Struct ShadowPassLane 

pub struct ShadowPassLane {
    pub pipeline: RwLock<Option<RenderPipelineId>>,
    pub camera_layout: RwLock<Option<BindGroupLayoutId>>,
    pub model_layout: RwLock<Option<BindGroupLayoutId>>,
    pub atlas_texture: RwLock<Option<TextureId>>,
    pub atlas_view: RwLock<Option<TextureViewId>>,
    pub shadow_sampler: RwLock<Option<SamplerId>>,
    pub shadow_results: RwLock<HashMap<usize, (Mat4, i32)>>,
    pub camera_ring: RwLock<Option<DynamicUniformRingBuffer>>,
    pub model_ring: RwLock<Option<DynamicUniformRingBuffer>>,
}

A rendering lane dedicated to producing shadow maps.

It renders the scene from the perspective of shadow-casting lights into a depth texture (shadow map or atlas).

Fields

pipeline: RwLock<Option<RenderPipelineId>>

The render pipeline for depth-only rendering.

camera_layout: RwLock<Option<BindGroupLayoutId>>

Layout for the shadow camera uniform.

model_layout: RwLock<Option<BindGroupLayoutId>>

Layout for the model uniform.

atlas_texture: RwLock<Option<TextureId>>

The shadow atlas texture (depth array).

atlas_view: RwLock<Option<TextureViewId>>

The view into the shadow atlas.

shadow_sampler: RwLock<Option<SamplerId>>

Comparison sampler for PCF.

shadow_results: RwLock<HashMap<usize, (Mat4, i32)>>

Stores calculated shadow matrices and atlas indices for the main pass. Mapping: Light Index -> (Shadow Matrix, Atlas Index)

camera_ring: RwLock<Option<DynamicUniformRingBuffer>>

Dynamic ring buffer for the shadow camera (light view-projection) uniforms. Uses dynamic offsets so each light can have its own camera data in the same frame.

model_ring: RwLock<Option<DynamicUniformRingBuffer>>

Dynamic ring buffer for per-mesh model uniforms.

Implementations

impl ShadowPassLane

pub fn new() -> Self

Creates a new ShadowPassLane.

Trait Implementations

impl Default for ShadowPassLane

fn default() -> Self

Returns the “default value” for a type.

impl Lane for ShadowPassLane

fn strategy_name(&self) -> &'static str

Human-readable name identifying this lane’s strategy.

fn lane_kind(&self) -> LaneKind

The kind of processing this lane performs.

fn estimate_cost(&self, ctx: &LaneContext) -> f32

Estimated computational cost of running this lane.

fn on_initialize(&self, ctx: &mut LaneContext) -> Result<(), LaneError>

Called once when the lane is registered or the underlying context resets.

fn execute(&self, ctx: &mut LaneContext) -> Result<(), LaneError>

Main execution entry point — called each frame/tick by the owning agent.

fn on_shutdown(&self, ctx: &mut LaneContext)

Called when the lane is being destroyed or the context is shutting down.

fn as_any(&self) -> &dyn Any

Downcast to a concrete type for type-specific operations.

fn as_any_mut(&mut self) -> &mut dyn Any

Downcast to a concrete type (mutable) for type-specific operations.