Struct ShadowWedge 

pub struct ShadowWedge {
    pub quad: [Vec2; 4],
    pub weight: f32,
    pub tap: u32,
}

One triangle-fan quad of a light’s shadow, in world space, drawn as [near_a, near_b, far_b, far_a].

Fields

quad: [Vec2; 4]

Corners: two on the occluder edge, two extruded away from the light.

weight: f32

This tap’s share of the shadow: taps sum to 1.0.

tap: u32

Which tap this quad belongs to, 0..taps-1 in the order shadow_wedges emitted them.

Implementations

impl ShadowWedge

pub fn mask_weights(&self) -> [f32; 4]

The quad’s contribution to the shadow mask, one entry per mask channel: weight in Self::tap’s channel and zero in the others.

Overlapping quads of one tap max-blend into their shared channel, so a solid occluder’s edges union per tap (a point is shadowed when the ray to the light crosses any edge), and the light shader sums the channels, which is the taps’ average.

Trait Implementations

impl Clone for ShadowWedge

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ShadowWedge

impl Debug for ShadowWedge

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for ShadowWedge

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ShadowWedge