Struct Mat4 

#[repr(C)]
pub struct Mat4 {
    pub cols: [Vec4; 4],
}

A 4x4 column-major matrix.

The matrix is stored in column-major order for GPU compatibility. Columns are accessed as m.cols[column_index].

Fields

cols: [Vec4; 4]

Matrix columns.

Implementations

impl Mat4

pub const ZERO: Self

Zero matrix.

pub const IDENTITY: Self

Identity matrix.

pub const fn from_cols(c0: Vec4, c1: Vec4, c2: Vec4, c3: Vec4) -> Self

Creates a matrix from column vectors.

pub fn from_rows(rows: [[Float; 4]; 4]) -> Self

Creates a matrix from row-major array (converts to column-major).

pub fn from_cols_array(arr: [Float; 16]) -> Self

Creates a matrix from a flat column-major array.

pub fn to_cols_array(self) -> [Float; 16]

Converts to a flat column-major array.

pub fn from_diagonal(diag: Vec4) -> Self

Creates a diagonal matrix.

pub fn from_scale(scale: Vec3) -> Self

Creates a scaling matrix.

pub fn from_translation(translation: Vec3) -> Self

Creates a translation matrix.

pub fn from_rotation_x(angle: Float) -> Self

Creates a rotation matrix around the X axis.

pub fn from_rotation_y(angle: Float) -> Self

Creates a rotation matrix around the Y axis.

pub fn from_rotation_z(angle: Float) -> Self

Creates a rotation matrix around the Z axis.

pub fn from_axis_angle(axis: Vec3, angle: Float) -> Self

Creates a rotation matrix around an arbitrary axis.

pub fn look_at_rh(eye: Vec3, target: Vec3, up: Vec3) -> Self

Creates a look-at view matrix (right-handed).

pub fn look_at_lh(eye: Vec3, target: Vec3, up: Vec3) -> Self

Creates a look-at view matrix (left-handed).

pub fn perspective_rh( fov_y: Float, aspect: Float, near: Float, far: Float, ) -> Self

Creates a perspective projection matrix (right-handed, Vulkan clip space).

• fov_y: Vertical field of view in radians
• aspect: Aspect ratio (width / height)
• near: Near clipping plane
• far: Far clipping plane

pub fn orthographic_rh( left: Float, right: Float, bottom: Float, top: Float, near: Float, far: Float, ) -> Self

Creates an orthographic projection matrix (right-handed).

pub fn transpose(self) -> Self

Returns the transpose of this matrix.

pub fn determinant(self) -> Float

Computes the determinant.

pub fn try_inverse(self) -> Option<Self>

Returns the inverse of this matrix, or None if not invertible.

pub fn inverse(self) -> Self

Returns the inverse of this matrix.

Panics

Panics if the matrix is not invertible.

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

Transforms a Vec4 by this matrix.

pub fn transform_point(self, p: Vec3) -> Vec3

Transforms a point (Vec3 with w=1).

pub fn transform_vector(self, v: Vec3) -> Vec3

Transforms a direction vector (Vec3 with w=0).

pub fn approx_eq(self, other: Self) -> bool

Checks if this matrix is approximately equal to another.

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 Debug for Mat4

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

Formats the value using the given formatter.

impl Default for Mat4

fn default() -> Self

Returns the “default value” for a type.

impl Mul<Vec4> for Mat4

type Output = Vec4

The resulting type after applying the * operator.

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

Performs the * operation.

impl Mul<f32> for Mat4

type Output = Mat4

The resulting type after applying the * operator.

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

Performs the * operation.

impl Mul for Mat4

type Output = Mat4

The resulting type after applying the * operator.

fn mul(self, other: Self) -> Self

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 Copy for Mat4

impl StructuralPartialEq for Mat4