Show thumbnails for 3D formats like GLTF and FBX, similar to space thumbnails on Windows. It’s easy to implement by leveraging assimp and render OpenGL texture to QImage. It would help game developers/3D artists to locate 3D model assets.
Yes, that would be nice. We already have thumbnails for Blender 3d models. Having thumbnails for more 3d formats would be desirable.
So, I don’t know if this will be a workable solution or not, as I don’t have any GLTF or FBX files to test with, but depending on how recent your version of KIO is, there may be a way to get thumbnails to generate.
I think starting from version 6.6.0 of KIO (but perhaps the more recent the better), there was an update to KIO Thumbnailer Support (also see this associated merge request), which should mean that you can get thumbnails if there’s a thumbnailer that supports the relevant format.
As noted I don’t have any GLTF or FBX files to test with, but a bit of searching suggests that there’s an application called F3D which, based on the files in the archive for Linux, includes a number of thumbnailers (different plugins apparently).
Looking at the mime types supported by the thumbnailers, I can see model/gltf-binary, model/gltf+json and application/vnd.fbx in the listing.
Not knowing which distro you’re using, you may want to check Repology to see if you can install it on your distro.
As for the KIO functionality with thumbnailers in general, I can confirm that it has worked for me, where I uninstalled ffmpegthumbs, which provides a plugin specifically for Dolphin, and am now using ffmpegthumbnailer, which provides a thumbnailer file (I can customize to my liking).