Multiple tweaks and fixes to the recent changes in the client refactor PR: Part 2 (#8854)

* Add getter for the component names in an unbaked geometry
* Fix render type hint not being copied in BlockGeometryBakingContext
* Ensure BlockRenderDispatches's renderSingleBlock uses the correct buffer

src/main/java/net/minecraftforge/client/ForgeHooksClient.java

@@ -953,6 +953,20 @@ public class ForgeHooksClient
         return MinecraftForge.EVENT_BUS.post(event) ? "" : event.getMessage();
     }
 
+    /**
+     * Mimics the behavior of {@link net.minecraft.client.renderer.ItemBlockRenderTypes#getRenderType(BlockState, boolean)}
+     * for the input {@link RenderType}.
+     */
+    @NotNull
+    public static RenderType getEntityRenderType(RenderType chunkRenderType, boolean fabulous)
+    {
+        if (chunkRenderType != RenderType.translucent())
+            return Sheets.cutoutBlockSheet();
+        if (!Minecraft.useShaderTransparency())
+            return Sheets.translucentCullBlockSheet();
+        return fabulous ? Sheets.translucentCullBlockSheet() : Sheets.translucentItemSheet();
+    }
+
     @Mod.EventBusSubscriber(value = Dist.CLIENT, modid="forge", bus= Mod.EventBusSubscriber.Bus.MOD)
     public static class ClientEvents
     {

src/main/java/net/minecraftforge/client/model/CompositeModel.java

@@ -125,6 +125,12 @@ public class CompositeModel implements IUnbakedGeometry<CompositeModel>
         return textures;
     }
 
+    @Override
+    public Set<String> getConfigurableComponentNames()
+    {
+        return children.keySet();
+    }
+
     public static class Baked implements IDynamicBakedModel
     {
         private final boolean isAmbientOcclusion;

src/main/java/net/minecraftforge/client/model/geometry/BlockGeometryBakingContext.java

@@ -147,6 +147,7 @@ public class BlockGeometryBakingContext implements IGeometryBakingContext
         this.customGeometry = other.customGeometry;
         this.rootTransform = other.rootTransform;
         this.visibilityData.copyFrom(other.visibilityData);
+        this.renderTypeHint = other.renderTypeHint;
     }
 
     public Collection<Material> getTextureDependencies(Function<ResourceLocation, UnbakedModel> modelGetter, Set<Pair<String, String>> missingTextureErrors)

src/main/java/net/minecraftforge/client/model/geometry/IUnbakedGeometry.java

@@ -32,4 +32,12 @@ public interface IUnbakedGeometry<T extends IUnbakedGeometry<T>>
     BakedModel bake(IGeometryBakingContext context, ModelBakery bakery, Function<Material, TextureAtlasSprite> spriteGetter, ModelState modelState, ItemOverrides overrides, ResourceLocation modelLocation);
 
     Collection<Material> getMaterials(IGeometryBakingContext context, Function<ResourceLocation, UnbakedModel> modelGetter, Set<Pair<String, String>> missingTextureErrors);
+
+    /**
+     * {@return a set of all the components whose visibility may be configured via {@link IGeometryBakingContext}}
+     */
+    default Set<String> getConfigurableComponentNames()
+    {
+        return Set.of();
+    }
 }

src/main/java/net/minecraftforge/client/model/obj/ObjModel.java

@@ -40,6 +40,8 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
@@ -67,6 +69,8 @@ public class ObjModel extends SimpleUnbakedGeometry<ObjModel>
     };
 
     private final Map<String, ModelGroup> parts = Maps.newHashMap();
+    private final Set<String> rootComponentNames = Collections.unmodifiableSet(parts.keySet());
+    private Set<String> allComponentNames;
 
     private final List<Vector3f> positions = Lists.newArrayList();
     private final List<Vec2> texCoords = Lists.newArrayList();
@@ -360,6 +364,22 @@ public class ObjModel extends SimpleUnbakedGeometry<ObjModel>
         return combined;
     }
 
+    public Set<String> getRootComponentNames()
+    {
+        return rootComponentNames;
+    }
+
+    @Override
+    public Set<String> getConfigurableComponentNames()
+    {
+        if (allComponentNames != null)
+            return allComponentNames;
+        var names = new HashSet<String>();
+        for (var group : parts.values())
+            group.addNamesRecursively(names);
+        return allComponentNames = Collections.unmodifiableSet(names);
+    }
+
     private Pair<BakedQuad, Direction> makeQuad(int[][] indices, int tintIndex, Vector4f colorTint, Vector4f ambientColor, TextureAtlasSprite texture, Transformation transform)
     {
         boolean needsNormalRecalculation = false;
@@ -553,6 +573,11 @@ public class ObjModel extends SimpleUnbakedGeometry<ObjModel>
                                  : Stream.of())
                          .collect(Collectors.toSet());
         }
+
+        protected void addNamesRecursively(Set<String> names)
+        {
+            names.add(name());
+        }
     }
 
     public class ModelGroup extends ModelObject
@@ -595,6 +620,14 @@ public class ObjModel extends SimpleUnbakedGeometry<ObjModel>
                 combined.addAll(part.getTextures(owner, modelGetter, missingTextureErrors));
             return combined;
         }
+
+        @Override
+        protected void addNamesRecursively(Set<String> names)
+        {
+            super.addNamesRecursively(names);
+            for (ModelObject object : parts.values())
+                object.addNamesRecursively(names);
+        }
     }
 
     private class ModelMesh