Fix water rendering overlay on glass blocks

src/generated/resources/data/minecraft/tags/blocks/impermeable.json

@@ -0,0 +1,16 @@
+{
+  "replace": false,
+  "values": [
+    "create:tiled_glass",
+    "create:framed_glass",
+    "create:horizontal_framed_glass",
+    "create:vertical_framed_glass",
+    "create:oak_window",
+    "create:spruce_window",
+    "create:birch_window",
+    "create:jungle_window",
+    "create:acacia_window",
+    "create:dark_oak_window",
+    "create:ornate_iron_window"
+  ]
+}

src/main/java/com/simibubi/create/content/palettes/AllPaletteBlocks.java

@@ -29,6 +29,7 @@ import net.minecraft.block.GlassBlock;
 import net.minecraft.block.SandBlock;
 import net.minecraft.block.WoodType;
 import net.minecraft.client.renderer.RenderType;
+import net.minecraft.tags.BlockTags;
 import net.minecraft.util.ResourceLocation;
 import net.minecraftforge.common.Tags;
 
@@ -45,7 +46,7 @@ public class AllPaletteBlocks {
 		.addLayer(() -> RenderType::getCutoutMipped)
 		.recipe((c, p) -> p.stonecutting(DataIngredient.tag(Tags.Items.GLASS_COLORLESS), c::get))
 		.blockstate(palettesCubeAll())
-		.tag(Tags.Blocks.GLASS_COLORLESS)
+		.tag(Tags.Blocks.GLASS_COLORLESS, BlockTags.IMPERMEABLE)
 		.item()
 		.tag(Tags.Items.GLASS_COLORLESS)
 		.build()

src/main/java/com/simibubi/create/content/palettes/ConnectedGlassBlock.java

@@ -2,7 +2,10 @@ package com.simibubi.create.content.palettes;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.block.GlassBlock;
+import net.minecraft.fluid.IFluidState;
 import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.ILightReader;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 
@@ -19,4 +22,9 @@ public class ConnectedGlassBlock extends GlassBlock {
 			: super.isSideInvisible(state, adjacentBlockState, side);
 	}
 
+	@Override
+	public boolean shouldDisplayFluidOverlay(BlockState state, ILightReader world, BlockPos pos, IFluidState fluidState) {
+		return true;
+	}
+
 }

src/main/java/com/simibubi/create/foundation/data/WindowGen.java

@@ -29,6 +29,7 @@ import net.minecraft.block.Blocks;
 import net.minecraft.block.WoodType;
 import net.minecraft.client.renderer.RenderType;
 import net.minecraft.data.ShapedRecipeBuilder;
+import net.minecraft.tags.BlockTags;
 import net.minecraft.util.IItemProvider;
 import net.minecraft.util.ResourceLocation;
 import net.minecraftforge.client.model.generators.ModelFile;
@@ -77,6 +78,7 @@ public class WindowGen {
 			.loot((t, g) -> t.registerSilkTouch(g))
 			.blockstate((c, p) -> p.simpleBlock(c.get(), p.models()
 				.cubeColumn(c.getName(), sideTexture.apply(c.getName()), endTexture.apply(c.getName()))))
+			.tag(BlockTags.IMPERMEABLE)
 			.simpleItem()
 			.register();
 	}
@@ -89,7 +91,7 @@ public class WindowGen {
 			.loot((t, g) -> t.registerSilkTouch(g))
 			.recipe((c, p) -> p.stonecutting(DataIngredient.tag(Tags.Items.GLASS_COLORLESS), c::get))
 			.blockstate((c, p) -> BlockStateGen.cubeAll(c, p, "palettes/", "framed_glass"))
-			.tag(Tags.Blocks.GLASS_COLORLESS)
+			.tag(Tags.Blocks.GLASS_COLORLESS, BlockTags.IMPERMEABLE)
 			.item()
 			.tag(Tags.Items.GLASS_COLORLESS)
 			.model((c, p) -> p.cubeColumn(c.getName(), p.modLoc(palettesDir() + c.getName()),