Enum LightType 

pub enum LightType {
    Directional {
        direction: [f32; 3],
        color: [f32; 3],
        intensity: f32,
        cast_shadows: bool,
    },
    Point {
        position: [f32; 3],
        color: [f32; 3],
        intensity: f32,
        range: f32,
        cast_shadows: bool,
    },
    Spot {
        position: [f32; 3],
        direction: [f32; 3],
        color: [f32; 3],
        intensity: f32,
        range: f32,
        inner_angle: f32,
        outer_angle: f32,
        cast_shadows: bool,
    },
    Area {
        position: [f32; 3],
        normal: [f32; 3],
        up: [f32; 3],
        width: f32,
        height: f32,
        color: [f32; 3],
        intensity: f32,
    },
    Ambient {
        color: [f32; 3],
        intensity: f32,
    },
}

Types of lights supported by the deferred lighting pass.

Variants

Directional

Directional light (sun). Direction + color + intensity.

Fields

direction: [f32; 3]

color: [f32; 3]

intensity: f32

cast_shadows: bool

Point

Point light (omnidirectional). Position + color + intensity + range.

Fields

position: [f32; 3]

color: [f32; 3]

intensity: f32

range: f32

cast_shadows: bool

Spot

Spot light. Position + direction + color + angles.

Fields

position: [f32; 3]

direction: [f32; 3]

color: [f32; 3]

intensity: f32

range: f32

inner_angle: f32

outer_angle: f32

cast_shadows: bool

Area

Area light (rectangle). Position + normal + up + size.

Fields

position: [f32; 3]

normal: [f32; 3]

up: [f32; 3]

width: f32

height: f32

color: [f32; 3]

intensity: f32

Ambient

Ambient light (global illumination approximation).

Fields

color: [f32; 3]

intensity: f32

Implementations

impl LightType

pub fn position(&self) -> Option<[f32; 3]>

Get the world-space position of this light (if applicable).

pub fn range(&self) -> f32

Get the effective range/radius of influence.

pub fn color(&self) -> [f32; 3]

Get the color of this light.

pub fn intensity(&self) -> f32

Get the intensity.

pub fn casts_shadows(&self) -> bool

Whether this light casts shadows.

pub fn evaluate(&self, surface_pos: [f32; 3]) -> ([f32; 3], f32, [f32; 3])

Compute the light contribution at a given surface point. Returns (light_dir_to_surface, attenuation, color).

Trait Implementations

impl Clone for LightType

fn clone(&self) -> LightType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LightType

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

Formats the value using the given formatter.