Package net.minecraft.util.math

Class AffineTransformation

java.lang.Object

net.minecraft.util.math.AffineTransformation

@Environment(CLIENT)
public final class AffineTransformation
extends Object

An affine transformation is a decomposition of a 4×4 real matrix into a rotation quaternion, a scale 3-vector, a second rotation quaternion, and a translation 3-vector. It is also known as "TRSR" transformation, meaning "translation rotation scale rotation".

This class is immutable; its matrix is lazily decomposed upon demand.

Field Summary

Fields

Modifier and Type	Field	Description
private static AffineTransformation	IDENTITY
private boolean	initialized
private Matrix4f	matrix
private Quaternion	rotation1
private Quaternion	rotation2
private Vec3f	scale
private Vec3f	translation

Constructor Summary

Constructors

Constructor	Description
AffineTransformation(Matrix4f matrix)
AffineTransformation(Vec3f translation, Quaternion rotation2, Vec3f scale, Quaternion rotation1)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object object)
static com.mojang.datafixers.util.Pair<Matrix3f,Vec3f>	getLinearTransformationAndTranslationFromAffine(Matrix4f affineTransform)
Matrix4f	getMatrix()
Quaternion	getRotation2()
int	hashCode()
static AffineTransformation	identity()
private void	init()
AffineTransformation	invert()
AffineTransformation	multiply(AffineTransformation other)
private static Matrix4f	setup(Vec3f translation, Quaternion rotation2, Vec3f scale, Quaternion rotation1)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Details

IDENTITY

private static final AffineTransformation IDENTITY

matrix

private final Matrix4f matrix

initialized

private boolean initialized

translation

@Nullable
private Vec3f translation

rotation2

@Nullable
private Quaternion rotation2

scale

@Nullable
private Vec3f scale

rotation1

@Nullable
private Quaternion rotation1

Constructor Details

AffineTransformation

public AffineTransformation(@Nullable
Matrix4f matrix)

AffineTransformation

public AffineTransformation(@Nullable
Vec3f translation,
@Nullable
Quaternion rotation2,
@Nullable
Vec3f scale,
@Nullable
Quaternion rotation1)

Method Details

identity

public static AffineTransformation identity()

multiply

public AffineTransformation multiply(AffineTransformation other)

invert

@Nullable
public AffineTransformation invert()

init

private void init()

setup

private static Matrix4f setup(@Nullable
Vec3f translation,
@Nullable
Quaternion rotation2,
@Nullable
Vec3f scale,
@Nullable
Quaternion rotation1)

getLinearTransformationAndTranslationFromAffine

public static com.mojang.datafixers.util.Pair<Matrix3f,Vec3f> getLinearTransformationAndTranslationFromAffine(Matrix4f affineTransform)

getMatrix

public Matrix4f getMatrix()

getRotation2

public Quaternion getRotation2()

equals

public boolean equals(Object object)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object