From 635e2a6b2df20ed55264af28f4697812811debd6 Mon Sep 17 00:00:00 2001
From: ousttrue <ousttrue@gmail.com>
Date: Fri, 23 Jan 2026 14:49:02 +0900
Subject: [PATCH] BoneTransformBindingMerger

---
 .../Expression/BoneTransformMerger.cs         | 25 +++++++++++++++++++
 .../Expression/BoneTransformMerger.cs.meta    | 11 ++++++++
 .../Components/Expression/ExpressionMerger.cs |  4 +++
 3 files changed, 40 insertions(+)
 create mode 100644 Packages/VRM10/Runtime/Components/Expression/BoneTransformMerger.cs
 create mode 100644 Packages/VRM10/Runtime/Components/Expression/BoneTransformMerger.cs.meta

diff --git a/Packages/VRM10/Runtime/Components/Expression/BoneTransformMerger.cs b/Packages/VRM10/Runtime/Components/Expression/BoneTransformMerger.cs
new file mode 100644
index 000000000..64134e6e6
--- /dev/null
+++ b/Packages/VRM10/Runtime/Components/Expression/BoneTransformMerger.cs
@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using UnityEngine;
+
+
+namespace UniVRM10
+{
+    internal sealed class BoneTransformBindingMerger
+    {
+        public BoneTransformBindingMerger(Transform root)
+        {
+
+        }
+
+        public void Apply()
+        {
+            throw new NotImplementedException();
+        }
+
+        public void AccumulateValue(VRM10Expression clip, float value)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}
\ No newline at end of file
diff --git a/Packages/VRM10/Runtime/Components/Expression/BoneTransformMerger.cs.meta b/Packages/VRM10/Runtime/Components/Expression/BoneTransformMerger.cs.meta
new file mode 100644
index 000000000..1e48344b2
--- /dev/null
+++ b/Packages/VRM10/Runtime/Components/Expression/BoneTransformMerger.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: fe2bf5e71647b0f4d93ca6c22bb9fb7f
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Packages/VRM10/Runtime/Components/Expression/ExpressionMerger.cs b/Packages/VRM10/Runtime/Components/Expression/ExpressionMerger.cs
index dd54cb70d..45664fed4 100644
--- a/Packages/VRM10/Runtime/Components/Expression/ExpressionMerger.cs
+++ b/Packages/VRM10/Runtime/Components/Expression/ExpressionMerger.cs
@@ -23,6 +23,7 @@ namespace UniVRM10
 
         MorphTargetBindingMerger m_morphTargetBindingMerger;
         MaterialValueBindingMerger m_materialValueBindingMerger;
+        BoneTransformBindingMerger m_boneTransformBindingMerger;
 
 
         public ExpressionMerger(VRM10ObjectExpression expressions, Transform root, bool isPrefabInstance)
@@ -35,6 +36,7 @@ namespace UniVRM10
             m_valueMap = new Dictionary<ExpressionKey, float>(ExpressionKey.Comparer);
             m_morphTargetBindingMerger = new MorphTargetBindingMerger(m_clipMap, root);
             m_materialValueBindingMerger = new MaterialValueBindingMerger(m_clipMap, root, isPrefabInstance);
+            m_boneTransformBindingMerger = new BoneTransformBindingMerger(root);
         }
 
         /// <summary>
@@ -50,6 +52,7 @@ namespace UniVRM10
 
             m_morphTargetBindingMerger.Apply();
             m_materialValueBindingMerger.Apply();
+            m_boneTransformBindingMerger.Apply();
         }
 
         private void AccumulateValue(ExpressionKey key, float value)
@@ -69,6 +72,7 @@ namespace UniVRM10
 
             m_morphTargetBindingMerger.AccumulateValue(key, value);
             m_materialValueBindingMerger.AccumulateValue(clip, value);
+            m_boneTransformBindingMerger.AccumulateValue(clip, value);
         }
 
         public void Dispose()