forked from bartvdbraak/blender
0d3cf5c8a6
This comes in handy for testing importers against 100's of files, quickly showing breakages and easier to setup then unit tests.
Example usage:
blender.bin --background --python source/tests/batch_import.py -- \
--operator="bpy.ops.import_scene.obj" \
--path="/data/testfiles/obj" \
--match="*.obj" \
--start=0 --end=50 \
--save_path="/tmp/test"
Also found my name was spelt wrong in some places :)
115 lines
4.1 KiB
Python
115 lines
4.1 KiB
Python
# This script is an example of how you can run blender from the command line (in background mode with no interface)
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# to automate tasks, in this example it creates a text object, camera and light, then renders and/or saves it.
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# This example also shows how you can parse command line options to python scripts.
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#
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# Example usage for this test.
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# blender --background --factory-startup --python $HOME/background_job.py -- --text="Hello World" --render="/tmp/hello" --save="/tmp/hello.blend"
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#
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# Notice:
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# '--factory-startup' is used to avoid the user default settings from interfearing with automated scene generation.
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# '--' causes blender to ignore all following arguments so python can use them.
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#
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# See blender --help for details.
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import bpy
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def example_function(body_text, save_path, render_path):
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scene = bpy.context.scene
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# Clear existing objects.
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scene.camera = None
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for obj in scene.objects:
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scene.objects.unlink(obj)
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txt_data = bpy.data.curves.new(name="MyText", type='FONT')
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# Text Object
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txt_ob = bpy.data.objects.new(name="MyText", object_data=txt_data)
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scene.objects.link(txt_ob) # add the data to the scene as an object
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txt_data.body = body_text # set the body text to the command line arg given
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txt_data.align = 'CENTER' # center text
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# Camera
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cam_data = bpy.data.cameras.new("MyCam") # create new camera data
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cam_ob = bpy.data.objects.new(name="MyCam", object_data=cam_data)
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scene.objects.link(cam_ob) # add the camera data to the scene (creating a new object)
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scene.camera = cam_ob # set the active camera
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cam_ob.location = 0.0, 0.0, 10.0
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# Lamp
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lamp_data = bpy.data.lamps.new("MyLamp", 'POINT')
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lamp_ob = bpy.data.objects.new(name="MyCam", object_data=lamp_data)
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scene.objects.link(lamp_ob)
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lamp_ob.location = 2.0, 2.0, 5.0
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if save_path:
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try:
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f = open(save_path, 'w')
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f.close()
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ok = True
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except:
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print("Cannot save to path %r" % save_path)
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import traceback
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traceback.print_exc()
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if ok:
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bpy.ops.wm.save_as_mainfile(filepath=save_path)
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if render_path:
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render = scene.render
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render.use_file_extension = True
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render.filepath = render_path
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bpy.ops.render.render(write_still=True)
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import sys # to get command line args
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import optparse # to parse options for us and print a nice help message
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def main():
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# get the args passed to blender after "--", all of which are ignored by blender specifically
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# so python may receive its own arguments
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argv = sys.argv
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if "--" not in argv:
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argv = [] # as if no args are passed
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else:
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argv = argv[argv.index("--") + 1:] # get all args after "--"
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# When --help or no args are given, print this help
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usage_text = "Run blender in background mode with this script:"
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usage_text += " blender --background --python " + __file__ + " -- [options]"
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parser = optparse.OptionParser(usage=usage_text)
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# Example background utility, add some text and renders or saves it (with options)
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# Possible types are: string, int, long, choice, float and complex.
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parser.add_option("-t", "--text", dest="body_text", help="This text will be used to render an image", type="string")
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parser.add_option("-s", "--save", dest="save_path", help="Save the generated file to the specified path", metavar='FILE')
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parser.add_option("-r", "--render", dest="render_path", help="Render an image to the specified path", metavar='FILE')
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options, args = parser.parse_args(argv) # In this example we wont use the args
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if not argv:
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parser.print_help()
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return
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if not options.body_text:
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print("Error: --text=\"some string\" argument not given, aborting.")
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parser.print_help()
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return
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# Run the example function
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example_function(options.body_text, options.save_path, options.render_path)
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print("batch job finished, exiting")
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if __name__ == "__main__":
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main()
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