API for 3D windows and window elements

Since Simula is in VR, it would be cool for windows to have some kind of API allowing them to have 3D components and whatnot.

Here are a few examples:

• Buttons in apps could pop out of the screen and be pressed for more interactive input
• 3D model viewer apps could let you see models in 3D
• UI could have depth
  • selected tab in a browser could be in front and non selected ones behind

Implementation

Apps would communicate with Simula process and be able to use commands to display models and textures in certain locations, as well as access input on those textures and models

Bear in mind, I'm an absolute idiot who just came up with this idea and barely knows anything about how Simula works, other than that it uses Godot. But since Simula uses this popular 3D engine, I'm sure there'd be a way to let apps render things in 3D.

Why

This would add a whole new layer of potential to Simula, and make apps feel more like a natural part of it.

The issue names no files, tests, or entry points. Start by studying how apps communicate with the Simula process and how Godot renders windows, models, and textures. Done would require an agreed API for placing 3D content in windows and receiving input from that content.