diff --git a/inc/hgl/graph/PrimitiveCreater.h b/inc/hgl/graph/PrimitiveCreater.h
index f85a09f5..70670e87 100644
--- a/inc/hgl/graph/PrimitiveCreater.h
+++ b/inc/hgl/graph/PrimitiveCreater.h
@@ -25,6 +25,9 @@ namespace hgl
 
         protected:
 
+            GPUDevice *device;
+            const GPUPhysicalDevice *phy_device;
+
             VertexDataManager *vdm;
             RenderResource *db;
 
@@ -49,7 +52,7 @@ namespace hgl
             PrimitiveCreater(VertexDataManager *);
             virtual ~PrimitiveCreater()=default;
 
-            virtual bool                    Init(const uint32 vertices_count);                                          ///<初始化，参数为顶点数量
+            virtual bool                    Init(const uint32 vertices_count,const uint32 index_count,IndexType it=IndexType::ERR);                 ///<初始化，参数为顶点数量
 
             template<typename T> 
                     T *                     AccessVBO(const AnsiString &name)                                           ///<创建一个顶点属性数据缓冲区以及访问器
diff --git a/inc/hgl/graph/VertexDataManager.h b/inc/hgl/graph/VertexDataManager.h
index e486e250..bd4f42d4 100644
--- a/inc/hgl/graph/VertexDataManager.h
+++ b/inc/hgl/graph/VertexDataManager.h
@@ -14,8 +14,8 @@ namespace hgl
 
         protected:
 
-            VIL *           vil;            ///<顶点输入格式列表
-            uint            vi_count;       ///<顶点输入流数量
+            const VIL *     vil;            ///<顶点输入格式列表
+                  uint      vi_count;       ///<顶点输入流数量
             const VIF *     vif_list;       ///<顶点输入格式列表
 
             VkDeviceSize    vbo_max_size;   ///<顶点缓冲区分配空间大小
@@ -35,6 +35,8 @@ namespace hgl
             VertexDataManager(GPUDevice *dev,const VIL *_vil);
             ~VertexDataManager();
 
+                  GPUDevice *   GetDevice       ()const{return device;}                                     ///<取得GPU设备
+
             const VIL *         GetVIL          ()const{return vil;}                                         ///<取得顶点输入格式列表
 
             const VkDeviceSize  GetVBOMaxCount  ()const{return vbo_max_size;}                                ///<取得顶点缓冲区分配的空间最大数量
diff --git a/src/SceneGraph/InlineGeometry.cpp b/src/SceneGraph/InlineGeometry.cpp
index 5e9a3865..141dd8a8 100644
--- a/src/SceneGraph/InlineGeometry.cpp
+++ b/src/SceneGraph/InlineGeometry.cpp
@@ -18,7 +18,7 @@ namespace hgl
             {
                 PrimitiveCreater rc(db,vil);
 
-                if(!rc.Init(4))
+                if(!rc.Init(4,0))
                     return(nullptr);
 
                 AutoDelete<VB2f> vertex=rc.AccessVBO<VB2f>(VAN::Position);
@@ -46,7 +46,7 @@ namespace hgl
 
                 if(rci->radius==0||rci->round_per<=1)      //这是要画矩形
                 {
-                    if(!rc.Init(4))
+                    if(!rc.Init(4,0))
                         return(nullptr);
                     
                     AutoDelete<VB2f> vertex=rc.AccessVBO<VB2f>(VAN::Position);
@@ -60,7 +60,7 @@ namespace hgl
                     if(radius>rci->scope.GetWidth()/2.0f)radius=rci->scope.GetWidth()/2.0f;
                     if(radius>rci->scope.GetHeight()/2.0f)radius=rci->scope.GetHeight()/2.0f;
 
-                    if(!rc.Init(rci->round_per*4))
+                    if(!rc.Init(rci->round_per*4,8))
                         return(nullptr);
                 
