Matrix4 - Klyn API

Matrix4

classin packageklyn.math.geometry

public final class Matrix4

Matrix4

Immutable 4x4 matrix, column-major, acting on column vectors. a * b applies b first. Coordinates are right-handed; angles are radians. Example: m = Matrix4.translation(1.0, 0.0, 0.0) * Matrix4.scaling(2.0, 2.0, 2.0)

Properties

Modifier and Type	Member	Description
public readonly property	isIdentity `isIdentity as Boolean`	Whether this is exactly the identity matrix, O(1).

Constructors

Modifier and Type	Member	Description
public	Matrix4 `Matrix4(values as IList<Double> = null)`	Copies sixteen column-major elements, or constructs identity.

Methods

Modifier and Type	Member	Description
public	at `at(row as Int, column as Int) as Double`	Reads an element, row/column in [0,3].
public static	lookAt `lookAt(eye as Vector3d<Double>, target as Vector3d<Double>, up as Vector3d<Double>) as Matrix4`	World-to-camera matrix, camera looks from eye toward target.
public static	perspective `perspective(verticalAngle as Double, aspect as Double, near as Double, far as Double) as Matrix4`	Perspective projection (OpenGL depth [-1,1]); vertical angle in radians.
public static	rotation `rotation(rotation as Rotation3d) as Matrix4`	Converts a unit quaternion to a rotation matrix.
public static	scaling `scaling(x as Double, y as Double, z as Double) as Matrix4`	Scaling matrix; zero scales are permitted for CPU algebra.
public	transformNormal `transformNormal(normal as Vector3d<Double>) as Vector3d<Double>`	Transforms a surface normal by the inverse transpose and normalizes it.
public	transformPoint `transformPoint(point as Vector3d<Double>) as Vector3d<Double>`	Transforms a point including homogeneous division.
public static	translation `translation(x as Double, y as Double, z as Double) as Matrix4`	Translation matrix.
public	writeTo `writeTo(target as Float[], offset as Int = 0) as Void`	Writes sixteen Float values into caller-owned storage, O(1).

Operators

Modifier and Type	Member	Description
public static	operator*(a as Matrix4, b as Matrix4) as Matrix4	Matrix product.