Struct kas_core::draw::color::Rgba

#[repr(C)]
pub struct Rgba {
    pub r: f32,
    pub g: f32,
    pub b: f32,
    pub a: f32,
}

4-part colour data, linear, sRGB colour space

Linear format must be used for colour data uploaded via uniforms or vertex lists. Conversion from sRGB happens in user-space.

This is the expected type for shader inputs, encoded as four f32 values in RGBA order.

Fields

r: f32

g: f32

b: f32

a: f32

Implementations

impl Rgba

pub const TRANSPARENT: Self = _

Transparent black

pub const WHITE: Self = _

Opaque white

pub const BLACK: Self = _

Opaque black

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

Construct from R-G-B-A components

Values should be between 0 and 1 on a linear scale.

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

Construct from opaque R-G-B

Values should be between 0 and 1 on a linear scale.

pub const fn grey(s: f32) -> Self

Construct from grey-scale

pub const fn ga(s: f32, a: f32) -> Self

Construct from grey-scale with alpha

pub fn sum(self) -> f32

Get the sum of the three colour components

pub fn average(self) -> Self

Average three colour components (desaturate)

pub fn multiply(self, x: f32) -> Self

Multiply and clamp three colour components

pub fn max(self, min: f32) -> Self

Clamp each colour component to at least min

Trait Implementations

impl Clone for Rgba

fn clone(&self) -> Rgba

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Rgba

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Rgba

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
    __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<[f32; 4]> for Rgba

fn from(c: [f32; 4]) -> Self

Converts to this type from the input type.

impl From<Rgb> for Rgba

fn from(c: Rgb) -> Self

Converts to this type from the input type.

impl From<Rgba> for [f32; 4]

fn from(c: Rgba) -> Self

Converts to this type from the input type.

impl From<Rgba> for Rgba8Srgb

fn from(c: Rgba) -> Self

Converts to this type from the input type.

impl From<Rgba8Srgb> for Rgba

fn from(c: Rgba8Srgb) -> Self

Converts to this type from the input type.

impl FromStr for Rgba

type Err = ParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl PartialEq<Rgba> for Rgba

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Serialize for Rgba

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

Serialize this value into the given Serde serializer.

impl Copy for Rgba

impl StructuralPartialEq for Rgba