RenderLabManual.py

#!/usr/bin/env python

import os
from os.path import getmtime, exists
import subprocess

def run(file,output=None,scene=None):

    filename = file + '.blend'
    imagename = (output if output else file) + '_#.png'
    imagefilename = imagename.replace('#','1')

    # Note: to speed up, remove -t 4
    if not exists(imagefilename) or getmtime(filename) > getmtime(imagefilename):
        retcode = subprocess.call('blender -b -t 4 {filename} {scene} -o //{output} -F PNG -f 1'
                  .format(
                      filename = filename,
                      scene = '-S ' + scene if scene else '',
                      output = imagename), shell=True)
        if retcode < 0:
            RuntimeError('Process terminated.')

if __name__ == '__main__':
    run('Chap1')
    run('Chap2')
    run('Chap3','Chap3','Scene')
    run('Chap5','Chap3_tilt','Scene3')
    run('Chap5','Chap3_hanging','Scene4')
    run('Chap3','Chap4','Scene1')
    run('Chap5','Chap5_carts','Scene')
    run('Chap5','Chap5','Scene2')
    run('Chap6','Chap6a','Scene')
    run('Chap6','Chap6b','Scene1')
    run('Chap6Bar')
    run('Chap7','Chap7a','Scene1')
    run('Chap7','Chap7b','Scene')
    run('Chap7','Chap7c','Scene2')
    run('Chap7Bar')
    run('Chap8')
    run('Chap9')
    run('Chap10','Chap10a','Scene')
    run('Chap10','Chap10b','Scene1')
    run('Chap11','Chap11a','Scene')
    run('Chap11','Chap11b','Scene1')