diff --git a/bin/Scene/Objects/Copyleft.class b/bin/Scene/Objects/Copyleft.class
index 9811835..a3bf8e2 100644
Binary files a/bin/Scene/Objects/Copyleft.class and b/bin/Scene/Objects/Copyleft.class differ
diff --git a/bin/Scene/Objects/NPC2$1.class b/bin/Scene/Objects/NPC2$1.class
new file mode 100644
index 0000000..a046abe
Binary files /dev/null and b/bin/Scene/Objects/NPC2$1.class differ
diff --git a/bin/Scene/Objects/NPC2.class b/bin/Scene/Objects/NPC2.class
new file mode 100644
index 0000000..6c9d9b2
Binary files /dev/null and b/bin/Scene/Objects/NPC2.class differ
diff --git a/bin/Scene/Objects/Player$2.class b/bin/Scene/Objects/Player$2.class
index 624f0fc..3d14e7a 100644
Binary files a/bin/Scene/Objects/Player$2.class and b/bin/Scene/Objects/Player$2.class differ
diff --git a/bin/Scene/Objects/Player.class b/bin/Scene/Objects/Player.class
index 7084acf..4e84436 100644
Binary files a/bin/Scene/Objects/Player.class and b/bin/Scene/Objects/Player.class differ
diff --git a/bin/Scene/Scene$1.class b/bin/Scene/Scene$1.class
index 143955a..89a8826 100644
Binary files a/bin/Scene/Scene$1.class and b/bin/Scene/Scene$1.class differ
diff --git a/bin/Scene/Scene$2.class b/bin/Scene/Scene$2.class
index 4123a7e..0c1ee34 100644
Binary files a/bin/Scene/Scene$2.class and b/bin/Scene/Scene$2.class differ
diff --git a/bin/Scene/Scene$3.class b/bin/Scene/Scene$3.class
index 3236a2b..0f0c17b 100644
Binary files a/bin/Scene/Scene$3.class and b/bin/Scene/Scene$3.class differ
diff --git a/bin/Scene/Scene$4.class b/bin/Scene/Scene$4.class
index 6a9954b..5b34635 100644
Binary files a/bin/Scene/Scene$4.class and b/bin/Scene/Scene$4.class differ
diff --git a/bin/Scene/Scene$5.class b/bin/Scene/Scene$5.class
index b022e61..a3af8f9 100644
Binary files a/bin/Scene/Scene$5.class and b/bin/Scene/Scene$5.class differ
diff --git a/bin/Scene/Scene.class b/bin/Scene/Scene.class
index 665a6a8..1576e0b 100644
Binary files a/bin/Scene/Scene.class and b/bin/Scene/Scene.class differ
diff --git a/bin/Scene/base/SceneObject.class b/bin/Scene/base/SceneObject.class
index 6d84ad3..58f7e6f 100644
Binary files a/bin/Scene/base/SceneObject.class and b/bin/Scene/base/SceneObject.class differ
diff --git a/bin/base/obj/OBJLoader.class b/bin/base/obj/OBJLoader.class
index 6021c65..4ba52ad 100644
Binary files a/bin/base/obj/OBJLoader.class and b/bin/base/obj/OBJLoader.class differ
diff --git a/bin/main/Engine.class b/bin/main/Engine.class
index 4da417a..b0bfbc8 100644
Binary files a/bin/main/Engine.class and b/bin/main/Engine.class differ
diff --git a/bin/main/Main$1.class b/bin/main/Main$1.class
index b0712a6..7b3cbf8 100644
Binary files a/bin/main/Main$1.class and b/bin/main/Main$1.class differ
diff --git a/bin/main/Main$2.class b/bin/main/Main$2.class
index c9886a8..3a561f8 100644
Binary files a/bin/main/Main$2.class and b/bin/main/Main$2.class differ
diff --git a/bin/main/Main$3.class b/bin/main/Main$3.class
index ff186dd..af3c0cb 100644
Binary files a/bin/main/Main$3.class and b/bin/main/Main$3.class differ
diff --git a/bin/main/Main.class b/bin/main/Main.class
index 334118c..f3abdd2 100644
Binary files a/bin/main/Main.class and b/bin/main/Main.class differ
diff --git a/bin/main/ShaderLoader.class b/bin/main/ShaderLoader.class
index 531a349..8e2065e 100644
Binary files a/bin/main/ShaderLoader.class and b/bin/main/ShaderLoader.class differ
diff --git a/res/shaders/invert.fsh b/res/shaders/invert.fsh
new file mode 100644
index 0000000..356b3dc
--- /dev/null
+++ b/res/shaders/invert.fsh
@@ -0,0 +1,14 @@
+#version 110
+
+uniform sampler2D DiffuseSampler;
+
+varying vec2 texCoord;
+
+uniform float InverseAmount;
+
+void main(){
+    vec4 diffuseColor = texture2D(DiffuseSampler, texCoord);
+    vec4 invertColor = 1.0 - diffuseColor;
+    vec4 outColor = mix(diffuseColor, invertColor, InverseAmount);
+    gl_FragColor = vec4(outColor.rgb, 1.0);
+}
diff --git a/res/shaders/invert.vsh b/res/shaders/invert.vsh
new file mode 100644
index 0000000..2fe497c
--- /dev/null
+++ b/res/shaders/invert.vsh
@@ -0,0 +1,20 @@
+#version 110
+
+attribute vec4 Position;
+
+uniform mat4 ProjMat;
+uniform vec2 InSize;
+uniform vec2 OutSize;
+
+varying vec2 texCoord;
+
+void main(){
+    vec4 outPos = ProjMat * vec4(Position.xy, 0.0, 1.0);
+    gl_Position = vec4(outPos.xy, 0.2, 1.0);
+
+    vec2 sizeRatio = OutSize / InSize;
+    texCoord = Position.xy / OutSize;
+    texCoord.x = texCoord.x * sizeRatio.x;
+    texCoord.y = texCoord.y * sizeRatio.y;
+    texCoord.y = sizeRatio.y - texCoord.y;
+}
diff --git a/src/Scene/Objects/Copyleft.java b/src/Scene/Objects/Copyleft.java
index 3f1a3b1..2aa2012 100644
--- a/src/Scene/Objects/Copyleft.java
+++ b/src/Scene/Objects/Copyleft.java
@@ -4,14 +4,15 @@ import Scene.base.SceneObject;
 import base.GraphicsObjects.Point4f;
 import base.GraphicsObjects.Vector4f;
 import base.objects3D.DisplayListTexCube;
+import main.Engine;
 import org.lwjgl.opengl.GL11;
 import org.newdawn.slick.Color;
 import org.newdawn.slick.opengl.Texture;
 
 import java.util.HashMap;
 
-import static org.lwjgl.opengl.GL11.GL_NEAREST;
-import static org.lwjgl.opengl.GL11.GL_TEXTURE_MIN_FILTER;
+import static org.lwjgl.opengl.GL11.*;
+import static org.lwjgl.opengl.GL11.GL_TEXTURE_2D;
 
