LodRenderer: Add support for underwater fog

src/main/java/com/seibel/lod/core/render/LodRenderProgram.java

@@ -135,9 +135,15 @@ public class LodRenderProgram extends ShaderProgram {
 		setUniform(lightMapUniform, lightmapBindPoint);
 	}
 	
-	public void fillUniformDataForFog(LodFogConfig fogSettings) {
+	public void fillUniformDataForFog(LodFogConfig fogSettings, boolean isUnderWater) {
 		super.bind();
-		if (fogSettings.fogDrawMode != FogDrawMode.FOG_DISABLED) {
+		if (isUnderWater) {
+			setUniform(fogEnabledUniform, true);
+			setUniform(nearFogEnabledUniform, false);
+			setUniform(farFogEnabledUniform, true);
+			setUniform(farFogStartUniform, 0.0f);
+			setUniform(farFogEndUniform, 0.0f);
+		} else if (fogSettings.fogDrawMode != FogDrawMode.FOG_DISABLED) {
 			setUniform(fogEnabledUniform, true);
 			setUniform(nearFogEnabledUniform, fogSettings.fogDistance != FogDistance.FAR);
 			setUniform(farFogEnabledUniform, fogSettings.fogDistance != FogDistance.NEAR);

src/main/java/com/seibel/lod/core/render/LodRenderer.java

@@ -270,9 +270,9 @@ public class LodRenderer
 		/*---------Fill uniform data--------*/
 		// Fill the uniform data. Note: GL33.GL_TEXTURE0 == texture bindpoint 0
 		shaderProgram.fillUniformData(modelViewMatrix, projectionMatrix, getTranslatedCameraPos(),
-				getFogColor(), (int) (MC.getSkyDarken(partialTicks) * 15), 0);
+				MC_RENDER.isFogStateInUnderWater() ? getUnderWaterFogColor(partialTicks) : getFogColor(partialTicks), (int) (MC.getSkyDarken(partialTicks) * 15), 0);
 		// Previous guy said fog setting may be different from region to region, but the fogSettings never changed... soooooo...
-		shaderProgram.fillUniformDataForFog(fogSettings);
+		shaderProgram.fillUniformDataForFog(fogSettings, MC_RENDER.isFogStateInUnderWater());
 		// Note: Since lightmapTexture is changing every frame, it's faster to recreate it than to reuse the old one.
 		lightmapTexture.fillData(MC_RENDER.getLightmapTextureWidth(), MC_RENDER.getLightmapTextureHeight(), MC_RENDER.getLightmapPixels());
 
@@ -370,17 +370,21 @@ public class LodRenderer
 		lodBufferBuilderFactory.setupBuffers(lodDim);
 	}
 
-	private Color getFogColor()
+	private Color getFogColor(float partialTicks)
 	{
 		Color fogColor;
 		
 		if (CONFIG.client().graphics().fogQuality().getFogColorMode() == FogColorMode.USE_SKY_COLOR)
 			fogColor = MC_RENDER.getSkyColor();
 		else
-			fogColor = MC_RENDER.getFogColor();
+			fogColor = MC_RENDER.getFogColor(partialTicks);
 		
 		return fogColor;
 	}
+	private Color getUnderWaterFogColor(float partialTicks)
+	{
+		return MC_RENDER.getUnderWaterFogColor(partialTicks);
+	}
 	
 	/**
 	 * Translate the camera relative to the LodDimension's center,

src/main/java/com/seibel/lod/core/wrapperInterfaces/minecraft/IMinecraftRenderWrapper.java

@@ -51,7 +51,9 @@ public interface IMinecraftRenderWrapper
 	
 	double getGamma();
 	
-	Color getFogColor();
+	Color getFogColor(float partialTicks);
+	
+	default Color getUnderWaterFogColor(float partialTicks) {return getFogColor(partialTicks);}
 
 	Color getSkyColor();
 	
@@ -131,4 +133,8 @@ public interface IMinecraftRenderWrapper
 	public default boolean tryDisableVanillaFog() {
 		return false;
 	}
+	
+	public default boolean isFogStateInUnderWater() {
+		return false;
+	}
 }