fi
17    else
18      echo "Zero"
19    fi
20  else
21    echo "None"
22  fi
23done
24