File closing time takes so long.

Development Getting Started & Setup
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1

Hi,

When I close my twinmotion file, it takes so long that it is over 50 minutes.

(I'm using twinmotion 2023 latest version now.)

Absolutely, I saved the file before closing, so the time is just for the file close process.

With similar environments, on 2022 twinmotion, it just takes under 10 minutes.

My file size is 4.2G.

My PC spec is as follows.

(window 11, ram 128G, rtx 4090)

Can I know what's happening and how can I fix it?

Is anybody knows this problem?

Thank you

2

Was your file built from scratch in 2023?

I find that files built in older versions and converted to 2023.1.1 tend to have performance problems including file close times.

Of course, 4.2Gb is huge too - any way you could optimize it by re-importing cleaner geometry?

You could also try starting a new file and bringing in your old file with Merge.

3

It may have something to do with the new file format that changed in 2023. Theoretically it involves reducing file size by optimizing duplicate geometry which should speed up file save times. In your case it seems to have done the opposite.

Whatever the case, somehow you need to reduce that 4.2Gb file size - good luck!

Here are some of the 2023 release notes;

New File Format

The new TM file format has a positive impact on file size, scene save and load speed, and global performance.

The new file format involved several modifications:

  • Deduplicating meshes and textures: Twinmotion can now identify identical meshes and textures in a project and avoids duplicating them in the saved file.
  • Results:
    • Speed: we only save changes made on modified meshes or textures. Saving an existing scene is incredibly more effective and faster than before.
    • File sizes are considerably reduced for files containing several copies of the same asset (example: Quixel or Sketchfab library items).
  • Better multithreading: With the new file format, scenes are saved with a multithreaded compression on multi-core hardware.
  • Result: Overall, the saving sequence is faster compared to previous releases.

4

I made it on 2023.1.1 from the start...

If file size could affect on the close time, do you know why older version of twinmotion don't have that kind of problem?

Anyway, I will try optimize by cleaning geometry first.

Thank yo so much for your answer!

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