Struct InfluenceCtx 

pub struct InfluenceCtx<'a> {
    pub downstream: u32,
    pub brush: Option<InkReach>,
    pub assets: &'a dyn AssetLoader,
}

What a node needs in order to say how far outside the canvas its input geometry can still matter — see Node::influence_pad.

Fields

downstream: u32

Reach already claimed by everything downstream of this node.

brush: Option<InkReach>

The brush feeding this node, if one does — see Node::ink_reach.

assets: &'a dyn AssetLoader

Implementations

impl InfluenceCtx<'_>

pub const UNBOUNDED: u32 = u32::MAX

The reach is not bounded by anything this node knows, so nothing upstream of it may be dropped.

pub fn plus(&self, extra: f64) -> u32

downstream plus extra px, saturating into Self::UNBOUNDED rather than wrapping.

pub fn plus_bound(&self, bound: Option<f64>) -> u32

downstream plus a bound that may not exist — an @node port or an unbounded $param has no static ceiling, and a field that moves geometry outward without one cannot be culled against.