 /**
  * @Author: WangYuyang
@@ -46,11 +47,13 @@ public class Copyleft extends SceneObject {
         Color.white.bind();
         //bind texture
         getTextures().get("copyleft").bind();
+//        glBindTexture(GL_TEXTURE_2D, Engine.shadowTexture);
         ;
 //        GL11.glDisable(GL11.GL_LIGHTING); // switch lighting off
         GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL_NEAREST);
         GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
         cube.DrawTexCube();
+//        glBindTexture(GL_TEXTURE_2D, 0);
 //        GL11.glEnable(GL11.GL_LIGHTING); // switch lighting off
         ;
 
diff --git a/src/Scene/Objects/NPC2.java b/src/Scene/Objects/NPC2.java
new file mode 100644
index 0000000..a4fcbcd
--- /dev/null
+++ b/src/Scene/Objects/NPC2.java
@@ -0,0 +1,705 @@
+package Scene.Objects;
+
+import Scene.base.SceneObject;
+import base.GraphicsObjects.Point4f;
+import base.GraphicsObjects.Utils;
+import base.GraphicsObjects.Vector4f;
+import base.objects3D.DisplayListCylinder;
+import base.objects3D.DisplayListOval;
+import base.objects3D.DisplayListTexSphere;
+import main.Engine;
+import org.lwjgl.opengl.GL11;
+import org.newdawn.slick.Color;
+import org.newdawn.slick.opengl.Texture;
+
+import java.util.HashMap;
+import java.util.Random;
+
+import static org.lwjgl.opengl.GL11.GL_NEAREST;
+import static org.lwjgl.opengl.GL11.GL_TEXTURE_MIN_FILTER;
+
+/**
+ * @Author: WangYuyang
+ * @Date: 2021/11/6-19:33
+ * @Project: Assignment3
+ * @Package: Scene.Objects
+ * @Description:
+ **/
+public class NPC2 extends SceneObject {
+    public static int angle_target = 0;
+    public static int angle = 0;
+    // basic colours
+    static float black[] = {0.0f, 0.0f, 0.0f, 1.0f};
+    static float white[] = {1.0f, 1.0f, 1.0f, 1.0f};
+    static float grey[] = {0.5f, 0.5f, 0.5f, 1.0f};
+    static float spot[] = {0.1f, 0.1f, 0.1f, 0.5f};
+    // primary colours
+    static float red[] = {1.0f, 0.0f, 0.0f, 1.0f};
+    static float green[] = {0.0f, 1.0f, 0.0f, 1.0f};
+    static float blue[] = {0.0f, 0.0f, 1.0f, 1.0f};
+    // secondary colours
+    static float yellow[] = {1.0f, 1.0f, 0.0f, 1.0f};
+    static float magenta[] = {1.0f, 0.0f, 1.0f, 1.0f};
+    static float cyan[] = {0.0f, 1.0f, 1.0f, 1.0f};
+    // other colours
+    static float orange[] = {1.0f, 0.5f, 0.0f, 1.0f, 1.0f};
+    static float brown[] = {0.5f, 0.25f, 0.0f, 1.0f, 1.0f};
+    static float dkgreen[] = {0.0f, 0.5f, 0.0f, 1.0f, 1.0f};
+    static float pink[] = {1.0f, 0.6f, 0.6f, 1.0f, 1.0f};
+    DisplayListTexSphere s1 = new DisplayListTexSphere(0.5f, 32, 32, getTextures().get("warped_door_bottom"));
+    DisplayListTexSphere s2 = new DisplayListTexSphere(0.5f, 32, 32, getTextures().get("warped_door_bottom"));
+    DisplayListTexSphere s3 = new DisplayListTexSphere(0.25f, 32, 32, getTextures().get("default_stone"));
+    DisplayListTexSphere s4 = new DisplayListTexSphere(0.2f, 32, 32, getTextures().get("default_stone"));
+    DisplayListTexSphere s5 = new DisplayListTexSphere(0.2f, 32, 32, getTextures().get("default_stone"));
+    DisplayListTexSphere s6 = new DisplayListTexSphere(0.25f, 32, 32, getTextures().get("default_stone"));
+    DisplayListTexSphere s7 = new DisplayListTexSphere(0.2f, 32, 32, getTextures().get("default_stone"));
+    DisplayListTexSphere s8 = new DisplayListTexSphere(0.2f, 32, 32, getTextures().get("default_stone"));
+    DisplayListTexSphere s9 = new DisplayListTexSphere(0.25f, 32, 32, getTextures().get("default_cobble"));
+    DisplayListTexSphere s10 = new DisplayListTexSphere(0.25f, 32, 32, getTextures().get("default_cobble"));
+    DisplayListTexSphere s11 = new DisplayListTexSphere(0.3f, 32, 32, getTextures().get("default_cobble"));
+    DisplayListTexSphere s12 = new DisplayListTexSphere(0.25f, 32, 32, getTextures().get("default_cobble"));
+    DisplayListTexSphere s13 = new DisplayListTexSphere(0.25f, 32, 32, getTextures().get("default_cobble"));
+    DisplayListTexSphere s14 = new DisplayListTexSphere(0.3f, 32, 32, getTextures().get("default_cobble"));
+    DisplayListTexSphere s15 = new DisplayListTexSphere(0.5f, 32, 32, getTextures().get("awesomeface"));
+    DisplayListCylinder c1 = new DisplayListCylinder(0.15f, 0.7f, 32);
+    DisplayListCylinder c2 = new DisplayListCylinder(0.15f, 0.7f, 32);
+    DisplayListCylinder c3 = new DisplayListCylinder(0.1f, 0.7f, 32);
+    DisplayListCylinder c4 = new DisplayListCylinder(0.15f, 0.7f, 32);
+    DisplayListCylinder c5 = new DisplayListCylinder(0.1f, 0.7f, 32);
+    DisplayListCylinder c6 = new DisplayListCylinder(0.15f, 0.7f, 32);
+    DisplayListCylinder c7 = new DisplayListCylinder(0.15f, 0.7f, 32);
+    DisplayListCylinder c8 = new DisplayListCylinder(0.15f, 0.7f, 32);
+    DisplayListCylinder c9 = new DisplayListCylinder(0.15f, 0.7f, 32);
+    DisplayListOval shadow = new DisplayListOval(3f, 32);
+    Random random = new Random();
+    private float delta;
+    private Boolean isWalking = false;
+    private long walkStartTime;
+    private int stopCount = 0;
+    private Boolean isJumping = false;
+    private float jump_height = 0f;
+    private float timePassed = Engine.getTimePassed();
+
+    public NPC2(Point4f origin, Point4f position, Vector4f scale) {
+        super(origin, position, scale);
+    }
+
+    public NPC2(Point4f origin, Point4f position, Vector4f scale, HashMap<String, Texture> textures) {
+        super(origin, position, scale, textures);
+    }
+
+    public void walk() {
+        stopCount = 0;
+        if (isWalking == false) {
+            isWalking = true;
+            walkStartTime = Engine.getTimePassed();
+//            System.out.println(walkStartTime);
+        }
+        if (isWalking) {
+            this.delta = (Engine.getTimePassed() - walkStartTime) / 10000f;
+        }
+    }
+
+    public void jump(int speed) {
+        float g = 9.8f;
+        if (!isJumping) {
+            isJumping = true;
+            long start_time = System.currentTimeMillis();
+            Thread thread = new Thread(new Runnable() {
+                @Override
+                public void run() {
+                    double h = 0;
+                    long t = 0;
+                    while (h >= 0) {
+                        long start = System.currentTimeMillis();
+                        long current_time = System.currentTimeMillis();
+                        t = (current_time - start_time) / 10;
+                        h = (speed * t - 0.5 * g * t * t) / 10000;
+                        jump_height = (float) h;
+                        setShadowOffset(new Vector4f(
+                                -jump_height * 90,
+                                0,
+                                -jump_height * 90,
+                                0
+                        ));
+                        long end = System.currentTimeMillis();
+                        while (end - start < 16) {
+                            try {
+                                Thread.sleep(1);
+                            } catch (InterruptedException e) {
+                                e.printStackTrace();
+                            }
+                            end = System.currentTimeMillis();
+                        }
+                    }
+                    jump_height = 0;
+                    isJumping = false;
+
+                }
+            });
+            thread.start();
+        }
+
+    }
+
+    public void stop() {
+        if (stopCount > 5) {
+            isWalking = false;
+            this.delta = 0;
+            stopCount = 0;
+        }
+        stopCount++;
+    }
+
+    public void setAngle(float angle) {
+        this.angle_target = (int) angle;
+    }
+
+    @Override
+    public void draw(Integer frame_delta) {
+        timePassed = Engine.getTimePassed() / 10000.0f;
+        float speed = frame_delta / 160f;
+//        System.out.println(speed);
+//        walk();
+//        if((int) (timePassed % 4) == 0){
+//            move(new Vector4f(speed,0,0,0));
+//            angle_target = 90;
+//
+//        }
+//        if((int) (timePassed % 4) == 1){
+//            move(new Vector4f(0,0,-speed,0));
+//            angle_target = 90 + 90;
+//        }
+//        if((int) (timePassed % 4) == 2){
+//            move(new Vector4f(-speed,0,0,0));
+//            angle_target = 90 + 90 + 90;
+//        }
+//        if((int) (timePassed % 4) == 3){
+//            move(new Vector4f(0,0,speed,0));
+//            angle_target = 90 + 90 + 90 + 90;
+//        }
+        GL11.glTranslatef(0, jump_height, 0);
+        Boolean GoodAnimation = true;
+
+        float theta_face = (float) (delta * 2 * Math.PI);
+//        float angle = -(float) (180 * (theta_face) / Math.PI);
+//        System.out.println(angle);
+//
+        GL11.glRotatef(angle + 180, 0, 1, 0);
+
+        float theta = (float) (delta * 2 * Math.PI) * 8;
+        //a variable for anim sync
+        float LimbRotation;
+        LimbRotation = (float) Math.sin(theta) * 60;
+
+        float Rotation = (float) Math.toDegrees(Math.sin(Engine.getTimePassed() / 200f) * Math.PI);
+        if (random.nextDouble() > 0.8) {
+            jump((int) (random.nextDouble() * 800));
+        }
+
+
+//        //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();
+        {
+            // move to pelvis
+            GL11.glTranslatef(0.0f, 0.5f, 0.0f);
+            //set up TEXTURE
+            GL11.glTexParameteri(
+                    GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T,
+                    GL11.GL_REPEAT);
+            //bind a color texture
+            Color.white.bind();
+
+            getTextures().get("warped_door_bottom").bind();
+            //Enable TEXTURE
+
+            //set texture Parameters
+            GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+            GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+
+            s1.DrawTexSphere();
+
+            //Draw finish Disable TEXTURE
+
+
+//            sphere.DrawSphere(0.5f, 32, 32); // pelvis sphere
+
+            //  chest
+            GL11.glColor3f(green[0], green[1], green[2]);
+            GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(green));
+            GL11.glPushMatrix();
+            {
+                GL11.glTranslatef(0.0f, 0.5f, 0.0f);           // move to chest
+                GL11.glTexParameteri(
+                        GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T,
+                        GL11.GL_REPEAT);
+                Color.white.bind(); //bind color
+                //bind texture
+                getTextures().get("warped_door_bottom").bind(); //set texture
+                //Enable TEXTURE
+                ;
+                GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+                GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+
+                s2.DrawTexSphere();
+                ; //disable texture
+
+
+//                sphere.DrawSphere(0.5f, 32, 32);// chest sphere
+//                GL11.glRotatef((float) (Rotation * 0.1), 0.0f, 0.0f, 1.0f);
+//                System.out.println((Rotation));
+//                GL11.glRotatef((float) (LimbRotation * 3), 1f, 1f, 0f);
+
+                // neck
+                GL11.glColor3f(orange[0], orange[1], orange[2]); //set color
+                GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(orange)); //set material render mode
+                GL11.glPushMatrix();
+                {
+                    GL11.glTranslatef(0.0f, 0.0f, 0.0f);
+                    GL11.glRotatef(-90.0f, 1.0f, 0.0f, 0.0f);
+                    //                    GL11.glRotatef(45.0f,0.0f,1.0f,0.0f);
+
+                    c1.DrawCylinder();
+
+                    // head
+                    GL11.glColor3f(red[0], red[1], red[2]);
+                    GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(red));
+                    GL11.glPushMatrix();
+                    {
+                        GL11.glTranslatef(0.0f, 0.0f, 1.0f);
+
+                        GL11.glTexParameteri(
+                                GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T,
+                                GL11.GL_REPEAT);
+                        Color.white.bind();
+                        getTextures().get("awesomeface").bind(); //set texture
+                        ;
+                        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
+                        GL11.glRotatef((float) (Rotation * 0.1), 0.0f, 0.0f, 0.0f);
+                        s15.DrawTexSphere();
+                        ;
+
+
+//                        sphere.DrawSphere(0.5f, 32, 32);
+                        GL11.glPopMatrix();
+                    }
+                    GL11.glPopMatrix();
+
+
+                    // left shoulder
+                    GL11.glColor3f(blue[0], blue[1], blue[2]);
+                    GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(blue));
+                    GL11.glPushMatrix();
+                    {
+                        GL11.glRotatef((float) (LimbRotation * 0.5), 0f, 1f, 0f);
+
+                        GL11.glTranslatef(0.5f, 0.4f, 0.0f);
+                        //set texture Parameter
+                        GL11.glTexParameteri(
+                                GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T,
+                                GL11.GL_REPEAT);
+                        Color.white.bind();
+                        getTextures().get("default_stone").bind();  //set texture
+                        ;
+                        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
+
+                        s3.DrawTexSphere();
+//                        sphere.DrawSphere(0.25f, 32, 32);
+
+
+                        // left arm
+                        GL11.glColor3f(orange[0], orange[1], orange[2]);
+                        GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(orange));
+                        GL11.glPushMatrix();
+                        {
+                            GL11.glTranslatef(0.0f, 0.0f, 0.0f);
+                            GL11.glRotatef(20, 0f, 0f, 1f);
+                            GL11.glRotatef(90.0f, 1.0f, 0.0f, 0.0f);
+
+                            GL11.glRotatef((float) (-Rotation * 0.2), 1.0f, 0.0f, 0.0f);
+                            //   GL11.glRotatef(27.5f,0.0f,1.0f,0.0f);
+
+                            c2.DrawCylinder();
+
+
+                            // left elbow
+                            GL11.glColor3f(blue[0], blue[1], blue[2]);
+                            GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(blue));
+                            GL11.glPushMatrix();
+                            {
+                                GL11.glRotatef((float) (LimbRotation * -0.5), 0f, 0f, 1f);
+                                GL11.glTranslatef(0.0f, 0.0f, 0.75f);
+                                GL11.glTexParameteri(
+                                        GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T,
+                                        GL11.GL_REPEAT);
+                                Color.white.bind();
+                                getTextures().get("default_stone").bind();
+                                ;
+                                GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
+
+                                s4.DrawTexSphere();
+                                ;
+//                                sphere.DrawSphere(0.2f, 32, 32);
+
+                                //left forearm
+                                GL11.glColor3f(orange[0], orange[1], orange[2]);
+                                GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(orange));
+                                GL11.glPushMatrix();
+                                {
+                                    GL11.glTranslatef(0.0f, 0.0f, 0.0f);
+                                    GL11.glRotatef(90.0f, 1.0f, 0.0f, 0.0f);
+                                    //   GL11.glRotatef(90.0f,0.0f,1.0f,0.0f);
+                                    GL11.glRotatef((float) (Rotation * 0.2), 0.0f, 1.0f, 0.0f);
+                                    c3.DrawCylinder();
+
+                                    // left hand
+                                    GL11.glColor3f(blue[0], blue[1], blue[2]);
+                                    GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(blue));
+                                    GL11.glPushMatrix();
+                                    {
+                                        GL11.glTranslatef(0.0f, 0.0f, 0.75f);
+                                        GL11.glTexParameteri(
