Writing a python script for processing scenes with xsibatch


Here’s the basic skeleton of a Python script that calls xsibatch -processing -script on all scene files in a given folder.

Python command line:
The python script takes two arguments: the root folder for the location of the scene files, and the name of the script file to run with xsibatch -script.

python process_scenes.pys --dir ""C:\Program Files\Autodesk\Softimage 2013 SP1\Data\XSI_SAMPLES\Scenes" --script "test.pys"

process_scenes.pys:
The python script takes care of finding all the scene files, and then running xsibatch -processing -script on each .scn file.

import os
import fnmatch
import subprocess
import sys
import getopt

XSI_BINDIR=r"C:\\Program Files\\Autodesk\\Softimage 2013 SP1\\Application\\bin"

opts, extraparams = getopt.getopt(sys.argv[1:], "d:s:", ["dir=","script="]) 

#
# Get root directory to scan for scene files
#
SCENES_DIR="C:\\Program Files\\Autodesk\\Softimage 2013 SP1\\Data\\XSI_SAMPLES\\Scenes\\OLD"
SCRIPT="test1.pys"

for o,p in opts:
  if o in ['-d','--dir']:
     SCENES_DIR = p
  elif o in ['-s','--script']:
     SCRIPT = p

#
# Generator function for finding files
#
def find_files(directory, pattern):
     for root, dirs, files in os.walk(directory):
         for basename in files:
             if fnmatch.fnmatch(basename, pattern):
                 filename = os.path.join(root, basename)
                 yield filename

#
# Open each scene file and run the specified script
#
for scn in find_files(SCENES_DIR, '*.scn'):
	sXsiBatch = "%s\\xsibatch" % XSI_BINDIR
	subprocess.call( [ sXsiBatch, '-processing', '-script', SCRIPT, '-args', '-sSceneName', scn ] )

Softimage script test.pys:
A simple test script to run with xsibatch. Note that because the function is named “main”, I don’t have to specify that on the xsibatch command line. I just have to specify the arguments.

def main( sSceneName ):
	LogMessage( sSceneName )	

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