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author | Campbell Barton <ideasman42@gmail.com> | 2009-01-16 01:16:29 +0300 |
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committer | Campbell Barton <ideasman42@gmail.com> | 2009-01-16 01:16:29 +0300 |
commit | ce3dca24d1948874e9c2aab69ecc37009582e602 (patch) | |
tree | a698b0ca99316cd8d33602bd10c1d74ee9fc15d5 /release/scripts/scripttemplate_background_job.py | |
parent | c0ecbfce0ec729164d93bc01d2ac8a485608770c (diff) |
have had few requests to use blender for performing background tasks
- visualizing data, rendering scenes automatically and character rendering on a server.
This example script shows how you can run blender in background mode, parse arguments from the command line to generate a simple scene and render/save it.
Diffstat (limited to 'release/scripts/scripttemplate_background_job.py')
-rw-r--r-- | release/scripts/scripttemplate_background_job.py | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/release/scripts/scripttemplate_background_job.py b/release/scripts/scripttemplate_background_job.py new file mode 100644 index 00000000000..713acbb56a8 --- /dev/null +++ b/release/scripts/scripttemplate_background_job.py @@ -0,0 +1,123 @@ +#!BPY +""" +Name: 'Background Job Example' +Blender: 248 +Group: 'ScriptTemplate' +Tooltip: 'Script template for automating tasks from the command line with blender' +""" + +from Blender import Window +import bpy + +script_data = \ +'''# This script is an example of how you can run blender from the command line (in background mode with no interface) +# to automate tasks, in this example it creates a text object, camera and light, then renders and/or saves it. +# This example also shows how you can parse command line options to python scripts. +# +# Example usage for this test. +# blender -b -P $HOME/.blender/scripts/scripttemplate_background_job.py -- --text="Hello World" --render="/tmp/hello" --save="/tmp/hello.blend" +# +# Notice all python args are after the '--' argument. + +import Blender +import bpy + +def example_function(body_text, save_path, render_path): + + sce= bpy.data.scenes.active + + txt_data= bpy.data.curves.new('MyText', 'Text3d') + + # Text Object + txt_ob = sce.objects.new(txt_data) # add the data to the scene as an object + txt_data.setText(body_text) # set the body text to the command line arg given + txt_data.setAlignment(Blender.Text3d.MIDDLE)# center text + + # Camera + cam_data= bpy.data.cameras.new('MyCam') # create new camera data + cam_ob= sce.objects.new(cam_data) # add the camera data to the scene (creating a new object) + sce.objects.camera= cam_ob # set the active camera + cam_ob.loc= 0,0,10 + + # Lamp + lamp_data= bpy.data.lamps.new('MyLamp') + lamp_ob= sce.objects.new(lamp_data) + lamp_ob.loc= 2,2,5 + + if save_path: + try: + f= open(save_path, 'w') + f.close() + ok= True + except: + print 'Cannot save to path "%s"' % save_path + ok= False + + if ok: + Blender.Save(save_path, 1) + + if render_path: + render= sce.render + render.extensions= True + render.renderPath = render_path + render.sFrame= 1 + render.eFrame= 1 + render.renderAnim() + + + +import sys # to get command line args +import optparse # to parse options for us and print a nice help message + +script_name= 'background_job.py' + +def main(): + + # get the args passed to blender after "--", all of which are ignored by blender specifically + # so python may receive its own arguments + argv= sys.argv + + if '--' not in argv: + argv = [] # as if no args are passed + else: + argv = argv[argv.index('--')+1: ] # get all args after "--" + + # When --help or no args are given, print this help + usage_text = 'Run blender in background mode with this script:\n' + usage_text += ' blender -b -P ' + script_name + ' -- [options]' + + parser = optparse.OptionParser(usage = usage_text) + + + # Example background utility, add some text and renders or saves it (with options) + parser.add_option('-t', '--text', dest='body_text', help='This text will be used to render an image') + + parser.add_option('-s', '--save', dest='save_path', help='Save the generated file to the specified path', metavar='FILE') + parser.add_option('-r', '--render', dest='render_path', help='Render an image to the specified path', metavar='FILE') + + options, args = parser.parse_args(argv) # In this example we wont use the args + + if not argv: + parser.print_help() + return + + if not hasattr(options, 'body_text'): + print 'Error: --text="some string" argument not given, aborting.\n' + parser.print_help() + return + + # Run the example function + example_function(options.body_text, options.save_path, options.render_path) + + print 'batch job finished, exiting' + + +if __name__ == '__main__': + main() +''' + +new_text = bpy.data.texts.new('background_job.py') +new_text.write(script_data) +bpy.data.texts.active = new_text +Window.RedrawAll() + |