Struct RenderContext 

pub struct RenderContext {
    pub device: Device,
    pub queue: Queue,
    /* private fields */
}

Owns the wgpu device and queue used by the render pipeline.

Share via Arc<RenderContext> when multiple components (graph, sink, etc.) need access to the same GPU device.

Fields

device: Device

queue: Queue

Implementations

impl RenderContext

pub fn new(device: Device, queue: Queue) -> Self

Wrap an existing wgpu device (e.g. shared with the window renderer).

pub async fn init() -> Result<Self, RenderError>

Initialise wgpu using the default (best available) backend.

Backend priority: Metal → Vulkan → DX12 → WebGPU → OpenGL.

Errors

Returns RenderError::DeviceCreation if no suitable adapter is found or the device request fails.

pub fn init_blocking() -> Result<Self, RenderError>

Blocking wrapper over init for synchronous callers.

The preview runner and the export path are synchronous, so the block-on executor is kept here in the GPU crate; callers stay executor-agnostic.

Errors

Returns RenderError::DeviceCreation if no suitable adapter is found or the device request fails.

pub async fn init_with_backend(backends: Backends) -> Result<Self, RenderError>

Initialise wgpu with an explicit backend set.

Useful in CI where only wgpu::Backends::GL may be available.

Errors

Returns RenderError::DeviceCreation if no suitable adapter is found or the device request fails.