From 3c3caf3b50d61c64692b1620e8efb0f5ff52032f Mon Sep 17 00:00:00 2001
From: IMS212 <ims@irisshaders.dev>
Date: Tue, 27 Aug 2024 13:33:02 -0700
Subject: [PATCH] Fix block ID mapping

---
 .../iris/shaderpack/materialmap/BlockMaterialMapping.java       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/src/main/java/net/irisshaders/iris/shaderpack/materialmap/BlockMaterialMapping.java b/common/src/main/java/net/irisshaders/iris/shaderpack/materialmap/BlockMaterialMapping.java
index 8f5f2c4e7b..88f78d9074 100644
--- a/common/src/main/java/net/irisshaders/iris/shaderpack/materialmap/BlockMaterialMapping.java
+++ b/common/src/main/java/net/irisshaders/iris/shaderpack/materialmap/BlockMaterialMapping.java
@@ -23,7 +23,7 @@
 public class BlockMaterialMapping {
 	public static Object2IntMap<BlockState> createBlockStateIdMap(Int2ObjectLinkedOpenHashMap<List<BlockEntry>> blockPropertiesMap, Int2ObjectLinkedOpenHashMap<List<TagEntry>> tagPropertiesMap) {
 		Object2IntMap<BlockState> blockStateIds = new Object2IntLinkedOpenHashMap<>();
-
+		blockStateIds.defaultReturnValue(-1);
 		blockPropertiesMap.forEach((intId, entries) -> {
 			for (BlockEntry entry : entries) {
 				addBlockStates(entry, blockStateIds, intId);