Struct MipmapGenerator 

pub struct MipmapGenerator { /* private fields */ }

GPU-side mipmap generator: a shared render pipeline (per texture format) that downsamples one mip level into the next via a fullscreen-triangle blit, plus the bind group layouts/samplers it needs.

Built once as a LazyResource and reused by every GPUTexture upload that requests mips.

Implementations

impl MipmapGenerator

pub fn generate_mips( &self, device: &Device, queue: &Queue, texture: &Texture, format: TextureFormat, mip_count: u32, layer_count: u32, )

Downsamples texture (already holding valid data at mip level 0 of every layer) into its remaining mip_count - 1 levels, entirely on the GPU. layer_count is 1 for a plain 2D texture, N for a texture array, or 6 for a cubemap — each array layer/face is downsampled independently via its own single-layer 2D view.

Trait Implementations

impl LazyResource<WGPUBackend> for MipmapGenerator

type Deps<'a> = ()

Other resources this singleton needs before it can be built. Use () if none are needed.

fn construct<'a>(backend: &WGPUBackend, _deps: &()) -> Option<Self>

Attempt to construct this singleton. Return None if construction can’t succeed yet for a reason not already covered by Deps readiness (e.g. a transient condition) — the plugin will retry next tick.