diff --git a/api/UniGLTF.MeshImporter.MeshContext.html b/api/UniGLTF.MeshImporter.MeshContext.html
index 34a214ba5..db00abac6 100644
--- a/api/UniGLTF.MeshImporter.MeshContext.html
+++ b/api/UniGLTF.MeshImporter.MeshContext.html
@@ -93,7 +93,7 @@
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext__ctor_System_String_System_Int32_.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext.%23ctor(System.String%2CSystem.Int32)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
   </span>
   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L90">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L91">View Source</a>
   </span>
   <a id="UniGLTF_MeshImporter_MeshContext__ctor_" data-uid="UniGLTF.MeshImporter.MeshContext.#ctor*"></a>
   <h4 id="UniGLTF_MeshImporter_MeshContext__ctor_System_String_System_Int32_" data-uid="UniGLTF.MeshImporter.MeshContext.#ctor(System.String,System.Int32)">MeshContext(String, Int32)</h4>
@@ -132,7 +132,7 @@
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext_BlendShapes.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext.BlendShapes%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
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   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L72">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L73">View Source</a>
   </span>
   <a id="UniGLTF_MeshImporter_MeshContext_BlendShapes_" data-uid="UniGLTF.MeshImporter.MeshContext.BlendShapes*"></a>
   <h4 id="UniGLTF_MeshImporter_MeshContext_BlendShapes" data-uid="UniGLTF.MeshImporter.MeshContext.BlendShapes">BlendShapes</h4>
@@ -162,7 +162,7 @@
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext_BoneWeights.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext.BoneWeights%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
   </span>
   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L63">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L64">View Source</a>
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   <a id="UniGLTF_MeshImporter_MeshContext_BoneWeights_" data-uid="UniGLTF.MeshImporter.MeshContext.BoneWeights*"></a>
   <h4 id="UniGLTF_MeshImporter_MeshContext_BoneWeights" data-uid="UniGLTF.MeshImporter.MeshContext.BoneWeights">BoneWeights</h4>
@@ -192,7 +192,7 @@
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext_Colors.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext.Colors%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
   </span>
   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L60">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L61">View Source</a>
   </span>
   <a id="UniGLTF_MeshImporter_MeshContext_Colors_" data-uid="UniGLTF.MeshImporter.MeshContext.Colors*"></a>
   <h4 id="UniGLTF_MeshImporter_MeshContext_Colors" data-uid="UniGLTF.MeshImporter.MeshContext.Colors">Colors</h4>
@@ -222,7 +222,7 @@
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext_MaterialIndices.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext.MaterialIndices%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
   </span>
   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L69">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L70">View Source</a>
   </span>
   <a id="UniGLTF_MeshImporter_MeshContext_MaterialIndices_" data-uid="UniGLTF.MeshImporter.MeshContext.MaterialIndices*"></a>
   <h4 id="UniGLTF_MeshImporter_MeshContext_MaterialIndices" data-uid="UniGLTF.MeshImporter.MeshContext.MaterialIndices">MaterialIndices</h4>
@@ -252,7 +252,7 @@
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext_name.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext.name%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
   </span>
   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L40">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L41">View Source</a>
   </span>
   <a id="UniGLTF_MeshImporter_MeshContext_name_" data-uid="UniGLTF.MeshImporter.MeshContext.name*"></a>
   <h4 id="UniGLTF_MeshImporter_MeshContext_name" data-uid="UniGLTF.MeshImporter.MeshContext.name">name</h4>
@@ -282,7 +282,7 @@
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext_Normals.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext.Normals%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
   </span>
   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L46">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L47">View Source</a>
   </span>
   <a id="UniGLTF_MeshImporter_MeshContext_Normals_" data-uid="UniGLTF.MeshImporter.MeshContext.Normals*"></a>
   <h4 id="UniGLTF_MeshImporter_MeshContext_Normals" data-uid="UniGLTF.MeshImporter.MeshContext.Normals">Normals</h4>
@@ -312,7 +312,7 @@
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext_Positions.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext.Positions%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
   </span>
   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L43">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L44">View Source</a>
   </span>
   <a id="UniGLTF_MeshImporter_MeshContext_Positions_" data-uid="UniGLTF.MeshImporter.MeshContext.Positions*"></a>
   <h4 id="UniGLTF_MeshImporter_MeshContext_Positions" data-uid="UniGLTF.MeshImporter.MeshContext.Positions">Positions</h4>
@@ -342,7 +342,7 @@
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext_SubMeshes.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext.SubMeshes%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
   </span>
