Sequencer scripting (4.22): use on_finished_callback to call python function with arguments?

Development Pipeline & Plugins Editor Scripting
1

I noticed that 4.22 has a callback for the movie render which seems useful but I don’t really know how to use it. I would like to have the callback call a function with arguments so I could make a batch renderer. Something like this:
batch_render(sequence_index):
sequences = unreal.EditorAssetLibrary.list_assets("/Game/Cinematics/Sequences/
render_sequence_to_movie(sequences[sequence_index])

def on_render_movie_finished(success, sequence_index):
sequence_index += 1
batch_render(sequence_index)

This doesn’t work though because on_finished_callback.bind_callable(on_render_movie_finished) only takes a single argument. Is there another way to accomplish this?

Edit: for now I made a global variable with the sequence index, kind of ugly but works I guess…

2

I want to shoot different sequences in batches with commands. Now I can get sequence in the scene, but I can’t locate capture in sequence. Can you tell me what commands to use?

3

Are you referring to the function included in the SequencerTools plugin? I’ve been trying to get the BP function RenderMovie to work bu no luck so far… It requires a UMovieSceneCapture object but I can’t find a way to get it in BP… I’ve gone to the cpp department to get this batch rendering thing solved…

Does your python code work for at least rendering a movie out? Do you just pass the level sequence actor to it?