+                                                GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T,
+                                                GL11.GL_REPEAT);
+                                        Color.white.bind();
+                                        getTextures().get("default_stone").bind();
+                                        ;
+                                        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
+
+                                        s5.DrawTexSphere();
+                                        ;
+//                                        sphere.DrawSphere(0.2f, 32, 32);
+
+
+                                    }
+                                    GL11.glPopMatrix();
+                                }
+                                GL11.glPopMatrix();
+                            }
+                            GL11.glPopMatrix();
+                        }
+                        GL11.glPopMatrix();
+                    }
+                    GL11.glPopMatrix();
+
+
+                    // to chest
+                    GL11.glColor3f(blue[0], blue[1], blue[2]);
+                    GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(blue));
+                    GL11.glPushMatrix();
+                    {
+                        GL11.glRotatef((float) (LimbRotation * 0.5), 0f, 1f, 0f);
+
+                        GL11.glTranslatef(-0.5f, 0.4f, 0.0f); // move to right arm
+                        GL11.glTexParameteri(
+                                GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T,
+                                GL11.GL_REPEAT);
+                        Color.white.bind();
+                        getTextures().get("default_stone").bind();
+                        ;
+                        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
+
+                        s6.DrawTexSphere();
+                        ;
+//                        sphere.DrawSphere(0.25f, 32, 32);
+
+
+                        // right arm
+                        GL11.glColor3f(orange[0], orange[1], orange[2]);
+                        GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(orange));
+                        GL11.glPushMatrix();
+                        {
+                            GL11.glRotatef(-20, 0f, 0f, 1f);
+                            GL11.glTranslatef(0.0f, 0.0f, 0.0f);
+                            GL11.glRotatef(90.0f, 1.0f, 0.0f, 0.0f);
+
+
+                            GL11.glRotatef(-LimbRotation, 1.0f, 0.0f, 0.0f);
+
+                            //   GL11.glRotatef(27.5f,0.0f,1.0f,0.0f);
+                            c4.DrawCylinder();
+
+
+                            // right elbow
+                            GL11.glColor3f(blue[0], blue[1], blue[2]);
+                            GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(blue));
+                            GL11.glPushMatrix();
+                            {
+                                GL11.glRotatef((float) (LimbRotation * -0.5), 0f, 0f, 1f);
+                                GL11.glTranslatef(0.0f, 0.0f, 0.75f);
+                                GL11.glRotatef((float) (-Rotation * 0.2), 1.0f, 0.0f, 0.0f);
+                                GL11.glTexParameteri(
+                                        GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T,
+                                        GL11.GL_REPEAT);
+                                Color.white.bind();
+                                getTextures().get("default_stone").bind();
+                                ;
+                                GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
+
+                                s7.DrawTexSphere();
+                                ;
+//                                sphere.DrawSphere(0.2f, 32, 32);
+
+                                //right forearm
+                                GL11.glColor3f(orange[0], orange[1], orange[2]);
+                                GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(orange));
+                                GL11.glPushMatrix();
+                                {
+                                    GL11.glTranslatef(0.0f, 0.0f, 0.0f);
+                                    GL11.glRotatef(90.0f, 1.0f, 0.0f, 0.0f);
+                                    //   GL11.glRotatef(90.0f,0.0f,1.0f,0.0f);
+                                    GL11.glRotatef((float) (-Rotation * 0.2), 0.0f, 1.0f, 0.0f);
+                                    c5.DrawCylinder();
+
+                                    // right hand
+                                    GL11.glColor3f(blue[0], blue[1], blue[2]);
+                                    GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(blue));
+                                    GL11.glPushMatrix();
+                                    {
+                                        GL11.glTranslatef(0.0f, 0.0f, 0.75f);
+                                        GL11.glTexParameteri(
+                                                GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T,
+                                                GL11.GL_REPEAT);
+                                        Color.white.bind();
+                                        getTextures().get("default_stone").bind();
+                                        ;
+                                        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
+
+                                        s8.DrawTexSphere();
+                                        ;
+//                                        sphere.DrawSphere(0.2f, 32, 32);
+
+
+                                    }
+                                    GL11.glPopMatrix();
+                                }
+                                GL11.glPopMatrix();
+                            }
+                            GL11.glPopMatrix();
+                        }
+                        GL11.glPopMatrix();
+                    }
+                    GL11.glPopMatrix();
+
+                    //now chest
+
+
+                }
+                GL11.glPopMatrix();
+//                GL11.glRotatef(LimbRotation * 3, 0.0f, 1.0f, 0.0f);
+//                GL11.glRotatef((float) (LimbRotation * -0.2), 0.0f, 1.0f, 0.0f);
+
+
+//                GL11.glPushMatrix();
+//                GL11.glTranslatef(0,-1.8f,0);
+//                glDisable(GL_LIGHTING);
+//                glDisable(GL_TEXTURE_2D);
+//                Color.black.bind();
+//                shadow.DrawOval();
+//                Color.white.bind();
+//                glEnable(GL_TEXTURE_2D);
+//                glEnable(GL_LIGHTING);
+//                GL11.glPopMatrix();
+                // pelvis
+                // left hip
+                GL11.glColor3f(blue[0], blue[1], blue[2]);
+                GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(blue));
+                GL11.glPushMatrix();
+                {
+                    GL11.glTranslatef(0.5f, -0.2f, 0.0f);
+                    GL11.glTexParameteri(
+                            GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T,
+                            GL11.GL_REPEAT);
+                    Color.white.bind();
+                    getTextures().get("default_cobble").bind();
+                    ;
+                    GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
+
+                    s9.DrawTexSphere();
+                    ;
+//                    sphere.DrawSphere(0.25f, 32, 32);
+
+
+                    // left high leg
+                    GL11.glColor3f(orange[0], orange[1], orange[2]);
+                    GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(orange));
+                    GL11.glPushMatrix();
+                    {
+                        GL11.glTranslatef(0.0f, 0.0f, 0.0f);
+                        GL11.glRotatef(0.0f, 0.0f, 0.0f, 0.0f);
+
+
+                        GL11.glRotatef((-LimbRotation / 2) + 90, 1.0f, 0.0f, 0.0f);
+                        //   GL11.glRotatef(90.0f,1.0f,0.0f,0.0f);
+
+                        c6.DrawCylinder();
+
+
+                        // left knee
+                        GL11.glColor3f(blue[0], blue[1], blue[2]);
+                        GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(blue));
+                        GL11.glPushMatrix();
+                        {
+                            GL11.glTranslatef(0.0f, 0.0f, 0.75f);
+                            GL11.glRotatef(0.0f, 0.0f, 0.0f, 0.0f);
+                            GL11.glTexParameteri(
+                                    GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T,
+                                    GL11.GL_REPEAT);
+                            Color.white.bind();
+                            getTextures().get("default_cobble").bind();
+                            ;
+                            GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
+
+                            s10.DrawTexSphere();
+                            ;
+//                            sphere.DrawSphere(0.25f, 32, 32);
+
+                            //left low leg
+                            GL11.glColor3f(orange[0], orange[1], orange[2]);
+                            GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(orange));
+                            GL11.glPushMatrix();
+                            {
+                                GL11.glTranslatef(0.0f, 0.0f, 0.0f);
+                                // GL11.glRotatef(120.0f,1.0f,0.0f,0.0f);
+                                //  GL11.glRotatef(0.0f,0.0f,0.0f,0.0f);
+
+                                c7.DrawCylinder();
+
+                                // left foot
+                                GL11.glColor3f(blue[0], blue[1], blue[2]);
+                                GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(blue));
+                                GL11.glPushMatrix();
+                                {
+                                    GL11.glTranslatef(0.0f, 0.0f, 0.75f);
+                                    GL11.glTexParameteri(
+                                            GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T,
+                                            GL11.GL_REPEAT);
+                                    Color.white.bind();
+                                    getTextures().get("default_cobble").bind();
+                                    ;
+                                    GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
+
+                                    s11.DrawTexSphere();
+                                    ;
+
+//                                    sphere.DrawSphere(0.3f, 32, 32);
+
+                                }
+                                GL11.glPopMatrix();
+                            }
+                            GL11.glPopMatrix();
+                        }
+                        GL11.glPopMatrix();
+                    }
+                    GL11.glPopMatrix();
+                }
+                GL11.glPopMatrix();
+
+                // pelvis
+                // right hip
+                GL11.glColor3f(blue[0], blue[1], blue[2]);
+                GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(blue));
+                GL11.glPushMatrix();
+                {
+                    GL11.glTranslatef(-0.5f, -0.2f, 0.0f);
+                    GL11.glTexParameteri(
+                            GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T,
+                            GL11.GL_REPEAT);
+                    Color.white.bind();
+                    getTextures().get("default_cobble").bind();
+                    ;
+                    GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
+
+                    s12.DrawTexSphere();
+                    ;
+
+//                    sphere.DrawSphere(0.25f, 32, 32);
+
+
+                    // right high leg
+                    GL11.glColor3f(orange[0], orange[1], orange[2]);
+                    GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(orange));
+                    GL11.glPushMatrix();
+                    {
+                        GL11.glTranslatef(0.0f, 0.0f, 0.0f);
+                        GL11.glRotatef(0.0f, 0.0f, 0.0f, 0.0f);
+
+
+                        GL11.glRotatef((LimbRotation / 2) + 90, 1.0f, 0.0f, 0.0f);
+                        //   GL11.glRotatef(90.0f,1.0f,0.0f,0.0f);
+
+                        c8.DrawCylinder();
+
+
+                        // right knee
+                        GL11.glColor3f(blue[0], blue[1], blue[2]);
+                        GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(blue));
+                        GL11.glPushMatrix();
+                        {
+                            GL11.glTranslatef(0.0f, 0.0f, 0.75f);
+                            GL11.glRotatef(0.0f, 0.0f, 0.0f, 0.0f);
+                            GL11.glTexParameteri(
+                                    GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T,
+                                    GL11.GL_REPEAT);
+                            Color.white.bind();
+                            getTextures().get("default_cobble").bind();
+                            ;
+                            GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
+
+                            s13.DrawTexSphere();
+                            ;
+//                            sphere.DrawSphere(0.25f, 32, 32);
+
+                            //right low leg
+                            GL11.glColor3f(orange[0], orange[1], orange[2]);
+                            GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(orange));
+                            GL11.glPushMatrix();
+                            {
+                                GL11.glTranslatef(0.0f, 0.0f, 0.0f);
+                                // GL11.glRotatef(120.0f,1.0f,0.0f,0.0f);
+                                //  GL11.glRotatef(0.0f,0.0f,0.0f,0.0f);
+
+                                c9.DrawCylinder();
+
+                                // left foot
+                                GL11.glColor3f(blue[0], blue[1], blue[2]);
+                                GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, Utils.ConvertForGL(blue));
+                                GL11.glPushMatrix();
+                                {
+                                    GL11.glTranslatef(0.0f, 0.0f, 0.75f);
+                                    GL11.glTexParameteri(
+                                            GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T,
+                                            GL11.GL_REPEAT);
+                                    Color.white.bind();
+                                    getTextures().get("default_cobble").bind();
+                                    ;
+                                    GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
+
+                                    s14.DrawTexSphere();
+                                    ;
+//                                    sphere.DrawSphere(0.3f, 32, 32);
+
+                                }
+                                GL11.glPopMatrix();
+                            }
+                            GL11.glPopMatrix();
+                        }
+                        GL11.glPopMatrix();
+                    }
+                    GL11.glPopMatrix();
+                }
+                GL11.glPopMatrix();
+
+            }
+            GL11.glPopMatrix();
+
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Scene/Objects/Player.java b/src/Scene/Objects/Player.java
index c775a05..07339d4 100644
--- a/src/Scene/Objects/Player.java
+++ b/src/Scene/Objects/Player.java
@@ -145,6 +145,12 @@ public class Player extends SceneObject {
                         t = (current_time - start_time) / 10;
                         h = (speed * t - 0.5 * g * t * t) / 10000;
                         jump_height = (float) h;
+                        setShadowOffset(new Vector4f(
+                                -jump_height * 90,
+                                0,
+                                -jump_height * 90,
+                                0
+                        ));
                         long end = System.currentTimeMillis();
                         while (end - start < 16) {
                             try {
diff --git a/src/Scene/Scene.java b/src/Scene/Scene.java
index b3fa022..92171fc 100644
--- a/src/Scene/Scene.java
+++ b/src/Scene/Scene.java
@@ -329,6 +329,55 @@ public class Scene {
                 textures
         ));
 