   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L66">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L67">View Source</a>
   </span>
   <a id="UniGLTF_MeshImporter_MeshContext_SubMeshes_" data-uid="UniGLTF.MeshImporter.MeshContext.SubMeshes*"></a>
   <h4 id="UniGLTF_MeshImporter_MeshContext_SubMeshes" data-uid="UniGLTF.MeshImporter.MeshContext.SubMeshes">SubMeshes</h4>
@@ -372,7 +372,7 @@
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext_Tangetns.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext.Tangetns%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
   </span>
   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L50">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L51">View Source</a>
   </span>
   <a id="UniGLTF_MeshImporter_MeshContext_Tangetns_" data-uid="UniGLTF.MeshImporter.MeshContext.Tangetns*"></a>
   <h4 id="UniGLTF_MeshImporter_MeshContext_Tangetns" data-uid="UniGLTF.MeshImporter.MeshContext.Tangetns">Tangetns</h4>
@@ -403,7 +403,7 @@ public List&lt;Vector4&gt; Tangetns { get; }</code></pre>
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext_UV.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext.UV%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
   </span>
   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L54">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L55">View Source</a>
   </span>
   <a id="UniGLTF_MeshImporter_MeshContext_UV_" data-uid="UniGLTF.MeshImporter.MeshContext.UV*"></a>
   <h4 id="UniGLTF_MeshImporter_MeshContext_UV" data-uid="UniGLTF.MeshImporter.MeshContext.UV">UV</h4>
@@ -433,7 +433,7 @@ public List&lt;Vector4&gt; Tangetns { get; }</code></pre>
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext_UV2.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext.UV2%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
   </span>
   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L57">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L58">View Source</a>
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   <a id="UniGLTF_MeshImporter_MeshContext_UV2_" data-uid="UniGLTF.MeshImporter.MeshContext.UV2*"></a>
   <h4 id="UniGLTF_MeshImporter_MeshContext_UV2" data-uid="UniGLTF.MeshImporter.MeshContext.UV2">UV2</h4>
@@ -465,7 +465,7 @@ public List&lt;Vector4&gt; Tangetns { get; }</code></pre>
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext_DropUnusedVertices.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext.DropUnusedVertices%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
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   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L495">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L496">View Source</a>
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   <a id="UniGLTF_MeshImporter_MeshContext_DropUnusedVertices_" data-uid="UniGLTF.MeshImporter.MeshContext.DropUnusedVertices*"></a>
   <h4 id="UniGLTF_MeshImporter_MeshContext_DropUnusedVertices" data-uid="UniGLTF.MeshImporter.MeshContext.DropUnusedVertices">DropUnusedVertices()</h4>
@@ -480,7 +480,7 @@ public List&lt;Vector4&gt; Tangetns { get; }</code></pre>
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext_ImportMeshIndependentVertexBuffer_UniGLTF_glTF_UniGLTF_glTFMesh_UniGLTF_IAxisInverter_.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext.ImportMeshIndependentVertexBuffer(UniGLTF.glTF%2CUniGLTF.glTFMesh%2CUniGLTF.IAxisInverter)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
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   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L141">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L142">View Source</a>
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   <a id="UniGLTF_MeshImporter_MeshContext_ImportMeshIndependentVertexBuffer_" data-uid="UniGLTF.MeshImporter.MeshContext.ImportMeshIndependentVertexBuffer*"></a>
   <h4 id="UniGLTF_MeshImporter_MeshContext_ImportMeshIndependentVertexBuffer_UniGLTF_glTF_UniGLTF_glTFMesh_UniGLTF_IAxisInverter_" data-uid="UniGLTF.MeshImporter.MeshContext.ImportMeshIndependentVertexBuffer(UniGLTF.glTF,UniGLTF.glTFMesh,UniGLTF.IAxisInverter)">ImportMeshIndependentVertexBuffer(glTF, glTFMesh, IAxisInverter)</h4>
@@ -525,7 +525,7 @@ glTF 的にはありうる。</p>
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext_ImportMeshSharingVertexBuffer_UniGLTF_glTF_UniGLTF_glTFMesh_UniGLTF_IAxisInverter_.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext.ImportMeshSharingVertexBuffer(UniGLTF.glTF%2CUniGLTF.glTFMesh%2CUniGLTF.IAxisInverter)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
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   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L316">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L317">View Source</a>
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   <a id="UniGLTF_MeshImporter_MeshContext_ImportMeshSharingVertexBuffer_" data-uid="UniGLTF.MeshImporter.MeshContext.ImportMeshSharingVertexBuffer*"></a>
   <h4 id="UniGLTF_MeshImporter_MeshContext_ImportMeshSharingVertexBuffer_UniGLTF_glTF_UniGLTF_glTFMesh_UniGLTF_IAxisInverter_" data-uid="UniGLTF.MeshImporter.MeshContext.ImportMeshSharingVertexBuffer(UniGLTF.glTF,UniGLTF.glTFMesh,UniGLTF.IAxisInverter)">ImportMeshSharingVertexBuffer(glTF, glTFMesh, IAxisInverter)</h4>
@@ -568,7 +568,7 @@ glTF 的にはありうる。</p>
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext_NormalizeBoneWeight_BoneWeight_.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext.NormalizeBoneWeight(BoneWeight)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
