diff --git a/inc/hgl/graph/VKMaterialInstance.h b/inc/hgl/graph/VKMaterialInstance.h
index 16b7bcab..156c6d90 100644
--- a/inc/hgl/graph/VKMaterialInstance.h
+++ b/inc/hgl/graph/VKMaterialInstance.h
@@ -4,14 +4,49 @@
 #include<hgl/graph/VKMaterial.h>
 
 VK_NAMESPACE_BEGIN
+
+/*
+    layout(location=0) in vec4 Position;
+    layout(location=1) in vec3 Normal;
+ 
+    layout(location=?) in uint MaterialID
+
+    #define MI_MAX_COUNT ???                //该值由引擎根据 UBORange/sizeof(MaterialInstance) 计算出来
+
+    struct MaterialInstance                 //这部分数据，即为材质实例的具体数据，每一个材质实例类负责提供具体数据。由RenderList合并成一整个UBO
+    {
+        vec4 BaseColor;
+        vec4 Emissive;
+        vec4 ARM;
+    };
+
+    layout(set=?,binding=?) uniform Material
+    {
+        MaterialInstance mi[MI_MAX_COUNT]
+    }mtl;
+
+    void main()
+    {
+        MaterialInstance mi=mtl.mi[(MaterialID>=MI_MAX_COUNT)?:0:MaterialID];   //如果超出范围则使用0号材质实例数据
+
+        vec4 BaseColor  =mi.BaseColor;
+        vec4 Emissive   =mi.Emissive;
+
+        float AO        =mi.ARM.x;
+        float Roughness =mi.ARM.y;
+        float Metallic  =mi.ARM.z;
+
+*/
+
+/**
+* 材质实例类
+*/
 class MaterialInstance
 {
     Material *material;
 
     VIL *vil;
 
-    MaterialParameters *mp_per_mi;       ///<材质实例独有参数，对应PerMaterial合集
-
 private:
 
     friend class GPUDevice;
@@ -25,14 +60,7 @@ public:
     Material *GetMaterial(){return material;}
 
     const VIL *GetVIL()const{return vil;}
-    MaterialParameters *GetMP(){return mp_per_mi;}
-    MaterialParameters *GetMP(const DescriptorSetType &type)
-    {
-        if(type==DescriptorSetType::PerMaterial)
-            return mp_per_mi;
-        else
-            return material->GetMP(type);
-    }
+    MaterialParameters *GetMP(const DescriptorSetType &type){return material->GetMP(type);}
     
     bool BindUBO(const DescriptorSetType &type,const AnsiString &name,DeviceBuffer *ubo,bool dynamic=false);
     bool BindSSBO(const DescriptorSetType &type,const AnsiString &name,DeviceBuffer *ubo,bool dynamic=false);
diff --git a/src/SceneGraph/Vulkan/VKMaterialInstance.cpp b/src/SceneGraph/Vulkan/VKMaterialInstance.cpp
index cc9fa7a8..82556b41 100644
--- a/src/SceneGraph/Vulkan/VKMaterialInstance.cpp
+++ b/src/SceneGraph/Vulkan/VKMaterialInstance.cpp
@@ -20,14 +20,6 @@ MaterialInstance::MaterialInstance(Material *mtl,VIL *v)
     material=mtl;
 
     vil=v;
-
-    mp_per_mi=mtl->GetMP(DescriptorSetType::PerMaterial);
-
-    /*
-        由于PerMaterial的属性每个MaterialInstance不一样，
-        所以理论上需要在这里分配属于它自己的MP做绑定记录
-
-    */
 }
 
 bool MaterialInstance::BindUBO(const DescriptorSetType &type,const AnsiString &name,DeviceBuffer *ubo,bool dynamic)