+        sceneManager.addSceneObject(new BookTable(
+                new Point4f(1000, 90f, -500, 0),
+                new Point4f(0, 0, 0, 0),
+                new Vector4f(90f, 90f, 90f, 0),
+                new Vector4f(0,0,0, 0),
+                textures
+        ));
+        sceneManager.addSceneObject(new Book(
+                new Point4f(1000, 250f, -500, 0),
+                new Point4f(0, 0, 0, 0),
+                new Vector4f(90f, 90f, 90f, 0),
+                new Vector4f(0,1,0, 90),
+                textures
+        ));
+
+        sceneManager.addSceneObject(new BookShelf(
+                new Point4f(1000, 90f, -500, 0),
+                new Point4f(0, 0, 0, 0),
+                new Vector4f(90f, 90f, 90f, 0),
+                new Vector4f(0,1,0, 90),
+                textures
+        ));
+
+
+        sceneManager.addSceneObject(new BookTable(
+                new Point4f(-1000, 90f, -500, 0),
+                new Point4f(0, 0, 0, 0),
+                new Vector4f(90f, 90f, 90f, 0),
+                new Vector4f(0,0,0, 0),
+                textures
+        ));
+        sceneManager.addSceneObject(new Book(
+                new Point4f(-1000, 250f, -500, 0),
+                new Point4f(0, 0, 0, 0),
+                new Vector4f(90f, 90f, 90f, 0),
+                new Vector4f(0,1,0, -90),
+                textures
+        ));
+
+        sceneManager.addSceneObject(new BookShelf(
+                new Point4f(-1000, 90f, -500, 0),
+                new Point4f(0, 0, 0, 0),
+                new Vector4f(90f, 90f, 90f, 0),
+                new Vector4f(0,1,0, -90),
+                textures
+        ));
+
+
+
         for (int i = -9; i < 10; i++) {
             sceneManager.addSceneObject(new BookTable(
                     new Point4f(500 * i, 90f, 4500, 0),
@@ -421,6 +470,51 @@ public class Scene {
                 textures
         ));
 
