filament-utils/io.github.erkko68.filament.utils/Mat4

Mat4

data class Mat4(var x: Float4 = Float4(x = 1.0f), var y: Float4 = Float4(y = 1.0f), var z: Float4 = Float4(z = 1.0f), var w: Float4 = Float4(w = 1.0f))

A 4×4 column-major matrix of Float values.

Stored as four column vectors x, y, z, and w. Default-constructed as the identity matrix.

Mat4 m:
  m[0]=x  m[1]=y  m[2]=z  m[3]=w

Convenience accessors:

right / up / forward: the upper-left 3×3 basis vectors
position: the translation component (column w.xyz)
scale: per-axis scale factors (lengths of the basis vectors)
rotation: Euler angles extracted from the matrix
upperLeft: the upper-left Mat3 submatrix

Constructors

Mat4

constructor(x: Float4 = Float4(x = 1.0f), y: Float4 = Float4(y = 1.0f), z: Float4 = Float4(z = 1.0f), w: Float4 = Float4(w = 1.0f))

constructor(right: Float3, up: Float3, forward: Float3, position: Float3 = Float3())

constructor(m: Mat4)

Types

Companion

object Companion

Properties

var forward: Float3

var position: Float3

var right: Float3

val rotation: Float3

val scale: Float3

val translation: Float3

var up: Float3

upperLeft

val upperLeft: Mat3

var w: Float4

var x: Float4

var y: Float4

var z: Float4

Functions

compareTo

inline fun compareTo(m: Mat4, delta: Float = 0.0f): Mat4

inline fun compareTo(v: Float, delta: Float = 0.0f): Mat4

dec

operator fun dec(): Mat4

div

operator fun div(v: Float): Mat4

equals

inline fun equals(m: Mat4, delta: Float = 0.0f): Boolean

inline fun equals(v: Float, delta: Float = 0.0f): Boolean

get

operator fun get(column: MatrixColumn): Float4

operator fun get(column: Int): Float4

operator fun get(column: MatrixColumn, row: Int): Float

operator fun get(column: Int, row: Int): Float

inc

operator fun inc(): Mat4

invoke

operator fun invoke(row: Int, column: Int): Float

operator fun invoke(row: Int, column: Int, v: Float)

minus

operator fun minus(v: Float): Mat4

plus

operator fun plus(v: Float): Mat4

set

operator fun set(column: Int, v: Float4)

operator fun set(column: Int, row: Int, v: Float)

times

operator fun times(v: Float4): Float4

operator fun times(m: Mat4): Mat4

operator fun times(v: Float): Mat4

toEulerAngles

fun toEulerAngles(order: RotationsOrder = RotationsOrder.ZYX): Float3

toFloatArray

fun toFloatArray(): FloatArray

toQuaternion

fun toQuaternion(): Quaternion

toString

open override fun toString(): String

unaryMinus

operator fun unaryMinus(): Mat4