usc should be able to generate images.

[danni.coy]

If I could use usc or something similiar to generate thumbnails of node and mesh files I could build plugins for the file system managers we use to display unigine assets as thumbnails which helps a lot when you have a very large asset library.

[binstream]

You can use ImageDDS tool for image thumbnails.

[danni.coy]

I want thumbnails of at least meshes and preferably node files. Thumbnailers for textures I already have (for linux at least).

[frustum]

It's better to use engine with lighting/shadowing for generate thumnailers. WidgetSpriteNode widget can be utilized for that.