+//        sceneManager.addSceneObject(new NPC(
+//                new Point4f(-2700, 130, 2500, 0),
+//                new Point4f(0, 0, 0, 0),
+//                new Vector4f(90, 90, 90, 0),
+//                textures
+//        ));
+        sceneManager.addSceneObject(new NPC2(
+                new Point4f(400, 130, -2000, 0),
+                new Point4f(0, 0, 0, 0),
+                new Vector4f(90, 90, 90, 0),
+                textures
+        ));
+        sceneManager.addSceneObject(new NPC2(
+                new Point4f(800, 130, -2000, 0),
+                new Point4f(0, 0, 0, 0),
+                new Vector4f(90, 90, 90, 0),
+                textures
+        ));
+        sceneManager.addSceneObject(new NPC2(
+                new Point4f(1200, 130, -2000, 0),
+                new Point4f(0, 0, 0, 0),
+                new Vector4f(90, 90, 90, 0),
+                textures
+        ));
+        sceneManager.addSceneObject(new NPC2(
+                new Point4f(-400, 130, -2000, 0),
+                new Point4f(0, 0, 0, 0),
+                new Vector4f(90, 90, 90, 0),
+                textures
+        ));
+        sceneManager.addSceneObject(new NPC2(
+                new Point4f(-800, 130, -2000, 0),
+                new Point4f(0, 0, 0, 0),
+                new Vector4f(90, 90, 90, 0),
+                textures
+        ));
+        sceneManager.addSceneObject(new NPC2(
+                new Point4f(-1200, 130, -2000, 0),
+                new Point4f(0, 0, 0, 0),
+                new Vector4f(90, 90, 90, 0),
+                textures
+        ));
+
+
+
         new Thread(new Runnable() {
             @Override
             public void run() {
diff --git a/src/Scene/base/SceneObject.java b/src/Scene/base/SceneObject.java
index 7565261..9c0232e 100644
--- a/src/Scene/base/SceneObject.java
+++ b/src/Scene/base/SceneObject.java
@@ -28,6 +28,7 @@ public abstract class SceneObject implements IDrawable, IMovable, IScalable, IHi
     private Vector4f rotation = new Vector4f();
     private HashMap<String, Texture> textures = new LinkedHashMap<>();
     private DisplayListOval shadow;
+    private Vector4f shadowOffset = new Vector4f();
 
