1 files changed, 11 insertions, 1 deletions
diff --git a/src/main/java/me/shedaniel/rei/api/OptimalEntryStack.java b/src/main/java/me/shedaniel/rei/api/OptimalEntryStack.java
index a7a4a4f04..8f7c2bf39 100644
--- a/src/main/java/me/shedaniel/rei/api/OptimalEntryStack.java
+++ b/src/main/java/me/shedaniel/rei/api/OptimalEntryStack.java
@@ -24,15 +24,25 @@
 package me.shedaniel.rei.api;
 
 import me.shedaniel.math.Rectangle;
+import net.minecraft.client.render.VertexConsumerProvider;
 import net.minecraft.client.util.math.MatrixStack;
 import org.jetbrains.annotations.ApiStatus;
 
 @ApiStatus.Internal
 public interface OptimalEntryStack {
+    static int groupingHashFrom(EntryStack stack) {
+        if (stack instanceof OptimalEntryStack) return ((OptimalEntryStack) stack).groupingHash();
+        return stack.getClass().hashCode();
+    }
+    
+    default int groupingHash() {
+        return getClass().hashCode();
+    }
+    
     default void optimisedRenderStart(MatrixStack matrices, float delta) {
     }
     
-    default void optimisedRenderBase(MatrixStack matrices, Rectangle bounds, int mouseX, int mouseY, float delta) {
+    default void optimisedRenderBase(MatrixStack matrices, VertexConsumerProvider.Immediate immediate, Rectangle bounds, int mouseX, int mouseY, float delta) {
     }
     
     default void optimisedRenderOverlay(MatrixStack matrices, Rectangle bounds, int mouseX, int mouseY, float delta) {