I will have to try this out, I would like something like this for my own 3D platformer or FPS that I'm working on in godot.
I would encourage you to release it as a generic 3D level editor.
I will download it and try it out, but mainly am curious about how geometry works--it appears that it has predefined primitives that you can select (the video goes by fast); can you rotate them or are they fixed? can you extend the primitives somehow?
I've got some good news! It already is a generic 3D level editor. It comes with some assets I made, but those are mainly for demonstration purposes. You are meant to replace the files in the assets folder with whatever you need for your game.
The shapes can be rotated on yaw and pitch (X and Y). Otherwise, you can add or modify the shapes using your preferred 3D modelling tool; they are all just .obj files in the assets folder. There are some more details in the instructions.html file.
