rendering
Rendering backend contracts and helpers for drawing Pax scene content.
Structs
AlphaMaskPaint
One vector paint contributing alpha to a mask, in local path coordinates. Color channels do not affect coverage; fill alpha and opacity are multiplied.
Properties
path
Type: BezPath
transform
Type: Affine
fill
Type: Paint
opacity
Type: f64
paint_bounds
Type: Rect
Complete local geometry bounds before stroke expansion or trimming.
composition
Type: Option<(u32, f32)>
Primitive boundary: compose its paints before applying source-relative opacity.
OpacityScope
One authored opacity boundary, ordered from the outermost ancestor to the painted node. Native surfaces can present independently while a canvas backend composes each scope.
Properties
node_id
Type: u32
opacity
Type: f32
ReplayCanvasLayerUpdate
Replay invalidation for one logical canvas layer.
Properties
layer
Type: usize
regions
Type: Option<Vec<Rect>>
Canvas-content regions requiring replay. The runtime selects nodes from its
shared scene geometry; None requests full-layer dirtification.
Enums
Layer
Render layer selected for a primitive or native surface.
Variants
Native
Platform-native element layer.
NativeNonOccluding
Platform-native layer that does not participate in occlusion.
Canvas
GPU/canvas-rendered layer.
DontCare
Runtime can choose the appropriate layer.
Traits
RenderContext
The drawing contract shared by Pax runtime backends.
Functions
bez_path_to_svg_path_data
pub fn bez_path_to_svg_path_data(path: &BezPath) -> StringConvert a kurbo BezPath to a SVG-friendly drawing string