Previously, in 1.12.2, we use to have WorldProvider.generateLightBrightnessTable(), but things have changed with WorldGen a lot since then! How do I go about controlling the lightness in a world or biome in 1.18.2?

Edit 1: Changing has_skylight to false in the DimensionType Json gave okay results. Perhaps a custom Dimension Type class will solve this?

EDIT 2 SOLUTION: See my answer below; TLDR DimensionType.fillBrightnessRamp() & DimensionType.brightnessRamp access modifier.

Edited July 1, 20223 yr by NamelessDev
New info

It still exists it just moved. It is in DimensionSpecialEffects.

I have never used it myself, but the navigation is something like.

		ClientLevel level = ...;
		DimensionSpecialEffects dse = DimensionSpecialEffects.forType(level.dimensionType());
		dse.forceBrightLightmap();

Each dimension type is meant to represent a new dimension.

Sorry, the code I posted is the getter. There isn't a setter, so you would have to use an access transformer to modify the private field.

3 hours ago, warjort said:

It still exists it just moved. It is in DimensionSpecialEffects.

I have never used it myself, but the navigation is something like.

		ClientLevel level = ...;
		DimensionSpecialEffects dse = DimensionSpecialEffects.forType(level.dimensionType());
		dse.forceBrightLightmap();

Hey Warjort, thanks for the answer but this field is simply a boolean. For clarity, below was the code from the past that actually let me give the lightness of the dimension a value.
 

	@Override
	protected void generateLightBrightnessTable()
	{
		float f = 0F;
		
		for (int i = 0; i <= 15; i++)
		{
			float f1 = 1F - i / 15F;
			float temp = (((1F - f1) / (f1 * 3F + 1F) * (1F - f) + f) / 5f) + 0.01f;
			lightBrightnessTable[i] = temp;
		}
	}

 

Edited July 1, 20223 yr by NamelessDev

Solved. Using an access modifer to change what is clearly the original function: 

DimensionType

   private static float[] fillBrightnessRamp(float pLight) {
      float[] afloat = new float[16];

      for(int i = 0; i <= 15; ++i) {
         float f = (float)i / 15.0F;
         float f1 = f / (4.0F - 3.0F * f);
         afloat = Mth.lerp(pLight, f1, 1.0F);
      }

      return afloat;
   }

Sorry, you mentioned "skylight=false". So I assumed you were looking for the flags that control the the always bright nether and no daytime end.