Struct Vec4 

pub struct Vec4 {
    pub x: f32,
    pub y: f32,
    pub z: f32,
    pub w: f32,
}

Vecteur 4D en f32.

Utile pour les coordonnées homogènes (w=1 pour un point, w=0 pour un vecteur de direction) et les couleurs RGBA.

Fields

x: f32

Composante X.

y: f32

Composante Y.

z: f32

Composante Z.

w: f32

Composante W.

Implementations

impl Vec4

pub const ZERO: Self

Vecteur nul [0, 0, 0, 0].

pub const fn new(x: f32, y: f32, z: f32, w: f32) -> Self

Crée un nouveau vecteur 4D.

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

Retourne les composantes sous la forme [x, y, z, w].

pub const fn from_array(v: [f32; 4]) -> Self

Crée un vecteur depuis un tableau [x, y, z, w].

pub const fn from_vec3(v: Vec3, w: f32) -> Self

Construit un Vec4 depuis un Vec3 en ajoutant w.

Convention : w=1.0 pour un point, w=0.0 pour une direction.

pub const fn xyz(&self) -> Vec3

Extrait les composantes XYZ comme Vec3, en ignorant w.

pub fn dot(&self, rhs: &Self) -> f32

Produit scalaire 4D : x₁x₂ + y₁y₂ + z₁z₂ + w₁w₂.

pub fn norm_sq(&self) -> f32

Norme au carré. Infaillible.

pub fn norm(&self) -> Result<f32, VecError>

Norme euclidienne via embedded_f32_sqrt.

pub fn normalize(&self) -> Result<Self, VecError>

Vecteur unitaire dans la même direction.

pub fn lerp(&self, rhs: &Self, t: f32) -> Self

Interpolation linéaire.

pub fn hadamard(&self, rhs: &Self) -> Self

Multiplication terme à terme (produit de Hadamard).

pub fn is_finite(&self) -> bool

Retourne true si tous les composants sont finis.

Trait Implementations

impl Add for Vec4

type Output = Vec4

The resulting type after applying the + operator.

fn add(self, rhs: Self) -> Self

Performs the + operation.

impl AddAssign for Vec4

fn add_assign(&mut self, rhs: Self)

Performs the += operation.

impl Clone for Vec4

fn clone(&self) -> Vec4

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Vec4

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

Formats the value using the given formatter.

impl Div<f32> for Vec4

type Output = Vec4

The resulting type after applying the / operator.

fn div(self, s: f32) -> Self

Performs the / operation.

impl Mul<f32> for Vec4

type Output = Vec4

The resulting type after applying the * operator.

fn mul(self, s: f32) -> Self

Performs the * operation.

impl MulAssign<f32> for Vec4

fn mul_assign(&mut self, s: f32)

Performs the *= operation.

impl Neg for Vec4

type Output = Vec4

The resulting type after applying the - operator.

fn neg(self) -> Self

Performs the unary - operation.

impl PartialEq for Vec4

fn eq(&self, other: &Vec4) -> bool

Tests for self and other values to be equal, and is used by ==.

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

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

impl Sub for Vec4

type Output = Vec4

The resulting type after applying the - operator.

fn sub(self, rhs: Self) -> Self

Performs the - operation.

impl SubAssign for Vec4

fn sub_assign(&mut self, rhs: Self)

Performs the -= operation.

impl Copy for Vec4

impl StructuralPartialEq for Vec4