     public SceneObject(Point4f origin, Point4f position, Vector4f scale) {
         this.origin = new Point4f(origin.x, origin.y, origin.z, 0);
@@ -130,7 +131,7 @@ public abstract class SceneObject implements IDrawable, IMovable, IScalable, IHi
         GL11.glTranslatef(position.x, position.y, position.z);
         GL11.glScalef(1 / scale.x, 1 / scale.y, 1 / scale.z);
         GL11.glTranslatef(0, -origin.y, 0);
-        GL11.glTranslatef(-140f, 2f, -140f);
+        GL11.glTranslatef(-140f + shadowOffset.x, 2f + shadowOffset.y, -140f + shadowOffset.z);
         GL11.glRotatef(-45, 0,1,0);
         GL11.glScalef(2f, 0f, 1f);
 
@@ -203,4 +204,12 @@ public abstract class SceneObject implements IDrawable, IMovable, IScalable, IHi
     public Vector4f getRotation() {
         return rotation;
     }
+
+    public Vector4f getShadowOffset() {
+        return shadowOffset;
+    }
+
+    public void setShadowOffset(Vector4f shadowOffset) {
+        this.shadowOffset = shadowOffset;
+    }
 }
diff --git a/src/base/obj/OBJLoader.java b/src/base/obj/OBJLoader.java
index d922ad1..86b606a 100644
--- a/src/base/obj/OBJLoader.java
+++ b/src/base/obj/OBJLoader.java
@@ -42,15 +42,6 @@ import static org.lwjgl.opengl.GL15.*;
 
 public class OBJLoader {
 
-
-    private static FloatBuffer reserveData(int size) {
-        return BufferUtils.createFloatBuffer(size);
-    }
-
-    private static float[] asFloats(Vector3f v) {
-        return new float[]{v.x, v.y, v.z};
-    }
-
     private static Vector3f parseVertex(String line) {
         String[] xyz = line.split(" ");
         float x = Float.valueOf(xyz[1]);
diff --git a/src/main/Engine.java b/src/main/Engine.java
index c28954b..13d2b37 100644
--- a/src/main/Engine.java
+++ b/src/main/Engine.java
@@ -12,6 +12,7 @@ import org.lwjgl.LWJGLException;
 import org.lwjgl.Sys;
 import org.lwjgl.opengl.*;
 import org.lwjgl.util.vector.Matrix4f;
+import org.lwjgl.util.vector.Vector3f;
 import org.newdawn.slick.Color;
 import org.newdawn.slick.opengl.Texture;
 
@@ -22,11 +23,14 @@ import java.util.LinkedHashMap;
 
 import static main.Main.camera;
 import static main.ShaderLoader.loadShaders;
+import static org.lwjgl.opengl.ARBFramebufferObject.*;
+import static org.lwjgl.opengl.ARBFramebufferObject.GL_FRAMEBUFFER;
 import static org.lwjgl.opengl.ARBShadowAmbient.GL_TEXTURE_COMPARE_FAIL_VALUE_ARB;
 import static org.lwjgl.opengl.GL11.*;
 import static org.lwjgl.opengl.GL12.GL_CLAMP_TO_EDGE;
-import static org.lwjgl.opengl.GL14.GL_DEPTH_TEXTURE_MODE;
-import static org.lwjgl.util.glu.GLU.gluPerspective;
+import static org.lwjgl.opengl.GL14.*;
+import static org.lwjgl.opengl.GL14.GL_COMPARE_R_TO_TEXTURE;
+import static org.lwjgl.util.glu.GLU.*;
 
 /**
  * @Author: WangYuyang
@@ -150,7 +154,7 @@ public class Engine {
         glEnable(GL13.GL_MULTISAMPLE);
 //        Display.setResizable(true);
         glClear(GL_COLOR_BUFFER_BIT);
-        shadowTexture = glGenTextures();
+
 
