Struct DirectionalLight 

pub struct DirectionalLight {
    pub direction: Vec3,
    pub color: LinearRgba,
    pub intensity: f32,
    pub shadow_enabled: bool,
    pub shadow_bias: f32,
    pub shadow_normal_bias: f32,
}

A directional light source that illuminates from a uniform direction.

Directional lights simulate infinitely distant light sources like the sun. They have no position, only a direction, and cast parallel rays with no falloff.

Examples

use khora_core::renderer::light::DirectionalLight;
use khora_core::math::{Vec3, LinearRgba};

// Create a warm sunlight
let sun = DirectionalLight {
    direction: Vec3::new(-0.5, -1.0, -0.3).normalize(),
    color: LinearRgba::new(1.0, 0.95, 0.8, 1.0),
    intensity: 1.0,
    shadow_enabled: true,
    shadow_bias: 0.005,
    shadow_normal_bias: 0.02,
};

Fields

direction: Vec3

The direction the light is pointing (normalized).

This vector points from the light source towards the scene. For a sun at noon, this would be (0, -1, 0).

color: LinearRgba

The color of the light in linear RGB space.

intensity: f32

The intensity multiplier for the light.

A value of 1.0 represents standard intensity. Higher values create brighter lights, useful for HDR rendering.

shadow_enabled: bool

Whether this light casts shadows.

shadow_bias: f32

Constant bias to apply to depth values to prevent shadow acne.

shadow_normal_bias: f32

Normal-based bias to apply to prevent shadow acne on sloped surfaces.

Trait Implementations

impl Clone for DirectionalLight

fn clone(&self) -> DirectionalLight

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DirectionalLight

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

Formats the value using the given formatter.

impl Default for DirectionalLight

fn default() -> DirectionalLight

Returns the “default value” for a type.

impl PartialEq for DirectionalLight

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for DirectionalLight

impl StructuralPartialEq for DirectionalLight