first step OK that it's to resumed to use L2W in VertexInputStream.

inc/hgl/graph/MaterialRenderList.h

@@ -39,6 +39,10 @@ private:
     DataArray<RenderItem> ri_array;
     uint ri_count;
 
+    bool has_l2w;
+    bool has_mi;
+    VkDeviceSize l2w_buffer_size[4];
+
     void StatMI();
     void Stat();
 
@@ -56,7 +60,7 @@ protected:
 
 public:
 
-    MaterialRenderList(GPUDevice *d,Material *m);
+    MaterialRenderList(GPUDevice *d,bool l2w,Material *m);
     ~MaterialRenderList();
 
     void Add(Renderable *ri,const Matrix4f &mat);

inc/hgl/graph/VKMaterial.h

@@ -69,7 +69,6 @@ public:
             }
 
     const   bool                                hasSet                  (const DescriptorSetType &type)const;
-    const   bool                                hasAssign               ()const;
 
     const   VIL *                               GetDefaultVIL()const;
             VIL *                               CreateVIL(const VILConfig *format_map=nullptr);

inc/hgl/graph/VKMemoryAllocator.h

@@ -35,6 +35,8 @@ public:
     void Free() override {/* DON'T RUN ANY OPERATION.*/}
 
     void Flush(const VkDeviceSize);
+
+    bool Write(const void *source,const uint64 offset,const uint64 size) override;
 };//class VKMemoryAllocator:public AbstractMemoryAllocator
 VK_NAMESPACE_END
 #endif//HGL_GRAPH_VULKAN_MEMORY_ALLOCATOR_INCLUDE

inc/hgl/graph/mtl/UBOCommon.h

@@ -45,15 +45,6 @@ constexpr const ShaderBufferSource SBS_CameraInfo=
 // UBO必须严格指定数组的大小
 // SSBO则不需要，使用[]方式指定为动态大小数组
 
-constexpr const ShaderBufferSource SBS_LocalToWorld=
-{
-    "LocalToWorldData",
-    "l2w",
-
-    R"(
-    mat4 mats[L2W_MAX_COUNT];)"
-};
-
 constexpr const char MaterialInstanceStruct[]="MaterialInstance";
 
 constexpr const ShaderBufferSource SBS_MaterialInstance=