         GL11.glMatrixMode(GL_PROJECTION);
         GL11.glLoadIdentity();
@@ -246,6 +250,8 @@ public class Engine {
         spec.rewind();
         direction.put(new float[]{0f, 0f, -1f, 0});
         direction.rewind();
+
+//        setUpFrameBufferObject();
     }
 
     public void enterModelView() {
@@ -303,7 +309,219 @@ public class Engine {
         Display.destroy();
         System.exit(0);
     }
-
+//    /**
+//     * Sets up the OpenGL states.
+//     */
+//    private static void setUpFrameBufferObject() {
+//        final int MAX_RENDERBUFFER_SIZE = glGetInteger(GL_MAX_RENDERBUFFER_SIZE);
+//        final int MAX_TEXTURE_SIZE = glGetInteger(GL_MAX_TEXTURE_SIZE);
+//        /**
+//         * Cap the maximum shadow map size at 1024x1024 pixels or at the maximum render buffer size. If you have a good
+//         * graphics card, feel free to increase this value. The program will lag
+//         * if I record and run the program at the same time with higher values.
+//         */
+//        if (MAX_TEXTURE_SIZE > 1024) {
+//            if (MAX_RENDERBUFFER_SIZE < MAX_TEXTURE_SIZE) {
+//                shadowMapWidth = shadowMapHeight = MAX_RENDERBUFFER_SIZE;
+//            } else {
+//                shadowMapWidth = shadowMapHeight = 1024;
+//            }
+//        } else {
+//            shadowMapWidth = shadowMapHeight = MAX_TEXTURE_SIZE;
+//        }
+//        // Generate and bind a frame buffer.
+//        frameBuffer = glGenFramebuffers();
+//        glBindFramebuffer(GL_FRAMEBUFFER, frameBuffer);
+//        // Generate and bind a render buffer.
+//        renderBuffer = glGenRenderbuffers();
+//        glBindRenderbuffer(GL_RENDERBUFFER, renderBuffer);
+//        // Set the internal storage format of the render buffer to a depth component of 32 bits (4 bytes).
+//        glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT32, shadowMapWidth, shadowMapHeight);
+//        // Attach the render buffer to the frame buffer as a depth attachment. This means that, if the frame buffer is
+//        // bound, any depth texture values will be copied to the render buffer object.
+//        glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, renderBuffer);
+//        // OpenGL shall make no amendment to the colour or multisample buffer.
+//        glDrawBuffer(GL_NONE);
+//        // Disable the colour buffer for pixel read operations (such as glReadPixels or glCopyTexImage2D).
+//        glReadBuffer(GL_NONE);
+//        // Check for frame buffer errors.
+//        int FBOStatus = glCheckFramebufferStatus(GL_FRAMEBUFFER);
+//        if (FBOStatus != GL_FRAMEBUFFER_COMPLETE) {
+//            System.err.println("Framebuffer error: " + gluErrorString(glGetError()));
+//        }
+//        // Bind the default frame buffer, which is used for ordinary drawing.
+//        glBindFramebuffer(GL_FRAMEBUFFER, 0);
+//    }
+//
+//    private static void generateTextureCoordinates() {
+//        glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+//        // Compare the texture coordinate 'r' (the distance from the light to the surface of the object) to the
+//        // value in the depth buffer.
+//        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE);
+//        // Enable 's' texture coordinate generation.
+//        glEnable(GL_TEXTURE_GEN_S);
+////        // Enable 't' texture coordinate generation.
+//        glEnable(GL_TEXTURE_GEN_T);
+////        // Enable 'r' texture coordinate generation.
+//        glEnable(GL_TEXTURE_GEN_R);
+////        // Enable 'q' texture coordinate generation.
+//        glEnable(GL_TEXTURE_GEN_Q);
+//        textureBuffer.clear();
+//        textureBuffer.put(0, depthModelViewProjection.m00);
+//        textureBuffer.put(1, depthModelViewProjection.m01);
+//        textureBuffer.put(2, depthModelViewProjection.m02);
+//        textureBuffer.put(3, depthModelViewProjection.m03);
+//
+//        glTexGen(GL_S, GL_EYE_PLANE, textureBuffer);
+//
+//        textureBuffer.put(0, depthModelViewProjection.m10);
+//        textureBuffer.put(1, depthModelViewProjection.m11);
+//        textureBuffer.put(2, depthModelViewProjection.m12);
+//        textureBuffer.put(3, depthModelViewProjection.m13);
+//
+//        glTexGen(GL_T, GL_EYE_PLANE, textureBuffer);
+//
+//        textureBuffer.put(0, depthModelViewProjection.m20);
+//        textureBuffer.put(1, depthModelViewProjection.m21);
+//        textureBuffer.put(2, depthModelViewProjection.m22);
+//        textureBuffer.put(3, depthModelViewProjection.m23);
+//
+//        glTexGen(GL_R, GL_EYE_PLANE, textureBuffer);
+//
+//        textureBuffer.put(0, depthModelViewProjection.m30);
+//        textureBuffer.put(1, depthModelViewProjection.m31);
+//        textureBuffer.put(2, depthModelViewProjection.m32);
+//        textureBuffer.put(3, depthModelViewProjection.m33);
+//
+//        glTexGen(GL_Q, GL_EYE_PLANE, textureBuffer);
+//    }
+//
+//    /**
+//     * Generate the shadow map.
+//     *
+//     * @param renderProgram
+//     */
+//    private static void drawShadowMap(RenderProgramStatement renderProgram) {
+//        /**
+//         * The model-view matrix of the light.
+//         */
+//        FloatBuffer lightModelView = BufferUtils.createFloatBuffer(16);
+//        /**
+//         * The projection matrix of the light.
+//         */
+//        FloatBuffer lightProjection = BufferUtils.createFloatBuffer(16);
+//        Matrix4f lightProjectionTemp = new Matrix4f();
+//        Matrix4f lightModelViewTemp = new Matrix4f();
+//        /**
+//         * The radius that encompasses all the objects that cast shadows in the scene. There should
+//         * be no object farther away than 50 units from [0, 0, 0] in any direction.
+//         * If an object exceeds the radius, the object may cast shadows wrongly.
+//         */
+//        float sceneBoundingRadius = 1500;
+//        /**
+//         * The distance from the light to the scene, assuming that the scene is located
+//         * at [0, 0, 0]. Using the Pythagorean theorem, the distance is calculated by taking the square-root of the
+//         * sum of each of the components of the light position squared.
+//         */
+//        float lightToSceneDistance = (float) Math.sqrt(lightPosition.get(0) * lightPosition.get(0) +
+//                lightPosition.get(1) * lightPosition.get(1) +
+//                lightPosition.get(2) * lightPosition.get(2));
+//
+//        /**
+//         * The distance to the object that is nearest to the camera. This excludes objects that do not cast shadows.
+//         * This will be used as the zNear parameter in gluPerspective.
+//         */
+//        float nearPlane = lightToSceneDistance - sceneBoundingRadius;
+//        if (nearPlane < 0) {
+//            System.err.println("Camera is too close to scene. A valid shadow map cannot be generated.");
+//        }
+//        /**
+//         * The field-of-view of the shadow frustum in degrees. Formula taken from the OpenGL SuperBible.
+//         */
+//        float fieldOfView = (float) Math.toDegrees(2.0F * Math.atan(sceneBoundingRadius / lightToSceneDistance));
+//        glMatrixMode(GL_PROJECTION);
+//        // Store the current projection matrix.
+//        glPushMatrix();
+//        glLoadIdentity();
+//        // Generate the 'shadow frustum', a perspective projection matrix that shows all the objects in the scene.
+//        gluPerspective(fieldOfView, 1, nearPlane, nearPlane + sceneBoundingRadius * 2);
+//        // Store the shadow frustum in 'lightProjection'.
+//        glGetFloat(GL_PROJECTION_MATRIX, lightProjection);
+//        glMatrixMode(GL_MODELVIEW);
+//        // Store the current model-view matrix.
+//        glPushMatrix();
+//        glLoadIdentity();
+//        // Have the 'shadow camera' look toward [0, 0, 0] and be location at the light's position.
+//        gluLookAt(lightPosition.get(0), lightPosition.get(1), lightPosition.get(2), 0, 0, 0, 0, 1, 0);
+//        glGetFloat(GL_MODELVIEW_MATRIX, lightModelView);
+//        // Set the view port to the shadow map dimensions so no part of the shadow is cut off.
+//        glViewport(0, 0, shadowMapWidth, shadowMapHeight);
+//        // Bind the extra frame buffer in which to store the shadow map in the form a depth texture.
+//        glBindFramebuffer(GL_FRAMEBUFFER, frameBuffer);
+//        // Clear only the depth buffer bit. Clearing the colour buffer is unnecessary, because it is disabled (we
+//        // only need depth components).
+//        glClear(GL_DEPTH_BUFFER_BIT);
+//        // Store the current attribute state.
+//        glPushAttrib(GL_ALL_ATTRIB_BITS);
+//        {
+//            // Disable smooth shading, because the shading in a shadow map is irrelevant. It only matters where the
+//            // shape
+//            // vertices are positioned, and not what colour they have.
+//            glShadeModel(GL_FLAT);
+//            // Enabling all these lighting states is unnecessary for reasons listed above.
+//            glDisable(GL_LIGHTING);
+//            glDisable(GL_COLOR_MATERIAL);
+//            glDisable(GL_NORMALIZE);
+//            // Disable the writing of the red, green, blue, and alpha colour components,
+//            // because we only need the depth component.
+//            glColorMask(false, false, false, false);
+//            // An offset is given to every depth value of every polygon fragment to prevent a visual quirk called
+//            // 'shadow
+//            // acne'.
+//            glEnable(GL_POLYGON_OFFSET_FILL);
+//            // Draw the objects that cast shadows.
+//            renderProgram.renderScene(16);
+//
+//            /**
+//             * Copy the pixels of the shadow map to the frame buffer object depth attachment.
+//             *  int target -> GL_TEXTURE_2D
+//             *  int level  -> 0, has to do with mip-mapping, which is not applicable to shadow maps
+//             *  int internalformat -> GL_DEPTH_COMPONENT
+//             *  int x, y -> 0, 0
+//             *  int width, height -> shadowMapWidth, shadowMapHeight
+//             *  int border -> 0
+//             */
+////            shadowTexture = glGenTextures();
+////            glBindTexture(GL_TEXTURE_2D, shadowTexture);
+//            glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, 0, 0, shadowMapWidth, shadowMapHeight, 0);
+////            glBindTexture(GL_TEXTURE_2D, 0);
+//
+//
+//            // Restore the previous model-view matrix.
+//            glPopMatrix();
+//            glMatrixMode(GL_PROJECTION);
+//            // Restore the previous projection matrix.
+//            glPopMatrix();
+//            glMatrixMode(GL_MODELVIEW);
+//            glBindFramebuffer(GL_FRAMEBUFFER, 0);
+//        }// Restore the previous attribute state.
+//        glPopAttrib();
+//        // Restore the view port.
+//        glViewport(0, 0, Display.getWidth(), Display.getHeight());
+//        lightProjectionTemp.load(lightProjection);
+//        lightModelViewTemp.load(lightModelView);
+//        lightProjection.flip();
+//        lightModelView.flip();
+//        depthModelViewProjection.setIdentity();
+//        // [-1,1] -> [-0.5,0.5] -> [0,1]
+//        depthModelViewProjection.translate(new Vector3f(0.5F, 0.5F, 0.5F));
+//        depthModelViewProjection.scale(new Vector3f(0.5F, 0.5F, 0.5F));
+//        // Multiply the texture matrix by the projection and model-view matrices of the light.
+//        Matrix4f.mul(depthModelViewProjection, lightProjectionTemp, depthModelViewProjection);
+//        Matrix4f.mul(depthModelViewProjection, lightModelViewTemp, depthModelViewProjection);
+//        // Transpose the texture matrix.
+//        Matrix4f.transpose(depthModelViewProjection, depthModelViewProjection);
+//    }
     public void render(RenderProgramStatement renderProgram) {
         glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
         GL11.glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
@@ -320,7 +538,6 @@ public class Engine {
 //        glPushAttrib(GL_ALL_ATTRIB_BITS);
 //        {
 //            generateTextureCoordinates();
-//
 //            drawShadowMap(renderProgram);
 //
 //
@@ -357,9 +574,8 @@ public class Engine {
         GL11.glLoadIdentity();
         //Placing 0,0 at the center of the screen
 //        GL11.glOrtho(1200 / 2 - OrthoNumber, OrthoNumber / 2, (800 / 2 - (OrthoNumber * 0.66f)), (OrthoNumber / 2 * 0.66f), 100000, -100000);
-//        GL11.glOrtho(1200 - OrthoNumber, OrthoNumber, (800 - (OrthoNumber * 0.66f)), (OrthoNumber * 0.66f), 100000, -100000);F
+//        GL11.glOrtho(1200 - OrthoNumber, OrthoNumber, (800 - (OrthoNumber * 0.66f)), (OrthoNumber * 0.66f), 100000, -100000);
         gluPerspective((float) 60, Display.getWidth() / Display.getHeight(), zNear, zFar);
-
 //            GL11.glOrtho(-600 - OrthoNumber, 600 + OrthoNumber, -100 - OrthoNumber * 0.66, 700 + OrthoNumber * 0.66, 100000, -100000);
         enterModelView();
 //        }
diff --git a/src/main/Main.java b/src/main/Main.java
index 6505e0b..00e621a 100644
--- a/src/main/Main.java
+++ b/src/main/Main.java
@@ -15,6 +15,7 @@ import java.util.ArrayList;
 
