Struct SpotLight 

pub struct SpotLight {
    pub position: Vec3,
    pub direction: Vec3,
    pub color: Vec3,
    pub intensity: f32,
    pub inner_angle: f32,
    pub outer_angle: f32,
}

Spot light — cone-shaped.

Fields

position: Vec3

direction: Vec3

Unit direction the spot points toward.

color: Vec3

intensity: f32

inner_angle: f32

Inner cone half-angle (full bright region), in radians.

outer_angle: f32

Outer cone half-angle (falloff to zero), in radians.

Implementations

impl SpotLight

pub fn new( position: Vec3, direction: Vec3, color: Vec3, intensity: f32, inner_angle: f32, outer_angle: f32, ) -> Self

pub fn angular_attenuation(&self, surface_pos: Vec3) -> f32

Angular attenuation — smooth falloff from inner to outer cone.

pub fn radial_attenuation(&self, surface_pos: Vec3) -> f32

Radial attenuation (same as point light).

pub fn irradiance_at(&self, surface_pos: Vec3) -> Vec3

Combined irradiance at surface position.

pub fn direction_to(&self, surface_pos: Vec3) -> Vec3

Direction from surface toward the light source.

Trait Implementations

impl Clone for SpotLight

fn clone(&self) -> SpotLight

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SpotLight

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

Formats the value using the given formatter.