fix: pyright errors in blender_renderer.py

[Computerdores]

Summary

Progress towards #1061 and #1232 by fixing the errors in blender_renderer.py.

NOTE: I can confirm that blender thumbnails still work, however, I don't have a .blend file without a thumbnail (and couldn't figure out how to create one) so I wasn't able to test that.

Tasks Completed

• Platforms Tested:
  • Windows x86
  • Windows ARM
  • macOS x86
  • macOS ARM
  • Linux x86
  • Linux ARM
• Tested For:
  • Basic functionality
  • PyInstaller executable

[050011-code]

This does appear to be working with files that don't have a thumbnail.

The terminal also prints out the correct output:
completePorscheGT3RScompressed.blend Doesn't have an embedded thumbnail.

[Computerdores]

This does appear to be working with files that don't have a thumbnail.

The terminal also prints out the correct output: completePorscheGT3RScompressed.blend Doesn't have an embedded thumbnail.

Thank you for testing that! Are you able to share the .blend file without the thumbnail so I can add it to my testing lib?

[050011-code]

You can create your own!

You can click on "File -> Save as" and then tick "Compress" on the pull out side menu, removing the thumbnail on the file you will save.

[CyanVoxel]

Thank you for the fixes!