Struct LightColor 

pub struct LightColor {
    pub r: f64,
    pub g: f64,
    pub b: f64,
}

An amount of light per channel: 0 is none, 1 is full.

Fields

r: f64

The red channel.

g: f64

The green channel.

b: f64

The blue channel.

Implementations

impl LightColor

pub const BLACK: LightColor

No light.

pub const WHITE: LightColor

Full white light.

pub const fn new(r: f64, g: f64, b: f64) -> LightColor

A light of the given channels.

pub fn from_color(color: Color, intensity: f64) -> LightColor

The light of a colour at an intensity: the channels and the alpha of the colour as fractions, times the intensity.

Deviation (winui-composition.md): the alpha of the colour of a light scales it (a transparent light lights nothing); WinUI does not say.

pub fn scale(self, factor: f64) -> LightColor

The light times a factor.

pub fn add(self, other: LightColor) -> LightColor

The sum of two lights.

pub fn lerp(self, other: LightColor, t: f64) -> LightColor

The light between self (at 0) and other (at 1).

pub fn clamped(self) -> LightColor

Every channel limited to 0..1.

pub fn atop_pixel(self) -> [u8; 4]

The light-map pixel that turns content into content lit by this light under source-atop blending: premultiplied (L - m, 1 - m), m the smallest channel, as RGBA bytes.

Trait Implementations

impl Clone for LightColor

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 LightColor

impl Debug for LightColor

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

Formats the value using the given formatter.

impl Default for LightColor

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for LightColor

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for LightColor