#!/bin/sh cat scene | c-ray-mt -t 1 > foo.ppm md5sum foo.ppm cat scene | c-ray-mt -t 2 > foo.ppm md5sum foo.ppm cat scene | c-ray-mt -t 4 > foo.ppm md5sum foo.ppm cat scene | c-ray-mt -t 8 > foo.ppm md5sum foo.ppm cat scene | c-ray-mt -t 16 > foo.ppm md5sum foo.ppm cat scene | c-ray-mt -t 32 > foo.ppm md5sum foo.ppm