diff --git a/bin/Scene/Objects/Copyleft.class b/bin/Scene/Objects/Copyleft.class
index dac669e..0d34152 100644
Binary files a/bin/Scene/Objects/Copyleft.class and b/bin/Scene/Objects/Copyleft.class differ
diff --git a/bin/Scene/Objects/Cube.class b/bin/Scene/Objects/Cube.class
index bf56e51..3993aaa 100644
Binary files a/bin/Scene/Objects/Cube.class and b/bin/Scene/Objects/Cube.class differ
diff --git a/bin/Scene/Objects/Player.class b/bin/Scene/Objects/Player.class
index f14204f..ce88735 100644
Binary files a/bin/Scene/Objects/Player.class and b/bin/Scene/Objects/Player.class differ
diff --git a/bin/Scene/Objects/TestObj.class b/bin/Scene/Objects/TestObj.class
deleted file mode 100644
index 682007c..0000000
Binary files a/bin/Scene/Objects/TestObj.class and /dev/null differ
diff --git a/bin/Scene/Objects/Wall.class b/bin/Scene/Objects/Wall.class
index 1f429cf..515e168 100644
Binary files a/bin/Scene/Objects/Wall.class and b/bin/Scene/Objects/Wall.class differ
diff --git a/bin/Scene/skybox/Skybox.class b/bin/Scene/skybox/Skybox.class
index 6e1c512..59b96db 100644
Binary files a/bin/Scene/skybox/Skybox.class and b/bin/Scene/skybox/Skybox.class differ
diff --git a/src/Scene/Objects/Copyleft.java b/src/Scene/Objects/Copyleft.java
index ad968e5..d59c717 100644
--- a/src/Scene/Objects/Copyleft.java
+++ b/src/Scene/Objects/Copyleft.java
@@ -3,7 +3,7 @@ package Scene.Objects;
 import Scene.base.SceneObject;
 import base.GraphicsObjects.Point4f;
 import base.GraphicsObjects.Vector4f;
-import base.objects3D.TexCube;
+import base.objects3D.DisplayListTexCube;
 import org.lwjgl.opengl.GL11;
 import org.newdawn.slick.Color;
 import org.newdawn.slick.opengl.Texture;
@@ -18,7 +18,7 @@ import java.util.HashMap;
  * @Description:
  **/
 public class Copyleft extends SceneObject {
-    private TexCube cube = new TexCube();
+    private DisplayListTexCube cube = new DisplayListTexCube();
 
     public Copyleft(Point4f origin, Point4f position, Vector4f scale) {
         super(origin, position, scale);
@@ -46,7 +46,7 @@ public class Copyleft extends SceneObject {
         ;
 //        GL11.glDisable(GL11.GL_LIGHTING); // switch lighting off
         GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
-        cube.DrawTexCube(1f);
+        cube.DrawTexCube();
 //        GL11.glEnable(GL11.GL_LIGHTING); // switch lighting off
         ;
 
diff --git a/src/Scene/Objects/Cube.java b/src/Scene/Objects/Cube.java
index 20e7851..3fca921 100644
--- a/src/Scene/Objects/Cube.java
+++ b/src/Scene/Objects/Cube.java
@@ -3,7 +3,8 @@ package Scene.Objects;
 import Scene.base.SceneObject;
 import base.GraphicsObjects.Point4f;
 import base.GraphicsObjects.Vector4f;
-import base.objects3D.TexCube;
+import base.objects3D.DisplayListTexCube;
+
 import org.lwjgl.opengl.GL11;
 import org.newdawn.slick.Color;
 import org.newdawn.slick.opengl.Texture;
@@ -18,7 +19,7 @@ import java.util.HashMap;
  * @Description:
  **/
 public class Cube extends SceneObject {
-    private TexCube cube = new TexCube();
+    private DisplayListTexCube cube = new DisplayListTexCube();
 
     public Cube(Point4f origin, Point4f position, Vector4f scale) {
         super(origin, position, scale);
@@ -45,7 +46,7 @@ public class Cube extends SceneObject {
         getTextures().get("default_dirt").bind();
         ;
         GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
-        cube.DrawTexCube(1f);
+        cube.DrawTexCube();
         ;
 
     }
diff --git a/src/Scene/Objects/Player.java b/src/Scene/Objects/Player.java
index c2ceb9d..33d31de 100644
--- a/src/Scene/Objects/Player.java
+++ b/src/Scene/Objects/Player.java
@@ -198,12 +198,12 @@ public class Player extends SceneObject {
             LimbRotation = 0;
         }
 