                     AutoDelete<VB2f> vertex=rc.AccessVBO<VB2f>(VAN::Position);
@@ -123,12 +123,12 @@ namespace hgl
                 if(cci->has_color)
                 {
                     edge=cci->field_count+1;
-                    if(!rc.Init(cci->field_count+2))return(nullptr);
+                    if(!rc.Init(cci->field_count+2,0))return(nullptr);
                 }
                 else
                 {
                     edge=cci->field_count;
-                    if(!rc.Init(cci->field_count))return(nullptr);
+                    if(!rc.Init(cci->field_count,0))return(nullptr);
                 }
 
                 AutoDelete<VB2f> vertex=rc.AccessVBO<VB2f>(VAN::Position);
@@ -166,7 +166,7 @@ namespace hgl
             {
                 PrimitiveCreater rc(db,vil);
 
-                if(!rc.Init(((pgci->grid_size.Width()+1)+(pgci->grid_size.Height()+1))*2))
+                if(!rc.Init(((pgci->grid_size.Width()+1)+(pgci->grid_size.Height()+1))*2,8))
                     return(nullptr);
 
                 AutoDelete<VB3f> vertex=rc.AccessVBO<VB3f>(VAN::Position);
@@ -221,7 +221,7 @@ namespace hgl
 
                 PrimitiveCreater rc(db,vil);
 
-                if(!rc.Init(4))
+                if(!rc.Init(4,8))
                     return(nullptr);
             
                 rc.WriteVBO(VAN::Position,xy_vertices,sizeof(xy_vertices));
diff --git a/src/SceneGraph/PrimitiveCreater.cpp b/src/SceneGraph/PrimitiveCreater.cpp
index 8ca07e4d..898f42bc 100644
--- a/src/SceneGraph/PrimitiveCreater.cpp
+++ b/src/SceneGraph/PrimitiveCreater.cpp
@@ -9,6 +9,9 @@ namespace hgl
     {
         PrimitiveCreater::PrimitiveCreater(RenderResource *sdb,const VIL *v)
         {
+            device=sdb->GetDevice();
+            phy_device=device->GetPhysicalDevice();
+
             db              =sdb;
             vil             =v;
 
@@ -18,18 +21,39 @@ namespace hgl
 
         PrimitiveCreater::PrimitiveCreater(VertexDataManager *_vdm)
         {
+            device=_vdm->GetDevice();
+            phy_device=device->GetPhysicalDevice();
+
             vdm=_vdm;
             vil=vdm->GetVIL();
 
             vertices_number =0;
             ibo             =nullptr;
+
+
         }
 
-        bool PrimitiveCreater::Init(const uint32 count)
+        bool PrimitiveCreater::Init(const uint32 vertex_count,const uint32 index_count,IndexType it)
         {
-            if(count<=0)return(false);
+            if(vertex_count<=0)return(false);
 
-            vertices_number=count;
+            vertices_number=vertex_count;
+
+            if(index_count>0)
+            {
+                if(it==IndexType::ERR)
+                {
+                    if(vertex_count<=0xFFFF)
+                        it=IndexType::U16;
+                    else
+                        it=IndexType::U32;
+                }
+
+                ibo=db->CreateIBO(it,index_count);
+                if(!ibo)return(false);
+
+                ibo->Map();
+            }
 
             return(true);
         }
diff --git a/src/SceneGraph/Vulkan/VKDeviceCreater.cpp b/src/SceneGraph/Vulkan/VKDeviceCreater.cpp
index d3b0cb63..f2050b10 100644
--- a/src/SceneGraph/Vulkan/VKDeviceCreater.cpp
+++ b/src/SceneGraph/Vulkan/VKDeviceCreater.cpp
@@ -70,6 +70,9 @@ namespace
 
 //            VK_EXT_SAMPLER_FILTER_MINMAX_EXTENSION_NAME,
 
+            VK_EXT_INDEX_TYPE_UINT8_EXTENSION_NAME,
+            VK_KHR_INDEX_TYPE_UINT8_EXTENSION_NAME,
+
             VK_KHR_SPIRV_1_4_EXTENSION_NAME,
         };