Struct DirectionalLight 

pub struct DirectionalLight {
    pub direction: Vec3,
    pub color: Rgb,
    pub ambient: f32,
}

A directional light: one direction plus color and strength. 方向光：一个光照方向加上颜色与强度。

Fields

direction: Vec3

Direction from a surface toward the light; not a position. The shading term is normal · direction, so the renderer normalizes this and ignores its length. 从表面指向光源的方向，不是位置。着色项为 normal · direction，因此渲染器会将其 归一化，长度被忽略。

color: Rgb

Light color and strength. 光的颜色和强度。

ambient: f32

Base brightness added to every lit surface. 添加到每个被照亮表面的基础亮度。

Trait Implementations

impl Clone for DirectionalLight

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 DirectionalLight

impl Debug for DirectionalLight

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

Formats the value using the given formatter.

impl Default for DirectionalLight

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for DirectionalLight

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DirectionalLight