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diff --git a/Assets/VRM10_Samples/VRM10Viewer/Motions/BvhMotion.cs b/Assets/VRM10_Samples/VRM10Viewer/Motions/BvhMotion.cs
index ffb925bb9..0cdac4631 100644
--- a/Assets/VRM10_Samples/VRM10Viewer/Motions/BvhMotion.cs
+++ b/Assets/VRM10_Samples/VRM10Viewer/Motions/BvhMotion.cs
@@ -28,7 +28,10 @@ namespace UniVRM10.VRM10Viewer
             // create SkinnedMesh for bone visualize
             var animator = m_context.Root.GetComponent<Animator>();
             m_boxMan = SkeletonMeshUtility.CreateRenderer(animator);
-            var material = new Material(Shader.Find("Standard"));
+            var tmpPrimitive = GameObject.CreatePrimitive(PrimitiveType.Quad);
+            var defaultMaterial = tmpPrimitive.GetComponent<Renderer>().sharedMaterial;
+            var material = new Material(defaultMaterial);
+            GameObject.Destroy(tmpPrimitive);
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             var mesh = BoxMan.sharedMesh;
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diff --git a/Assets/VRM10_Samples/VRM10Viewer/VRM10TargetMover.cs b/Assets/VRM10_Samples/VRM10Viewer/VRM10TargetMover.cs
index 7a37f1349..9311c436f 100644
--- a/Assets/VRM10_Samples/VRM10Viewer/VRM10TargetMover.cs
+++ b/Assets/VRM10_Samples/VRM10Viewer/VRM10TargetMover.cs
@@ -1,5 +1,4 @@
 using System.Collections;
-using System.Collections.Generic;
 using UnityEngine;
 
 
diff --git a/Assets/VRM10_Samples/VRM10Viewer/VRM10Viewer.unity b/Assets/VRM10_Samples/VRM10Viewer/VRM10Viewer.unity
index 54855ea3b..8e51e00c9 100644
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@@ -2638,6 +2366,19 @@ MonoBehaviour:
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@@ -5617,93 +5358,6 @@ CanvasRenderer:
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@@ -6033,6 +5687,7 @@ GameObject:
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+  - component: {fileID: 1629460663}
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@@ -6121,6 +5776,39 @@ Transform:
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+--- !u!114 &1629460663
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@@ -6828,7 +6516,6 @@ MonoBehaviour:
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   m_enableAutoBlink: {fileID: 634488422}
   m_enableAutoExpression: {fileID: 1767738855}
-  m_useUrpMaterial: {fileID: 1438613465}
   m_useAsync: {fileID: 602093299}
   m_target: {fileID: 802105000}
   m_motion: {fileID: 4900000, guid: 08df5151e71aed748b13547492fb8b9a, type: 3}
@@ -7771,86 +7458,6 @@ CanvasRenderer:
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@@ -7942,6 +7549,7 @@ GameObject:
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   - component: {fileID: 2141451817}
+  - component: {fileID: 2141451819}
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   m_TagString: Untagged
@@ -8026,3 +7634,23 @@ Transform:
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   m_RootOrder: 3
   m_LocalEulerAnglesHint: {x: 50, y: -210, z: 0}
+--- !u!114 &2141451819
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diff --git a/Assets/VRM10_Samples/VRM10Viewer/VRM10ViewerUI.cs b/Assets/VRM10_Samples/VRM10Viewer/VRM10ViewerUI.cs
index 1a63407ee..91595b59f 100644
--- a/Assets/VRM10_Samples/VRM10Viewer/VRM10ViewerUI.cs
+++ b/Assets/VRM10_Samples/VRM10Viewer/VRM10ViewerUI.cs
@@ -41,9 +41,6 @@ namespace UniVRM10.VRM10Viewer
         [SerializeField]
         Toggle m_enableAutoExpression = default;
 
-        [SerializeField]
-        Toggle m_useUrpMaterial = default;
-
         [SerializeField]
         Toggle m_useAsync = default;
 
@@ -269,7 +266,6 @@ namespace UniVRM10.VRM10Viewer
             m_enableLipSync = toggles.First(x => x.name == "EnableLipSync");
             m_enableAutoBlink = toggles.First(x => x.name == "EnableAutoBlink");
             m_enableAutoExpression = toggles.First(x => x.name == "EnableAutoExpression");
-            m_useUrpMaterial = toggles.First(x => x.name == "UseUrpMaterial");
             m_useAsync = toggles.First(x => x.name == "UseAsync");
 
