I just wanted to provide a link here in case anyone is interested. This is a library intended primarily for 3d game development in MonoGame:
https://github.com/davepruitt/phddp_mg3d
For the purposes of full transparency, this library was primarily developed using an AI coding agent with periodic prompting, review, and direction by me.
It is still brand new, so it’s not fully-featured yet, but it’s a nice start. It contains tools for scenes/entities, cameras, lighting, basic collisions, 3d models/meshes, and more!
Hopefully others can find it useful. Community contributions are also welcome.