Type Alias munum::Mat4

pub type Mat4<T = f32> = Matrix<T, 4, 4>;

A 4x4 matrix

Aliased Type

struct Mat4<T = f32>(/* private fields */);

Implementations

impl<T: Copy + NumAssign> Mat4<T>

pub fn det(&self) -> T

Calculates the determinant of this matrix.

Examples

let m = Mat4::<i32>::from_slice(&[1, 1, 1, -1, 1, 1, -1, 1, 1, -1, 1, 1, -1, 1, 1, 1]);
assert_eq!(m.det(), -16);

pub fn invert(&mut self) -> bool

Invert this matrix. If this matrix is not invertible, this method returns false and the matrix is unchanged.

Examples

let mut m = <Mat4>::from_slice(&[1., 1., 1., -1., 1., 1., -1., 1., 1., -1., 1., 1., -1., 1., 1., 1.]);
assert!(m.invert());
assert_eq!(*m.as_ref(), [0.25, 0.25, 0.25, -0.25, 0.25, 0.25, -0.25, 0.25, 0.25, -0.25, 0.25, 0.25, -0.25, 0.25, 0.25, 0.25]);

Trait Implementations

impl<T: Copy + NumAssign> From<Matrix<T, 3, 3>> for Mat4<T>

fn from(m: Mat3<T>) -> Self

Augments a Mat3 into a Mat4 The resulting Mat4 contains the given Mat3 on upper-left with the lower-right element = 1.

Examples

let m = Mat4::from(Mat3::<i32>::from_slice(&[2, 3, 4, 5, 6, 7, 8, 9, 10]));
assert_eq!(*m.as_ref(), [2, 3, 4, 0, 5, 6, 7, 0, 8, 9, 10, 0, 0, 0, 0, 1]);