Struct EvalCtx 

pub struct EvalCtx<'a> {
    pub tile: TileId,
    pub canvas: CanvasInfo,
    pub assets: &'a dyn AssetLoader,
    pub params: &'a ParamValues,
    pub rng_seed: u64,
}

Read-only environment a node sees during eval.

Fields

tile: TileId

canvas: CanvasInfo

assets: &'a dyn AssetLoader

params: &'a ParamValues

rng_seed: u64

Deterministic root seed for this render. World-anchored nodes hash this with world coordinates to produce per-feature seeds.