Package net.minecraft.client.render

Class LightmapTextureManager

java.lang.Object

net.minecraft.client.render.LightmapTextureManager

All Implemented Interfaces:

AutoCloseable

@Environment(CLIENT)
public class LightmapTextureManager
extends Object
implements AutoCloseable

The lightmap texture manager maintains a texture containing the RGBA overlay for each of the 16×16 sky and block light combinations.

Also contains some utilities to pack and unpack lightmap coordinates from sky and block light values, and some lightmap coordinates constants.

Mappings:

Namespace	Name
intermediary	net/minecraft/class_765
official	fjl
named	net/minecraft/client/render/LightmapTextureManager

Field Summary

Fields

Modifier and Type	Field	Description
private final MinecraftClient	client
private boolean	dirty
private float	flickerIntensity
private final NativeImage	image
static final int	MAX_BLOCK_LIGHT_COORDINATE	Represents the maximum block-light-wise lightmap coordinate whose value is 240.
static final int	MAX_LIGHT_COORDINATE	Represents the maximum lightmap coordinate, where both sky light and block light equals 15.
static final int	MAX_SKY_LIGHT_COORDINATE	Represents the maximum sky-light-wise lightmap coordinate whose value is 15728640.
private final GameRenderer	renderer
private final NativeImageBackedTexture	texture
private final Identifier	textureIdentifier

Constructor Summary

Constructors

Constructor	Description
LightmapTextureManager(GameRenderer renderer, MinecraftClient client)

Method Summary

Modifier and Type	Method	Description
private static void	clamp(Vector3f vec)	Clamps each component of vec between 0.0f and 1.0f.
void	close()
void	disable()
private float	easeOutQuart(float x)	Represents an easing function.
void	enable()
static int	getBlockLightCoordinates(int light)
static float	getBrightness(DimensionType type, int lightLevel)
private float	getDarkness(LivingEntity entity, float factor, float delta)
private float	getDarknessFactor(float delta)
static int	getSkyLightCoordinates(int light)
static int	pack(int block, int sky)
void	tick()
void	update(float delta)

Methods inherited from class java.lang.Object

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

Field Details

MAX_LIGHT_COORDINATE

public static final int MAX_LIGHT_COORDINATE

Represents the maximum lightmap coordinate, where both sky light and block light equals 15. The value of this maximum lightmap coordinate is 15728880.

See Also:

• Constant Field Values

Mappings:

Namespace	Name	Mixin selector
intermediary	field_32767	Lnet/minecraft/class_765;field_32767:I
official	a	Lfjl;a:I
named	MAX_LIGHT_COORDINATE	Lnet/minecraft/client/render/LightmapTextureManager;MAX_LIGHT_COORDINATE:I

MAX_SKY_LIGHT_COORDINATE

public static final int MAX_SKY_LIGHT_COORDINATE

Represents the maximum sky-light-wise lightmap coordinate whose value is 15728640. This is equivalent to a 15 sky light and 0 block light.

See Also:

• Constant Field Values

Mappings:

Namespace	Name	Mixin selector
intermediary	field_32768	Lnet/minecraft/class_765;field_32768:I
official	b	Lfjl;b:I
named	MAX_SKY_LIGHT_COORDINATE	Lnet/minecraft/client/render/LightmapTextureManager;MAX_SKY_LIGHT_COORDINATE:I

MAX_BLOCK_LIGHT_COORDINATE

public static final int MAX_BLOCK_LIGHT_COORDINATE

Represents the maximum block-light-wise lightmap coordinate whose value is 240. This is equivalent to a 0 sky light and 15 block light.

See Also:

• Constant Field Values

Mappings:

Namespace	Name	Mixin selector
intermediary	field_32769	Lnet/minecraft/class_765;field_32769:I
official	c	Lfjl;c:I
named	MAX_BLOCK_LIGHT_COORDINATE	Lnet/minecraft/client/render/LightmapTextureManager;MAX_BLOCK_LIGHT_COORDINATE:I

texture

private final NativeImageBackedTexture texture

Mappings:

Namespace	Name	Mixin selector
intermediary	field_4138	Lnet/minecraft/class_765;field_4138:Lnet/minecraft/class_1043;
official	d	Lfjl;d:Lftx;
named	texture	Lnet/minecraft/client/render/LightmapTextureManager;texture:Lnet/minecraft/client/texture/NativeImageBackedTexture;

image

private final NativeImage image

Mappings:

Namespace	Name	Mixin selector
intermediary	field_4133	Lnet/minecraft/class_765;field_4133:Lnet/minecraft/class_1011;
official	e	Lfjl;e:Lehc;
named	image	Lnet/minecraft/client/render/LightmapTextureManager;image:Lnet/minecraft/client/texture/NativeImage;

textureIdentifier

private final Identifier textureIdentifier

Mappings:

Namespace	Name	Mixin selector
intermediary	field_4136	Lnet/minecraft/class_765;field_4136:Lnet/minecraft/class_2960;
official	f	Lfjl;f:Lacq;
named	textureIdentifier	Lnet/minecraft/client/render/LightmapTextureManager;textureIdentifier:Lnet/minecraft/util/Identifier;

dirty

private boolean dirty

Mappings:

Namespace	Name	Mixin selector
intermediary	field_4135	Lnet/minecraft/class_765;field_4135:Z
official	g	Lfjl;g:Z
named	dirty	Lnet/minecraft/client/render/LightmapTextureManager;dirty:Z

flickerIntensity

private float flickerIntensity

Mappings:

Namespace	Name	Mixin selector
intermediary	field_21528	Lnet/minecraft/class_765;field_21528:F
official	h	Lfjl;h:F
named	flickerIntensity	Lnet/minecraft/client/render/LightmapTextureManager;flickerIntensity:F

renderer

private final GameRenderer renderer

Mappings:

