diff --git a/example/Vulkan/fourth_triangle.cpp b/example/Vulkan/fourth_triangle.cpp
new file mode 100644
index 00000000..eed65cf6
--- /dev/null
+++ b/example/Vulkan/fourth_triangle.cpp
@@ -0,0 +1,134 @@
+// fourth_triangle
+// 该范例主要演示使用材质实例传递颜色参数绘制三角形
+
+#include"VulkanAppFramework.h"
+#include<hgl/math/Math.h>
+#include<hgl/filesystem/FileSystem.h>
+#include<hgl/graph/VKRenderablePrimitiveCreater.h>
+#include<hgl/graph/mtl/2d/Material2DConfig.h>
+#include<hgl/graph/RenderList.h>
+
+using namespace hgl;
+using namespace hgl::graph;
+
+constexpr uint32_t SCREEN_WIDTH=1024;
+constexpr uint32_t SCREEN_HEIGHT=1024;
+
+constexpr uint32_t VERTEX_COUNT=3;
+
+constexpr float position_data[VERTEX_COUNT*2]=
+{
+     0.0,  0.0,
+    -0.1,  0.9,
+     0.1,  0.9
+};
+
+constexpr float color_data[3][4]=
+{
+    {1,0,0,1},
+    {0,1,0,1},
+    {0,0,1,1}
+};
+
+class TestApp:public VulkanApplicationFramework
+{
+private:
+
+    SceneNode           render_root;
+    RenderList *        render_list         =nullptr;
+
+    MaterialInstance *  material_instance   =nullptr;
+    Renderable *        render_obj          =nullptr;
+
+    Pipeline *          pipeline            =nullptr;
+
+private:
+
+    bool InitMaterial()
+    {
+        {
+            mtl::Material2DConfig cfg("PureColor2D");
+
+            cfg.coordinate_system=CoordinateSystem2D::NDC;
+            cfg.local_to_world=true;
+
+            AutoDelete<mtl::MaterialCreateInfo> mci=mtl::CreatePureColor2D(&cfg);
+
+            material_instance=db->CreateMaterialInstance(mci);
+        }
+
+        if(!material_instance)
+            return(false);
+            
+//        pipeline=db->CreatePipeline(material_instance,sc_render_target,OS_TEXT("res/pipeline/solid2d"));
+        pipeline=CreatePipeline(material_instance,InlinePipeline::Solid2D,Prim::Triangles);     //等同上一行，为Framework重载，默认使用swapchain的render target
+        
+        return pipeline;
+    }
+
+    bool InitVBO()
+    {
+        RenderablePrimitiveCreater rpc(db,VERTEX_COUNT);
+
+        if(!rpc.SetVBO(VAN::Position,   VF_V2F, position_data))return(false);
+        if(!rpc.SetVBO(VAN::Color,      VF_V4F, color_data   ))return(false);
+        
+        render_obj=rpc.Create(material_instance,pipeline);
+
+        if(!render_obj)
+            return(false);
+        
+        for(uint i=0;i<12;i++)
+            render_root.CreateSubNode(rotate(deg2rad(30*i),Vector3f(0,0,1)),render_obj);
+
+        render_root.RefreshMatrix();
+
+        render_list->Expend(&render_root);
+
+        return(true);
+    }
+
+public:
+
+    ~TestApp()
+    {
+        SAFE_CLEAR(render_list);
+    }
+
+    bool Init()
+    {
+        if(!VulkanApplicationFramework::Init(SCREEN_WIDTH,SCREEN_HEIGHT))
+            return(false);
+
+        render_list=new RenderList(device);
+
+        if(!InitMaterial())
+            return(false);
+
+        if(!InitVBO())
+            return(false);
+
+        BuildCommandBuffer(render_list);
+
+        return(true);
+    }
+
+    void Resize(int w,int h)override
+    {
+        VulkanApplicationFramework::Resize(w,h);
+
+        BuildCommandBuffer(render_list);
+    }
+};//class TestApp:public VulkanApplicationFramework
+
+int main(int,char **)
+{
+    TestApp app;
+
+    if(!app.Init())
+        return(-1);
+
+    while(app.Run());
+
+    return 0;
+}
diff --git a/src/SceneGraph/Vulkan/VKRenderResource.cpp b/src/SceneGraph/Vulkan/VKRenderResource.cpp
index 9af0be56..3f0a5877 100644
--- a/src/SceneGraph/Vulkan/VKRenderResource.cpp
+++ b/src/SceneGraph/Vulkan/VKRenderResource.cpp
@@ -49,7 +49,7 @@ IndexBuffer *RenderResource::CreateIBO(IndexType index_type,uint32_t count,const
     rm_buffers.Add(buf);
     return(buf);
 }
-        
+
 MaterialInstance *RenderResource::CreateMaterialInstance(Material *mtl,const VILConfig *vil_cfg)
 {
     if(!mtl)return(nullptr);