 #if UNITY_2022_3_OR_NEWER
@@ -544,8 +540,7 @@ namespace UniVRM10.VRM10Viewer
                 var vrm10Instance = await Vrm10.LoadPathAsync(path,
                     canLoadVrm0X: true,
                     showMeshes: false,
-                    awaitCaller: m_useAsync.enabled ? (IAwaitCaller)new RuntimeOnlyAwaitCaller() : (IAwaitCaller)new ImmediateCaller(),
-                    materialGenerator: GetVrmMaterialDescriptorGenerator(m_useUrpMaterial.isOn),
+                    awaitCaller: m_useAsync.enabled ? new RuntimeOnlyAwaitCaller() : new ImmediateCaller(),
                     vrmMetaInformationCallback: m_texts.UpdateMeta,
                     ct: cancellationToken);
                 if (cancellationToken.IsCancellationRequested)
diff --git a/Assets/VRM10_Samples/VRM10Viewer/VRM10VisualPrimitive.cs b/Assets/VRM10_Samples/VRM10Viewer/VRM10VisualPrimitive.cs
new file mode 100644
index 000000000..05ea35def
--- /dev/null
+++ b/Assets/VRM10_Samples/VRM10Viewer/VRM10VisualPrimitive.cs
@@ -0,0 +1,27 @@
+using UnityEngine;
+
+namespace UniVRM10.VRM10Viewer
+{
+    /// <summary>
+    /// Built-in RP と URP の差異を楽に吸収してプリミティブを表示するためのクラス
+    /// </summary>
+    public class VRM10VisualPrimitive : MonoBehaviour
+    {
+        [SerializeField] private PrimitiveType _primitiveType;
+
+        public PrimitiveType PrimitiveType
+        {
+            get => _primitiveType;
+            set => _primitiveType = value;
+        }
+
+        private void Start()
+        {
+            var visual = GameObject.CreatePrimitive(_primitiveType);
+            visual.transform.SetParent(transform);
+            visual.transform.localPosition = Vector3.zero;
+            visual.transform.localRotation = Quaternion.identity;
+            visual.transform.localScale = Vector3.one;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Assets/VRM10_Samples/VRM10Viewer/VRM10VisualPrimitive.cs.meta b/Assets/VRM10_Samples/VRM10Viewer/VRM10VisualPrimitive.cs.meta
new file mode 100644
index 000000000..d99639d67
--- /dev/null
+++ b/Assets/VRM10_Samples/VRM10Viewer/VRM10VisualPrimitive.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 1e6b73d090be404cad1a0e9839366ce2
+timeCreated: 1721736320
\ No newline at end of file
diff --git a/ProjectSettings/GraphicsSettings.asset b/ProjectSettings/GraphicsSettings.asset
index 168c212cf..2376bed17 100644
--- a/ProjectSettings/GraphicsSettings.asset
+++ b/ProjectSettings/GraphicsSettings.asset
@@ -45,7 +45,8 @@ GraphicsSettings:
   m_PreloadShadersBatchTimeLimit: -1
   m_SpritesDefaultMaterial: {fileID: 10754, guid: 0000000000000000f000000000000000,
     type: 0}
-  m_CustomRenderPipeline: {fileID: 0}
+  m_CustomRenderPipeline: {fileID: 11400000, guid: a2530151e324c8a4092b54aec3a17066,
+    type: 2}
   m_TransparencySortMode: 0
   m_TransparencySortAxis: {x: 0, y: 0, z: 1}
   m_DefaultRenderingPath: 1
@@ -69,7 +70,7 @@ GraphicsSettings:
   m_DefaultRenderingLayerMask: 1
   m_LogWhenShaderIsCompiled: 0
   m_SRPDefaultSettings:
-    UnityEngine.Rendering.Universal.UniversalRenderPipeline: {fileID: 11400000, guid: e1da13a6b8c25524d927be386f14513c,
+    UnityEngine.Rendering.Universal.UniversalRenderPipeline: {fileID: 11400000, guid: 46a76356a8d93364bab3c841a0826a14,
       type: 2}
   m_CameraRelativeLightCulling: 0
   m_CameraRelativeShadowCulling: 0