-        //a sphere for drawing
-        Sphere sphere = new Sphere();
-        //a sphere with texture
-        TexSphere texSphere = new TexSphere();
-        //a cylinder for drawing
-        Cylinder cylinder = new Cylinder();
+//        //a sphere for drawing
+//        Sphere sphere = new Sphere();
+//        //a sphere with texture
+//        TexSphere texSphere = new TexSphere();
+//        //a cylinder for drawing
+//        Cylinder cylinder = new Cylinder();
 
         //Start to draw
         GL11.glPushMatrix();
diff --git a/src/Scene/Objects/TestObj.java b/src/Scene/Objects/TestObj.java
deleted file mode 100644
index a727f8c..0000000
--- a/src/Scene/Objects/TestObj.java
+++ /dev/null
@@ -1,39 +0,0 @@
-package Scene.Objects;
-
-import Scene.base.SceneObject;
-import base.GraphicsObjects.Point4f;
-import base.GraphicsObjects.Vector4f;
-import base.objects3D.Oval;
-import org.lwjgl.opengl.GL11;
-import org.newdawn.slick.Color;
-import org.newdawn.slick.opengl.Texture;
-
-import java.util.HashMap;
-
-/**
- * @Author: WangYuyang
- * @Date: 2021/11/6-00:58
- * @Project: Assignment3
- * @Package: Scene.Objects
- * @Description:
- **/
-public class TestObj extends SceneObject {
-    Oval oval = new Oval();
-    public TestObj(Point4f origin, Point4f position, Vector4f scale) {
-        super(origin, position, scale);
-    }
-
-    public TestObj(Point4f origin, Point4f position, Vector4f scale, HashMap<String, Texture> textures) {
-        super(origin, position, scale, textures);
-    }
-
-    public TestObj(Point4f origin, Point4f position, Vector4f scale, Vector4f rotation, HashMap<String, Texture> textures) {
-        super(origin, position, scale, rotation, textures);
-    }
-
-    @Override
-    public void draw(Integer frame_delta) {
-        Color.black.bind();
-        oval.DrawOval(1, 32);
-    }
-}
diff --git a/src/Scene/Objects/Wall.java b/src/Scene/Objects/Wall.java
index 1a1cfe6..f02f5d1 100644
--- a/src/Scene/Objects/Wall.java
+++ b/src/Scene/Objects/Wall.java
@@ -3,6 +3,7 @@ package Scene.Objects;
 import Scene.base.SceneObject;
 import base.GraphicsObjects.Point4f;
 import base.GraphicsObjects.Vector4f;
+import base.objects3D.DisplayListTexCube;
 import base.objects3D.TexCube;
 import org.lwjgl.opengl.GL11;
 import org.newdawn.slick.Color;
@@ -18,7 +19,7 @@ import java.util.HashMap;
  * @Description:
  **/
 public class Wall extends SceneObject {
-    private TexCube MyGrid = new TexCube();
+    private DisplayListTexCube MyGrid = new DisplayListTexCube();
 
     public Wall(Point4f origin, Point4f position, Vector4f scale) {
         super(origin, position, scale);
@@ -47,7 +48,7 @@ public class Wall extends SceneObject {
 //        getTextures().get("default_dirt").bind();
         ;
         GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
-        MyGrid.DrawTexCube(10f);
+        MyGrid.DrawTexCube();
         ;
 
     }
diff --git a/src/Scene/skybox/Skybox.java b/src/Scene/skybox/Skybox.java
index 95ce10b..ba9bd4a 100644
--- a/src/Scene/skybox/Skybox.java
+++ b/src/Scene/skybox/Skybox.java
@@ -3,7 +3,8 @@ package Scene.skybox;
 import Scene.base.SceneObject;
 import base.GraphicsObjects.Point4f;
 import base.GraphicsObjects.Vector4f;
-import base.objects3D.TexCube;
+import base.objects3D.DisplayListTexCube;
+
 import org.lwjgl.opengl.GL11;
 import org.lwjgl.opengl.GL12;
 import org.newdawn.slick.Color;
@@ -21,7 +22,7 @@ import static org.lwjgl.opengl.GL11.*;
  * @Description:
  **/
 public class Skybox extends SceneObject {
-    private TexCube cube = new TexCube();
+    private DisplayListTexCube cube = new DisplayListTexCube();
     int face1 = glGenLists(1);
     int face2 = glGenLists(1);
     int face3 = glGenLists(1);