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   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L117">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L118">View Source</a>
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   <a id="UniGLTF_MeshImporter_MeshContext_NormalizeBoneWeight_" data-uid="UniGLTF.MeshImporter.MeshContext.NormalizeBoneWeight*"></a>
   <h4 id="UniGLTF_MeshImporter_MeshContext_NormalizeBoneWeight_BoneWeight_" data-uid="UniGLTF.MeshImporter.MeshContext.NormalizeBoneWeight(BoneWeight)">NormalizeBoneWeight(BoneWeight)</h4>
@@ -615,7 +615,7 @@ glTF 的にはありうる。</p>
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext_RenameBlendShape_UniGLTF_glTFMesh_.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext.RenameBlendShape(UniGLTF.glTFMesh)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
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   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L460">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L461">View Source</a>
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   <h4 id="UniGLTF_MeshImporter_MeshContext_RenameBlendShape_UniGLTF_glTFMesh_" data-uid="UniGLTF.MeshImporter.MeshContext.RenameBlendShape(UniGLTF.glTFMesh)">RenameBlendShape(glTFMesh)</h4>
@@ -653,7 +653,7 @@ glTF 的にはありうる。</p>
                     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_MeshContext.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.MeshContext%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A" class="contribution-link">Improve this Doc</a>
                   </li>
                   <li>
-                    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L15" class="contribution-link">View Source</a>
+                    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L16" class="contribution-link">View Source</a>
                   </li>
                 </ul>
               </div>
diff --git a/api/UniGLTF.MeshImporter.html b/api/UniGLTF.MeshImporter.html
index 3849ec957..332799a1e 100644
--- a/api/UniGLTF.MeshImporter.html
+++ b/api/UniGLTF.MeshImporter.html
@@ -93,7 +93,7 @@
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_BuildMeshAsync_VRMShaders_IAwaitCaller_System_Func_System_Int32_Material__UniGLTF_MeshImporter_MeshContext_.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.BuildMeshAsync(VRMShaders.IAwaitCaller%2CSystem.Func%7BSystem.Int32%2CMaterial%7D%2CUniGLTF.MeshImporter.MeshContext)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
   </span>
   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L658">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L662">View Source</a>
   </span>
   <a id="UniGLTF_MeshImporter_BuildMeshAsync_" data-uid="UniGLTF.MeshImporter.BuildMeshAsync*"></a>
   <h4 id="UniGLTF_MeshImporter_BuildMeshAsync_VRMShaders_IAwaitCaller_System_Func_System_Int32_Material__UniGLTF_MeshImporter_MeshContext_" data-uid="UniGLTF.MeshImporter.BuildMeshAsync(VRMShaders.IAwaitCaller,System.Func{System.Int32,Material},UniGLTF.MeshImporter.MeshContext)">BuildMeshAsync(IAwaitCaller, Func&lt;Int32, Material&gt;, MeshImporter.MeshContext)</h4>
@@ -150,7 +150,7 @@
     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter_ReadMesh_UniGLTF_glTF_System_Int32_UniGLTF_IAxisInverter_.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter.ReadMesh(UniGLTF.glTF%2CSystem.Int32%2CUniGLTF.IAxisInverter)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
   </span>
   <span class="small pull-right mobile-hide">
-    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L533">View Source</a>
+    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L534">View Source</a>
   </span>
   <a id="UniGLTF_MeshImporter_ReadMesh_" data-uid="UniGLTF.MeshImporter.ReadMesh*"></a>
   <h4 id="UniGLTF_MeshImporter_ReadMesh_UniGLTF_glTF_System_Int32_UniGLTF_IAxisInverter_" data-uid="UniGLTF.MeshImporter.ReadMesh(UniGLTF.glTF,System.Int32,UniGLTF.IAxisInverter)">ReadMesh(glTF, Int32, IAxisInverter)</h4>
@@ -213,7 +213,7 @@
                     <a href="https://github.com/vrm-c/UniVRM/new/master/apiSpec/new?filename=UniGLTF_MeshImporter.md&amp;value=---%0Auid%3A%20UniGLTF.MeshImporter%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A" class="contribution-link">Improve this Doc</a>
                   </li>
                   <li>
-                    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L11" class="contribution-link">View Source</a>
+                    <a href="https://github.com/vrm-c/UniVRM/blob/master/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshImporter.cs/#L12" class="contribution-link">View Source</a>
                   </li>
                 </ul>
               </div>
diff --git a/manifest.json b/manifest.json
index 2701b25da..39d181515 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1404,7 +1404,7 @@
       "output": {
         ".html": {
           "relative_path": "api/UniGLTF.MeshImporter.MeshContext.html",
-          "hash": "mR6GFF2ZeYyv2PoVYEeT/sPWgAU3nZrSkuVBPvaB8As="
+          "hash": "pV4RjC9MqzN4soJK7xFP2QIBX2l86NSbLurfVXNFzsE="
         }
       },
       "is_incremental": false,
@@ -1416,7 +1416,7 @@
       "output": {
         ".html": {
           "relative_path": "api/UniGLTF.MeshImporter.html",
-          "hash": "4qfK0AtcAWIOV1zIN5sDQu6624XMn/NXgqE1dkJ5Ss0="
+          "hash": "feMIEdxQaZhZO00iFIGkzdBupt0DKsT4aQj9fD58cQU="
         }
       },
       "is_incremental": false,