Struct Matrix4x4 

pub struct Matrix4x4 {
    pub elements: [f64; 16],
}

A 4x4 matrix stored in column-major order, used for 3D transformations.

Fields

elements: [f64; 16]

The 16 elements of the matrix in column-major order.

get_elements is public: example/src/page/game_3d reads the matrix from outside this crate. get_mut / set stay crate-internal.

Implementations

impl Matrix4x4

Implements matrix operations for Matrix4x4.

pub fn identity() -> Matrix4x4

Returns the identity matrix.

Returns

• Matrix4x4 - The identity matrix.

pub fn translation(translation: Vector3D) -> Matrix4x4

Creates a translation matrix.

Arguments

• Vector3D - The translation vector.

Returns

• Matrix4x4 - The translation matrix.

pub fn scaling(scale: Vector3D) -> Matrix4x4

Creates a scaling matrix.

Arguments

• Vector3D - The scale factors.

Returns

• Matrix4x4 - The scaling matrix.

pub fn rotation(quaternion: Quaternion) -> Matrix4x4

Creates a rotation matrix from a quaternion.

Arguments

• Quaternion - The rotation quaternion.

Returns

• Matrix4x4 - The rotation matrix.

pub fn perspective(fov: f64, aspect: f64, near: f64, far: f64) -> Matrix4x4

Creates a perspective projection matrix.

Arguments

• f64 - The vertical field of view in radians.
• f64 - The aspect ratio (width / height).
• f64 - The near clipping plane distance.
• f64 - The far clipping plane distance.

Returns

• Matrix4x4 - The perspective projection matrix.

pub fn orthographic( left: f64, right: f64, bottom: f64, top: f64, near: f64, far: f64, ) -> Matrix4x4

Creates an orthographic projection matrix.

Arguments

• f64 - The left boundary.
• f64 - The right boundary.
• f64 - The bottom boundary.
• f64 - The top boundary.
• f64 - The near clipping plane distance.
• f64 - The far clipping plane distance.

Returns

• Matrix4x4 - The orthographic projection matrix.

pub fn look_at(eye: Vector3D, target: Vector3D, up: Vector3D) -> Matrix4x4

Creates a view matrix using the “look at” convention.

Arguments

• Vector3D - The eye position.
• Vector3D - The target position to look at.
• Vector3D - The up direction.

Returns

• Matrix4x4 - The view matrix.

pub fn multiply(&self, other: Matrix4x4) -> Matrix4x4

Multiplies this matrix by another using fully unrolled arithmetic.

Eliminates all loop overhead and allows the compiler to maximize register allocation and instruction-level parallelism.

Arguments

• Matrix4x4 - The other matrix.

Returns

• Matrix4x4 - The product matrix.

pub fn transform_point(&self, point: Vector3D) -> Vector3D

Transforms a 3D point by this matrix, applying the perspective divide.

Arguments

• Vector3D - The point to transform.

Returns

• Vector3D - The transformed point.

impl Matrix4x4

pub fn get_elements(&self) -> [f64; 16]

impl Matrix4x4

pub fn new(elements: [f64; 16]) -> Self

Trait Implementations

impl Clone for Matrix4x4

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Matrix4x4

impl Debug for Matrix4x4

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

Formats the value using the given formatter.

impl Default for Matrix4x4

Implements Default for Matrix4x4 as the identity matrix.

fn default() -> Matrix4x4

Constructs a default Matrix4x4 value.

Returns

• Matrix4x4 - A default-constructed instance with the documented initial state.

impl PartialEq for Matrix4x4

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Matrix4x4

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Matrix4x4