bevy_webxr Fork

An example of using the webxr features is available at webxr-testing

This is a work-in-progress branch of bevy to add openxr support. It is based mostly off of zarik5's work. The goal is to support both Oculus and PCVR.

If running on Oculus, download oculus sdk and move corresponding library into libs/. Be careful! The directory structure of the oculus sdk has an extra folder. Arrange the library exactly like this:

libs\arm64-v8a\libopenxr_loader.so

You also will need android SDK 26 and android NDK set up, with $ANDROID_NDK_ROOT and $ANDROID_SDK_ROOT environemnt variables set correctly. Also install the latest cargo-apk with cargo install cargo-apk -f

If you don't already have the 64 bit ARM toolchain installed, you need to install it using rustup target add aarch64-linux-android

Build, install, and run the apk using cargo apk run --example vr_cubes_android --features bevy_openxr

Run the example with cargo run --example vr_cubes --release

This branch has 0.8-dev as of ~7/22/2022 rebased in.

• Get Oculus working

  • currently have shadows disabled -- one of the shaders appears to cause a segfault in the oculus shader compiler

• Add back in motion controller/input support (it was ripped out in an effort to get the example to not panic)

• Prevent window from opening (shows as Not Responding on Windows OS).

• Open Question: ability to have winit windows co-exist with openxr runner

  • this could be useful for things like configuration UIs in pancake land when doing PCVR

• MSAA

  • Oculus claims to support 4x

• bevy_ui

Bevy is a refreshingly simple data-driven game engine built in Rust. It is free and open-source forever!

Bevy is still in the very early stages of development. APIs can and will change (now is the time to make suggestions!). Important features are missing. Documentation is sparse. Please don't build any serious projects in Bevy unless you are prepared to be broken by API changes constantly.

MSRV: Bevy relies heavily on improvements in the Rust language and compiler. As a result, the Minimum Supported Rust Version (MSRV) is "the latest stable release" of Rust.

• Capable: Offer a complete 2D and 3D feature set
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• The Bevy Book: Bevy's official documentation. The best place to start learning Bevy.
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Before contributing or participating in discussions with the community, you should familiarize yourself with our Code of Conduct.

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If you'd like to help build Bevy, check out the Contributor's Guide. For simple problems, feel free to open an issue or PR and tackle it yourself!

For more complex architecture decisions and experimental mad science, please open an RFC (Request For Comments) so we can brainstorm together effectively!

We recommend checking out The Bevy Book for a full tutorial.

Follow the Setup guide to ensure your development environment is set up correctly. Once set up, you can quickly try out the examples by cloning this repo and running the following commands:

# Switch to the correct version (latest release, default is main development branch)
git checkout latest
# Runs the "breakout" example
cargo run --example breakout

To draw a window with standard functionality enabled, use:

use bevy::prelude::*;

fn main(){
  App::new()
    .add_plugins(DefaultPlugins)
    .run();
}

Bevy can be built just fine using default configuration on stable Rust. However for really fast iterative compiles, you should enable the "fast compiles" setup by following the instructions here.

Bevy is only possible because of the hard work put into these foundational technologies:

• wgpu: modern / low-level / cross-platform graphics library inspired by Vulkan
• glam-rs: a simple and fast 3D math library for games and graphics
• winit: cross-platform window creation and management in Rust

This list outlines the different cargo features supported by Bevy. These allow you to customize the Bevy feature set for your use-case.

Plugins are very welcome to extend Bevy's features. Guidelines are available to help integration and usage.

Additionally, we would like to thank the Amethyst, macroquad, coffee, ggez, Fyrox, and Piston projects for providing solid examples of game engine development in Rust. If you are looking for a Rust game engine, it is worth considering all of your options. Each engine has different design goals, and some will likely resonate with you more than others.

Bevy is free, open source and permissively licensed! Except where noted (below and/or in individual files), all code in this repository is dual-licensed under either:

• MIT License (LICENSE-MIT or http://opensource.org/licenses/MIT)
• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)

at your option. This means you can select the license you prefer! This dual-licensing approach is the de-facto standard in the Rust ecosystem and there are very good reasons to include both.

Some of the engine's code carries additional copyright notices and license terms due to their external origins. These are generally BSD-like, but exact details vary by crate: If the README of a crate contains a 'License' header (or similar), the additional copyright notices and license terms applicable to that crate will be listed. The above licensing requirement still applies to contributions to those crates, and sections of those crates will carry those license terms. The license field of each crate will also reflect this. For example, bevy_mikktspace has code under the Zlib license (as well as a copyright notice when choosing the MIT license).

The assets included in this repository (for our examples) typically fall under different open licenses. These will not be included in your game (unless copied in by you), and they are not distributed in the published bevy crates. See CREDITS.md for the details of the licenses of those files.

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.