diff --git a/assets/resources/materials/color_sdf2d.mtl b/assets/resources/materials/color_sdf2d.mtl
new file mode 100644
index 0000000..a674cc2
--- /dev/null
+++ b/assets/resources/materials/color_sdf2d.mtl
@@ -0,0 +1,12 @@
+{
+  "__type__": "cc.Material",
+  "_name": "",
+  "_objFlags": 0,
+  "_native": "",
+  "_effectAsset": {
+    "__uuid__": "c8f66d17-351a-48da-a12c-0212d28575c4"
+  },
+  "_techIdx": 0,
+  "_defines": [],
+  "_props": []
+}
diff --git a/assets/resources/materials/color_sdf2d.mtl.meta b/assets/resources/materials/color_sdf2d.mtl.meta
new file mode 100644
index 0000000..d9f7dc7
--- /dev/null
+++ b/assets/resources/materials/color_sdf2d.mtl.meta
@@ -0,0 +1,11 @@
+{
+  "ver": "1.0.21",
+  "importer": "material",
+  "imported": true,
+  "uuid": "850a900c-3c24-42f7-94ee-688c31fedea9",
+  "files": [
+    ".json"
+  ],
+  "subMetas": {},
+  "userData": {}
+}
diff --git a/assets/resources/scenes/roundbox.scene b/assets/resources/scenes/roundbox.scene
index 66a204a..e48ab10 100644
--- a/assets/resources/scenes/roundbox.scene
+++ b/assets/resources/scenes/roundbox.scene
@@ -58,7 +58,7 @@
     },
     "autoReleaseAssets": false,
     "_globals": {
-      "__id__": 22
+      "__id__": 25
     },
     "_id": "64bd0402-59ce-4670-ae7d-24b450f09bb9"
   },
@@ -269,18 +269,21 @@
       },
       {
         "__id__": 16
+      },
+      {
+        "__id__": 19
       }
     ],
     "_active": true,
     "_components": [
       {
-        "__id__": 19
+        "__id__": 22
       },
       {
-        "__id__": 20
+        "__id__": 23
       },
       {
-        "__id__": 21
+        "__id__": 24
       }
     ],
     "_prefab": null,
@@ -372,7 +375,7 @@
     "_priority": 1073741824,
     "_fov": 45,
     "_fovAxis": 0,
-    "_orthoHeight": 459.1304347826087,
+    "_orthoHeight": 360,
     "_near": 1,
     "_far": 2000,
     "_color": {
@@ -716,6 +719,115 @@
     "_rightBottom": true,
     "_id": "f2CeSLb09FPaKE976Tc3TG"
   },
+  {
+    "__type__": "cc.Node",
+    "_name": "Label",
+    "_objFlags": 0,
+    "__editorExtras__": {},
+    "_parent": {
+      "__id__": 7
+    },
+    "_children": [],
+    "_active": true,
+    "_components": [
+      {
+        "__id__": 20
+      },
+      {
+        "__id__": 21
+      }
+    ],
+    "_prefab": null,
+    "_lpos": {
+      "__type__": "cc.Vec3",
+      "x": -69.187,
+      "y": 171.008,
+      "z": 0
+    },
+    "_lrot": {
+      "__type__": "cc.Quat",
+      "x": 0,
+      "y": 0,
+      "z": 0,
+      "w": 1
+    },
+    "_lscale": {
+      "__type__": "cc.Vec3",
+      "x": 1,
+      "y": 1,
+      "z": 1
+    },
+    "_mobility": 0,
+    "_layer": 33554432,
+    "_euler": {
+      "__type__": "cc.Vec3",
+      "x": 0,
+      "y": 0,
+      "z": 0
+    },
+    "_id": "daHt73Q9xPzY16iZRwJzEs"
+  },
+  {
+    "__type__": "cc.UITransform",
+    "_name": "",
+    "_objFlags": 0,
+    "__editorExtras__": {},
+    "node": {
+      "__id__": 19
+    },
+    "_enabled": true,
+    "__prefab": null,
+    "_contentSize": {
+      "__type__": "cc.Size",
+      "width": 600,
+      "height": 130.39999999999998
+    },
+    "_anchorPoint": {
+      "__type__": "cc.Vec2",
+      "x": 0.5,
+      "y": 0.5
+    },
+    "_id": "98cda6wV5JLIXYD+NyZ/Ii"
+  },
+  {
+    "__type__": "cc.Label",
+    "_name": "",
+    "_objFlags": 0,
+    "__editorExtras__": {},
+    "node": {
+      "__id__": 19
+    },
+    "_enabled": true,
+    "__prefab": null,
+    "_customMaterial": null,
+    "_srcBlendFactor": 2,
+    "_dstBlendFactor": 4,
+    "_color": {
+      "__type__": "cc.Color",
+      "r": 255,
+      "g": 255,
+      "b": 255,
+      "a": 255
+    },
+    "_string": "修改顶点实现圆角，不改材质，在合批方面完全可以看做是普通的sprite。",
+    "_horizontalAlign": 1,
+    "_verticalAlign": 1,
+    "_actualFontSize": 40,
+    "_fontSize": 40,
+    "_fontFamily": "Arial",
+    "_lineHeight": 40,
+    "_overflow": 3,
+    "_enableWrapText": true,
+    "_font": null,
+    "_isSystemFontUsed": true,
+    "_spacingX": 0,
+    "_isItalic": false,
+    "_isBold": false,
+    "_isUnderline": false,
+    "_underlineHeight": 2,
+    "_cacheMode": 0,
+    "_id": "fadO2qZxVJT7cg7SzoCeIZ"
+  },
   {
     "__type__": "cc.UITransform",
     "_name": "",
@@ -787,29 +899,29 @@
   {
     "__type__": "cc.SceneGlobals",
     "ambient": {
-      "__id__": 23
-    },
-    "shadows": {
-      "__id__": 24
-    },
-    "_skybox": {
-      "__id__": 25
-    },
-    "fog": {
       "__id__": 26
     },
-    "octree": {
+    "shadows": {
       "__id__": 27
     },
-    "skin": {
+    "_skybox": {
       "__id__": 28
     },
-    "lightProbeInfo": {
+    "fog": {
       "__id__": 29
     },
-    "postSettings": {
+    "octree": {
       "__id__": 30
     },
+    "skin": {
+      "__id__": 31
+    },
+    "lightProbeInfo": {
+      "__id__": 32
+    },
+    "postSettings": {
+      "__id__": 33
+    },
     "bakedWithStationaryMainLight": false,
     "bakedWithHighpLightmap": false
   },