How would this work with PNG image sequences? There are multiple files created (one PNG per frame + a WAV file).

Also, if this is implemented, this should most likely be done on the editor side (make it specify the expected CLI arguments directly). This way, you can get the old behavior back by running the engine with specific CLI arguments.

@Calinou In the case of image sequences I suggest the format: filename_<Take>_<Frame>.png

Also, if this is implemented, this should most likely be done on the editor side (make it specify the expected CLI arguments directly). This way, you can get the old behavior back by running the engine with specific CLI arguments.

I can see this happening in a bunch of ways:

1. We can make the number be an editor setting (saved in user settings) which is what it seems they do in Unity anyway.
   So the new behaviour becomes: every time you finish recording, the Take number is incremented, but you can also manually override the Take number to make it restore the old behaviour.

2. Alternatively, we can also have an additional editor setting called "Increment filename instead of Overwrite" that is on by default, which is simpler.

3. Ideally we would do exactly what happens in the shared pic -- let the player choose the string format of the name, as that provides the most flexibility and let's them do whatever they want. e.g. filename_<Take>_<Frame>.png to increment or filename_<Frame>.png to overrwrite.
   And this allows for additional magic strings to be injected later, like <ProjectName>_video_<Take>.avi

Let me know what you think, I can update the OP with the most reasonable change.

1. We can make the number be an editor setting (saved in user settings) which is what it seems they do in Unity anyway.
   So the new behaviour becomes: every time you finish recording, the Take number is incremented, but you can also manually override the Take number to make it restore the old behaviour.

We should avoid making changes to editor settings without actual user interaction. A temporary cache file should be used for that instead.

2. Alternatively, we can also have an additional editor setting called "Increment filename instead of Overwrite" that is on by default, which is simpler.

Sounds good to me.

3. Ideally we would do exactly what happens in the shared pic -- let the player choose the string format of the name, as that provides the most flexibility and let's them do whatever they want. e.g. filename_<Take>_<Frame>.png to increment or filename_<Frame>.png to overrwrite.
   And this allows for additional magic strings to be injected later, like <ProjectName>_video_<Take>.avi

We strive to simplify editor settings rather than complexify them, so we should refrain from adding more editor settings than what's strictly needed.

@Calinou In the case of image sequences I suggest the format: filename_<Take>_<Frame>.png

I'm exporting png sequences with the movie maker right now and would love to use placeholders in the Move File field to dynamically create folders to put the pngs in (while avoiding overwrites). Having frames each live in a directory corresponding to the sequence they're part of helps me avoid error later. e.g. when importing png sequences into after effects i want to avoid hunting through multiple 'frame zero's in the same folder, instead i want to just open the relevant sequence directory and know that all frames in there make up the sequence i want. Foolproof!

As Movie File I'd like to be able to enter something like
C:/Users/MyPath/movie_writer/mygame_<Timestamp>/mygame_<Frame>.png