Namespace	Name	Mixin selector
intermediary	field_4134	Lnet/minecraft/class_765;field_4134:Lnet/minecraft/class_757;
official	i	Lfjl;i:Lfjf;
named	renderer	Lnet/minecraft/client/render/LightmapTextureManager;renderer:Lnet/minecraft/client/render/GameRenderer;

client

private final MinecraftClient client

Mappings:

Namespace	Name	Mixin selector
intermediary	field_4137	Lnet/minecraft/class_765;field_4137:Lnet/minecraft/class_310;
official	j	Lfjl;j:Lenf;
named	client	Lnet/minecraft/client/render/LightmapTextureManager;client:Lnet/minecraft/client/MinecraftClient;

Constructor Details

LightmapTextureManager

public LightmapTextureManager(GameRenderer renderer,
 MinecraftClient client)

Mappings:

Namespace	Name	Mixin selector
intermediary	<init>	Lnet/minecraft/class_765;<init>(Lnet/minecraft/class_757;Lnet/minecraft/class_310;)V
official	<init>	Lfjl;<init>(Lfjf;Lenf;)V
named	<init>	Lnet/minecraft/client/render/LightmapTextureManager;<init>(Lnet/minecraft/client/render/GameRenderer;Lnet/minecraft/client/MinecraftClient;)V

Method Details

close

public void close()

Specified by:

close in interface AutoCloseable

tick

public void tick()

Mappings:

Namespace	Name	Mixin selector
intermediary	method_3314	Lnet/minecraft/class_765;method_3314()V
official	a	Lfjl;a()V
named	tick	Lnet/minecraft/client/render/LightmapTextureManager;tick()V

disable

public void disable()

Mappings:

Namespace	Name	Mixin selector
intermediary	method_3315	Lnet/minecraft/class_765;method_3315()V
official	b	Lfjl;b()V
named	disable	Lnet/minecraft/client/render/LightmapTextureManager;disable()V

enable

public void enable()

Mappings:

Namespace	Name	Mixin selector
intermediary	method_3316	Lnet/minecraft/class_765;method_3316()V
official	c	Lfjl;c()V
named	enable	Lnet/minecraft/client/render/LightmapTextureManager;enable()V

getDarknessFactor

private float getDarknessFactor(float delta)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_42597	Lnet/minecraft/class_765;method_42597(F)F
official	b	Lfjl;b(F)F
named	getDarknessFactor	Lnet/minecraft/client/render/LightmapTextureManager;getDarknessFactor(F)F

getDarkness

private float getDarkness(LivingEntity entity,
 float factor,
 float delta)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_42596	Lnet/minecraft/class_765;method_42596(Lnet/minecraft/class_1309;FF)F
official	a	Lfjl;a(Lbfx;FF)F
named	getDarkness	Lnet/minecraft/client/render/LightmapTextureManager;getDarkness(Lnet/minecraft/entity/LivingEntity;FF)F

update

public void update(float delta)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_3313	Lnet/minecraft/class_765;method_3313(F)V
official	a	Lfjl;a(F)V
named	update	Lnet/minecraft/client/render/LightmapTextureManager;update(F)V

clamp

private static void clamp(Vector3f vec)

Clamps each component of vec between 0.0f and 1.0f.

Mappings:

Namespace	Name	Mixin selector
intermediary	method_46557	Lnet/minecraft/class_765;method_46557(Lorg/joml/Vector3f;)V
official	a	Lfjl;a(Lorg/joml/Vector3f;)V
named	clamp	Lnet/minecraft/client/render/LightmapTextureManager;clamp(Lorg/joml/Vector3f;)V

easeOutQuart

private float easeOutQuart(float x)

Represents an easing function.

In this class, it's also used to brighten colors, then the result is used to lerp between the normal and brightened color with the gamma value.

Parameters:

x - represents the absolute progress of the animation in the bounds of 0 (beginning of the animation) and 1 (end of animation)

See Also:

• https://easings.net/#easeOutQuart

Mappings:

Namespace	Name	Mixin selector
intermediary	method_23795	Lnet/minecraft/class_765;method_23795(F)F
official	c	Lfjl;c(F)F
named	easeOutQuart	Lnet/minecraft/client/render/LightmapTextureManager;easeOutQuart(F)F

getBrightness

public static float getBrightness(DimensionType type,
 int lightLevel)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_23284	Lnet/minecraft/class_765;method_23284(Lnet/minecraft/class_2874;I)F
official	a	Lfjl;a(Ldfh;I)F
named	getBrightness	Lnet/minecraft/client/render/LightmapTextureManager;getBrightness(Lnet/minecraft/world/dimension/DimensionType;I)F

pack

public static int pack(int block,
 int sky)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_23687	Lnet/minecraft/class_765;method_23687(II)I
official	a	Lfjl;a(II)I
named	pack	Lnet/minecraft/client/render/LightmapTextureManager;pack(II)I

getBlockLightCoordinates

public static int getBlockLightCoordinates(int light)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_24186	Lnet/minecraft/class_765;method_24186(I)I
official	a	Lfjl;a(I)I
named	getBlockLightCoordinates	Lnet/minecraft/client/render/LightmapTextureManager;getBlockLightCoordinates(I)I

getSkyLightCoordinates

public static int getSkyLightCoordinates(int light)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_24187	Lnet/minecraft/class_765;method_24187(I)I
official	b	Lfjl;b(I)I
named	getSkyLightCoordinates	Lnet/minecraft/client/render/LightmapTextureManager;getSkyLightCoordinates(I)I