Enum LightKind 

#[non_exhaustive]
pub enum LightKind {
    Directional {
        direction: [f32; 3],
    },
    Point {
        position: [f32; 3],
        range: f32,
    },
    Spot {
        position: [f32; 3],
        direction: [f32; 3],
        range: f32,
        inner_angle: f32,
        outer_angle: f32,
    },
}

Light source type.

Directional emits parallel rays from a fixed direction (infinite distance). Point emits rays from a position with distance-based falloff. Spot emits a cone of light with inner (full-intensity) and outer (cutoff) angles.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Directional

Infinitely distant light with parallel rays (e.g. the sun).

Fields

direction: [f32; 3]

World-space direction the light travels toward (not the source direction).

Point

Omnidirectional point light with distance falloff.

Fields

position: [f32; 3]

World-space position of the light source.

range: f32

Maximum range (world units) beyond which the light contributes nothing.

Spot

Cone-shaped spotlight.

Fields

position: [f32; 3]

World-space position of the light source.

direction: [f32; 3]

World-space direction the cone points toward.

range: f32

Maximum range (world units).

inner_angle: f32

Inner cone half-angle (radians) — full intensity within this cone.

outer_angle: f32

Outer cone half-angle (radians) — light fades to zero at this angle.

Trait Implementations

impl Clone for LightKind

fn clone(&self) -> LightKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LightKind

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

Formats the value using the given formatter.

impl Copy for LightKind