 import static org.lwjgl.opengl.GL11.glLoadIdentity;
 import static org.lwjgl.opengl.GL11.glPointSize;
+import static org.lwjgl.opengl.GL20.glUseProgram;
 
 /**
  * @Author: WangYuyang
@@ -91,18 +92,18 @@ public class Main {
         key_positions.add(new Vector4f(-3000, 100, 5000, 2000));
         key_rotations.add(new Vector4f(0, -180, 0, 2000));
 
-
-        key_positions.add(new Vector4f(0, 7000, 0, 2000));
-        key_rotations.add(new Vector4f(90, 0, 0, 2000));
-
-        key_positions.add(new Vector4f(0, 7000, 0, 2000));
-        key_rotations.add(new Vector4f(90, 180, 0, 2000));
-
-        key_positions.add(new Vector4f(0, 7000, 0, 1000));
-        key_rotations.add(new Vector4f(90, 180, 45, 1000));
-
-        key_positions.add(new Vector4f(0, 7000, 0, 1000));
-        key_rotations.add(new Vector4f(90, 180, -45, 1000));
+//
+//        key_positions.add(new Vector4f(0, 7000, 0, 2000));
+//        key_rotations.add(new Vector4f(90, 0, 0, 2000));
+//
+//        key_positions.add(new Vector4f(0, 7000, 0, 2000));
+//        key_rotations.add(new Vector4f(90, 180, 0, 2000));
+//
+//        key_positions.add(new Vector4f(0, 7000, 0, 1000));
+//        key_rotations.add(new Vector4f(90, 180, 45, 1000));
+//
+//        key_positions.add(new Vector4f(0, 7000, 0, 1000));
+//        key_rotations.add(new Vector4f(90, 180, -45, 1000));
 
 
         key_positions.add(new Vector4f(0, 500, -1000, 4000));
diff --git a/src/main/ShaderLoader.java b/src/main/ShaderLoader.java
index 59247df..a44267d 100644
--- a/src/main/ShaderLoader.java
+++ b/src/main/ShaderLoader.java
@@ -24,6 +24,7 @@ public class ShaderLoader {
 
     public static void loadShaders() {
         loadShader(0, "shader.vs", "shader.fs");
+//        loadShader(1, "invert.vsh", "invert.fsh");
 
 
         System.out.println("Shaders load ok.");