AirAPI_Windows VS Godot

A lot of the usb reverse engineering has already been done. See https://github.com/MSmithDev/AirAPI_Windows as an example. It's currently for windows but all the hid report parsing and such is in the project and can be ported to any lang.

I was able to make PhoenixHeadTracker by using AirAPI_Windows.dll https://github.com/MSmithDev/AirAPI_Windows

It was extremely challenging, but I was able to successfully built my first fully sensor-integrated macOS app for Nreal Air using Swift and SceneKit. This app is built on top of the C++ driver that I forked last week from the Windows repo and re-wrote for macOS compatibility [new updates & fixes in latest pr].

Unfortunately I don't have an Air, but if anyone is willing to lend (or donate :) ) one, I could whip up a similar driver in a few days. Especially since I can build on previous works for windows and linux. I'd implement setting SBS mode, accessing all kinds of sensors, etc., which is not supported in those two drivers AFAIK. Once I've done that, people would be free to copy-paste the SBS-enabling USB payloads.

Here is the PR introducing macOS support for Nreal air: https://github.com/MSmithDev/AirAPI_Windows/pull/5

I managed to RE most of the things in the HID interface for controls (with number 4) on my own reading raw data packages. For the IMU data I've read the source code from the pre-existing efforts for Windows here. So I got the payload from there to receive data from the regarding interface (with number 3) and I could continue RE.

I've recently bought an NReal Light on the promise that it has both stereo camera and IMU, which would be great for some of my upcoming projects.I've spent the better part of the last two days "looking" at the NReal SDK and firmware (to create an opensource driver for them in ), and I have to conclude:The Light does not transmit IMU information through USB, and there's no way to get it without modifying the firmware itself. Even then, I'm starting to get skeptical if there's even a working IMU on the PCB itself. It's been years and NReal never got around to add it. Of course the NReal Air does stream IMU info over the HID protocol, and there already exists an opensource driver, but at that point it's equivalent to the Rokid Air. They did add support for the magnetometer (for some reason that's beyond me), so there is some hope.

It is, reportedly, done: https://github.com/MSmithDev/AirAPI_Windows

MSmithDev/AirAPI_Windows (github.com)

Instead, I was recommended Godot by a fellow developer. It is an easy-to-pickup and beginner-friendly open-source engine, which I will use to develop the Tetris game.

Here's an example file tree from a part of the Godot game engine source code.

Godot [1] is a very nice game engine. There's a game on Itch.io that teaches the scripting language it uses [2], and a ton of great tutorials on YouTube for beginners and experts alike.

[1]: https://godotengine.org/

The Bitcoin and Mastadon links don't seem to be working! (wiki not found)

Would love to see this for Godot (https://github.com/godotengine/godot). Maybe Maplibre too (https://github.com/maplibre/maplibre-native)!

Godot Engine is a free and open-source game engine. The story started as an in-house engine of an Argentinian studio in 2007, and since 2014, it's been a community-driven project with a lot of contributors.