rust-webvr-api 0.17.0

Safe rust API that provides a way to interact with Virtual Reality headsets and integration with vendor specific SDKs like OpenVR and Oculus. The API is inspired on the easy to use WebVR API but adapted to Rust design patterns
Documentation 
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/// Each VR service may have some code which needs to run on the main thread,
/// for example window creation on MacOS is only supported on the main thread.
/// Implementations of this trait will usually be neither `Sync` nor `Send`.
pub trait VRMainThreadHeartbeat {
    /// Run the heartbeat on the main thread.
    fn heartbeat(&mut self);

    /// Is the heartbeat expecting to be called every frame?
    fn heart_racing(&self) -> bool;
}