Struct DirectionalLightUnit 

pub struct DirectionalLightUnit {
    pub lux_per_unit: f32,
}

What one unit of the source’s own value of a directional light (its sun) is in lux: the calibration the lowering that made the scene’s sun (core.environment’s) chose. The sun’s intensity is its source value times lux_per_unit, so color * intensity / lux_per_unit is the value the source stored, the one a program of the source reads its sun in (crate::shader::FrameParameter::LightColour). The lowering that makes the sun writes it; a world whose sun no lowering made has none.

Fields

lux_per_unit: f32

Lux per unit of the source’s directional light value; finite and above 0.

Trait Implementations

impl Clone for DirectionalLightUnit

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 DirectionalLightUnit

impl Debug for DirectionalLightUnit

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

Formats the value using the given formatter.

impl PartialEq for DirectionalLightUnit

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

Equality operator ==.

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

Inequality operator !=.

impl Resource for DirectionalLightUnit

fn verify(&self, _w: &World) -> Result<(), String>

A finite factor above 0: a sun of the source’s value 1 has some intensity.

const NAME: &'static str = "core.directional_light_unit"

fn to_json(&self) -> Result<Option<Value>, JsonError>

As Component::to_json.

const VERSION: u32 = 1

fn references(&self, _out: &mut Vec<Entity>)

The entities this resource refers to, appended to out. A resource holding entity references must declare every one of them and implement Resource::retain_references.

fn retain_references(&mut self, _keep: &dyn Fn(Entity) -> bool)

Forget every reference to an entity keep refuses (set it to “none”). The world calls it whenever entities leave it (World::despawn, World::retain, World::move_components) and on the copy a World::subset or World::split_off part gets, so a resource never refers to an entity its world lacks.

impl Serialize for DirectionalLightUnit

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for DirectionalLightUnit