Enum PaintItem 

pub enum PaintItem {
    QuadRun(usize),
    IconRun(usize),
    Text(usize),
    Image(usize),
    AppTexture(usize),
    Vector(usize),
    Scene3D(usize),
    BackdropSnapshot,
}

Sequencing entry for the recorded paint stream.

• QuadRun(idx) — a contiguous instance run (indexed into runs).
• IconRun(idx) — a vector icon run (backend-owned storage, indexed by the wgpu icon painter; other backends may keep using text fallback and never emit this item).
• Text(idx) — a glyph layer (indexed into the backend’s TextLayer vector).
• BackdropSnapshot — a pass boundary. The backend ends the current render pass, copies the current target into its managed snapshot texture, and begins a new pass with LoadOp::Load so subsequent quads can sample the snapshot via the backdrop bind group. At most one of these is emitted per frame, inserted by [crate::runtime::RunnerCore::prepare_paint] immediately before the first quad bound to a samples_backdrop shader.

Variants

QuadRun(usize)

IconRun(usize)

Text(usize)

Image(usize)

One raster image draw. Indexes into the backend’s ImagePaint-equivalent storage. Produced by [crate::runtime::TextRecorder::record_image] from a crate::ir::DrawOp::Image.

AppTexture(usize)

One app-owned-texture composite. Indexes into the backend’s SurfacePaint-equivalent storage. Produced by the backend’s surface recorder from a crate::ir::DrawOp::AppTexture.

Vector(usize)

One app-supplied vector draw. Indexes into the backend’s vector storage; explicit render mode determines whether that storage is tessellated geometry or an MSDF atlas entry. Produced from a crate::ir::DrawOp::Vector.

Scene3D(usize)

One composited 3D scene. Indexes into the backend’s scene-renderer storage. Unlike the other content items this is a two-phase draw: the backend renders the scene offscreen (its own depth + MSAA) in a pre-pass, then this item composites the resolved texture into the main pass like an Self::AppTexture. Produced by the backend’s scene recorder from a crate::ir::DrawOp::Scene3D. Backends without a scene renderer leave the default no-op recorder, so no item is emitted and the scene paints nothing.

BackdropSnapshot

Trait Implementations

impl Clone for PaintItem

fn clone(&self) -> PaintItem

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for PaintItem