Struct Color 

pub struct Color {
    pub r: f32,
    pub g: f32,
    pub b: f32,
    pub a: f32,
}

Color is a straight-alpha sRGB color.

Components conventionally range from zero to one but are not clamped by the constructors. Valo premultiplies at the GPU boundary and blends in sRGB space.

Fields

r: f32

r is the straight red component.

g: f32

g is the straight green component.

b: f32

b is the straight blue component.

a: f32

a is the alpha component.

Implementations

impl Color

pub const TRANSPARENT: Color

TRANSPARENT is transparent black.

pub const BLACK: Color

BLACK is opaque black.

pub const WHITE: Color

WHITE is opaque white.

pub const fn rgba(r: f32, g: f32, b: f32, a: f32) -> Self

rgba creates a color without clamping its components.

pub const fn rgb(r: f32, g: f32, b: f32) -> Self

rgb creates an opaque color without clamping its components.

pub fn from_rgba8(r: u8, g: u8, b: u8, a: u8) -> Self

from_rgba8 converts 8-bit sRGB components to floating point.

pub fn with_alpha(self, a: f32) -> Self

with_alpha replaces the alpha component without changing RGB.

pub fn components(self) -> [f32; 4]

components returns straight components as [r, g, b, a].

pub fn premultiplied(self) -> [f32; 4]

premultiplied returns [r × a, g × a, b × a, a].

pub fn is_opaque(self) -> bool

is_opaque reports whether alpha is at least one.

Trait Implementations

impl Clone for Color

fn clone(&self) -> Color

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Color

impl Debug for Color

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

Formats the value using the given formatter.

impl Default for Color

fn default() -> Color

Returns the “default value” for a type.

impl PartialEq for Color

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Color