Module cache 

Engine-side caches for GPU resources derived from a scene.

Each cache turns a recurring, expensive-to-derive scene input into a bounded, reusable GPU resource, and is maintained at the frame boundary rather than mid-frame so handles handed out during encoding stay valid for that frame. retained is the one whose input is a rendered body rather than a decoded resource: a PushRetained bracket’s pixels, kept so a later frame’s DrawRetained composites them instead of painting the body again.

Re-exports

pub use gradients::BYTES_PER_TEXEL;

pub use gradients::CachedRamp;

pub use gradients::GradientCache;

pub use gradients::GradientTextureLayout;

pub use gradients::LutUpload;

pub use images::AtlasBudget;

pub use images::AtlasRegion;

pub use images::ImageResidency;

pub use images::ImageSkip;

pub use images::ImageUpload;

pub use images::MAX_UNSEEN_FRAMES;

pub use images::ResidentImage;

pub use retained::RetainedBudget;

pub use retained::RetainedDecision;

pub use retained::RetainedEntry;

pub use retained::RetainedPages;

pub use retained::RetainedPlan;

pub use retained::RetainedRefusal;

Modules

gradients

Gradient colour-ramp (LUT) cache.

images

Image residency: which decoded images own atlas space, and for how long.

retained

Retained pages: bodies the renderer rasterized once and keeps across frames, so a later frame can composite them instead of painting them again.