From 00638dc06a0d39e4beed9e8cb99427fa33a88d6f Mon Sep 17 00:00:00 2001
From: plastoid501 <plastoid501@gmail.com>
Date: Fri, 30 Aug 2024 09:24:03 +0900
Subject: [PATCH] fix chunk border rendering + delete unnecessary rows

---
 .../iris/mixin/MixinChunkBorderRenderer.java  | 36 +++++++++++++++++++
 common/src/main/resources/mixins.iris.json    |  1 +
 2 files changed, 37 insertions(+)
 create mode 100644 common/src/main/java/net/irisshaders/iris/mixin/MixinChunkBorderRenderer.java

diff --git a/common/src/main/java/net/irisshaders/iris/mixin/MixinChunkBorderRenderer.java b/common/src/main/java/net/irisshaders/iris/mixin/MixinChunkBorderRenderer.java
new file mode 100644
index 0000000000..0b41e52abd
--- /dev/null
+++ b/common/src/main/java/net/irisshaders/iris/mixin/MixinChunkBorderRenderer.java
@@ -0,0 +1,36 @@
+package net.irisshaders.iris.mixin;
+
+import com.llamalad7.mixinextras.injector.WrapWithCondition;
+import com.llamalad7.mixinextras.sugar.Local;
+import com.mojang.blaze3d.vertex.VertexConsumer;
+import net.minecraft.client.renderer.debug.ChunkBorderRenderer;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Slice;
+
+@Mixin(ChunkBorderRenderer.class)
+public class MixinChunkBorderRenderer {
+	@WrapWithCondition(
+		method = "render",
+		at = @At(value = "INVOKE", target = "Lcom/mojang/blaze3d/vertex/VertexConsumer;endVertex()V"),
+		slice = @Slice(
+			from = @At(value = "INVOKE", target = "Lcom/mojang/blaze3d/vertex/PoseStack$Pose;pose()Lorg/joml/Matrix4f;"),
+			to = @At(value = "FIELD", target = "Lnet/minecraft/client/renderer/debug/ChunkBorderRenderer;CELL_BORDER:I", ordinal = 0)
+		)
+	)
+	private boolean isCameraChunk(VertexConsumer instance, @Local(ordinal = 0) int k, @Local(ordinal = 1) int l) {
+		return !((k == 0 || k == 16) && (l == 0 || l == 16));
+	}
+
+	@WrapWithCondition(
+		method = "render",
+		at = @At(value = "INVOKE", target = "Lcom/mojang/blaze3d/vertex/VertexConsumer;endVertex()V"),
+		slice = @Slice(
+			from = @At(value = "INVOKE", target = "Lnet/minecraft/client/multiplayer/ClientLevel;getMinBuildHeight()I", ordinal = 1),
+			to = @At(value = "INVOKE", target = "Lnet/minecraft/client/renderer/MultiBufferSource;getBuffer(Lnet/minecraft/client/renderer/RenderType;)Lcom/mojang/blaze3d/vertex/VertexConsumer;", ordinal = 1)
+		)
+	)
+	private boolean isSubChunkBorder(VertexConsumer instance, @Local(ordinal = 0) int k) {
+		return k % 16 != 0;
+	}
+}
diff --git a/common/src/main/resources/mixins.iris.json b/common/src/main/resources/mixins.iris.json
index 9cf26e2834..79ff9c87eb 100644
--- a/common/src/main/resources/mixins.iris.json
+++ b/common/src/main/resources/mixins.iris.json
@@ -17,6 +17,7 @@
     "MixinBooleanState",
     "MixinByteBufferBuilder",
     "MixinChainedJsonException",
+    "MixinChunkBorderRenderer",
     "MixinClientLanguage",
     "MixinClientPacketListener",
     "MixinDebugScreenOverlay",