# Vulkan rFactor2 HUD
This project is an attempt to render custom HUD elements for rFactor2 by being a Vulkan layer.

# Current state
I just started doing it. That means it isn't very usable right now. I'm working on a radar right now as the first element.

# How to enable
* Build this repository `cargo build --release`
* Change the path where the `libvk_layer_rs.so` is located (`library_path` parameter in the rFactorOverlay.json file)
* Put the rFactorOverlay.json into a layer directory ([layer directories](https://vulkan.lunarg.com/doc/view/1.3.216.0/mac/loader_and_layer_interface.html#user-content-linux-layer-discovery))
* Add `RFACTOR_HUD=1` to steam launch command (example: `RFACTOR_HUD=1 %command%`)

# Resources

## Vulkan Layer
* [Sample Layer](https://github.com/baldurk/sample_layer)
* [Brief guide to Vulkan layers (Renderdoc)](https://renderdoc.org/vulkan-layer-guide.html)
* [Mangohud](https://github.com/flightlessmango/MangoHud)
* [Lunarg Guide](https://vulkan.lunarg.com/doc/view/1.3.216.0/mac/loader_and_layer_interface.html#user-content-layer-manifest-file-format)

## rFactor2 Shared Memory
* [rFactor 2 Modding Resources](https://www.studio-397.com/modding-resources/)
* [rF2SharedMemoryMapPlugin](https://github.com/TheIronWolfModding/rF2SharedMemoryMapPlugin)
* [rF2SharedMemoryMapPlugin_Wine](https://github.com/schlegp/rF2SharedMemoryMapPlugin_Wine)
* [CrewChief](https://gitlab.com/mr_belowski/CrewChiefV4/-/tree/master/CrewChiefV4)
* [OpenSimHud](https://github.com/schlegp/OpenSimHud)