Struct Mat4 

#[repr(C)]
pub struct Mat4 {
    pub data: [[f32; 4]; 4],
}

4x4 matrix for transforms.

Fields

data: [[f32; 4]; 4]

Row-major matrix data [row][col]

Implementations

impl Mat4

pub const fn from_data(data: [[f32; 4]; 4]) -> Mat4

Create from raw data (row-major).

pub const fn identity() -> Mat4

Create identity matrix.

pub const fn zero() -> Mat4

Create zero matrix.

pub const fn translation(x: f32, y: f32, z: f32) -> Mat4

Create translation matrix.

pub const fn translation_2d(x: f32, y: f32) -> Mat4

Create 2D translation matrix.

pub const fn scale(x: f32, y: f32, z: f32) -> Mat4

Create scale matrix.

pub const fn scale_2d(x: f32, y: f32) -> Mat4

Create 2D scale matrix.

pub const fn scale_uniform(s: f32) -> Mat4

Create uniform scale matrix.

pub fn rotation_z(angle_rad: f32) -> Mat4

Create rotation around Z axis (2D rotation).

pub fn ortho( left: f32, right: f32, bottom: f32, top: f32, near: f32, far: f32, ) -> Mat4

Create orthographic projection matrix.

pub fn ortho_screen(width: f32, height: f32) -> Mat4

Create orthographic projection for screen coordinates (Y down).

pub fn mul(&self, other: &Mat4) -> Mat4

Matrix multiplication.

pub fn transform_vec4(&self, v: Vec4) -> Vec4

Transform a Vec4.

pub fn transform_point(&self, p: Point) -> Point

Transform a 2D point (assumes z=0, w=1).

pub fn transform_rect(&self, rect: &Rect) -> Rect

Transform a rectangle.

pub const fn column(&self, idx: usize) -> Vec4

Get column as Vec4.

pub const fn row(&self, idx: usize) -> Vec4

Get row as Vec4.

pub const fn transpose(&self) -> Mat4

Transpose the matrix.

Trait Implementations

impl Clone for Mat4

fn clone(&self) -> Mat4

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Mat4

impl Debug for Mat4

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

Formats the value using the given formatter.

impl Default for Mat4

fn default() -> Mat4

Returns the “default value” for a type.

impl Mul for Mat4

type Output = Mat4

The resulting type after applying the * operator.

fn mul(self, rhs: Mat4) -> Mat4

Performs the * operation.

impl Mul<Vec4> for Mat4

type Output = Vec4

The resulting type after applying the * operator.

fn mul(self, rhs: Vec4) -> Vec4

Performs the * operation.

impl PartialEq for Mat4

fn eq(&self, other: &Mat4) -> 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 StructuralPartialEq for Mat4