Effect (dimension)

In custom dimensions, an effect is a set of rendering features utilised for defining a dimension's atmosphere and visuals.
== Elements ==
The dimension effect governs the following things:
* Cloud level
* Whether the dimension has ground
* The sky type to be used
* Whether to always use a bright lightmap
* Whether the ambient light level is constant
* Fog color
== Examples ==
Note that as of Java Edition 1.16.5, all effect features are hardcoded, and new ones cannot be created without mods. Dimensions created using effects from existing modded dimensions tend to carry dimension effects to the respective dimension as expected.
=== minecraft:overworld ===
The Overworld has the following effect elements:
* Cloud level: 192
*Has ground: true
*Sky type: NORMAL (sun, moon, stars etc.)
*Force bright lightmap: false
*Constant ambient light level: false
*No fog apart from view distance fog
The fog color is affected by the time of day. The new color 
C can be calculated using the following formulae, where T is the time of day and 
\left[ {\begin{array}{c}
 a\\
 b\\
 c\\
\end{array} } \right] is the existing color.
A=\max(0,\min(\frac{1}{2}+2\cos(T\times2\pi),1))
C=
\left[ {\begin{array}{cc}
 a(0.94A+0.06)\\
 b(0.94A+0.06)\\
 c(0.91A+0.09)\\
\end{array} } \right]
Overworld sky effect.png
Overworld block effect.png
=== minecraft:the_nether ===
The Nether has the following effect elements:
* No clouds (cloud level: NaN)
* Has ground: true
* Sky type: NONE (no celestial bodies)
* Force bright lightmap: false
* Constant ambient light level: false
* Has fog
The fog color is not affected by the time of day as the nether has no daylight cycle.
Nether sky effect.png
Nether block effect.png
=== minecraft:the_end ===
The End has the following effect elements:
* No clouds (cloud level: NaN)
*Has ground: false
*Sky type: END (no celestial bodies, purple spotted sky texture)
*Force bright lightmap: true
*Constant ambient light level: false
*No fog apart from view distance fog
The fog color is not affected by the time of day as the end has no daylight cycle, however each RGB component is multiplied by 0.15. 
End sky effect.png
End block effect.png
== Overview ==
 	 	
minecraft:overworld 	Celestial bodies; clouds; no extra fog; fog color depends on time of day	
minecraft:the_nether	No celestial bodies; extra fog; no clouds 	
minecraft:the_end 	No celestial bodies; no clouds; purple spotted sky texture 	
== History ==