diff --git a/.classpath b/.classpath
index fceb480..59c46d7 100644
--- a/.classpath
+++ b/.classpath
@@ -2,5 +2,10 @@
 <classpath>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="lib" path="D:/Téléchargement/lwjgl/jar/lwjgl.jar" sourcepath="D:/Téléchargement/lwjgl/src.zip">
+		<attributes>
+			<attribute name="org.eclipse.jdt.launching.CLASSPATH_ATTR_LIBRARY_PATH_ENTRY" value="D:/Téléchargement/lwjgl/native"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="output" path="bin"/>
 </classpath>
diff --git a/shaders/pipe.frag b/shaders/pipe.frag
index 815d6a4..cb7e49f 100644
--- a/shaders/pipe.frag
+++ b/shaders/pipe.frag
@@ -14,12 +14,17 @@ uniform int top;
 
 void main()
 {
-	if (top == 1)
-		fs_in.tc.y = 1.0 - fs_in.tc.y;
+	vec2 myTc = vec2(fs_in.tc.x, fs_in.tc.y);
+	
+	if (top == 1) {
+		myTc.y = 1 - myTc.y;
+	}
 		
-	color = texture(tex, fs_in.tc);
+	color = texture(tex, myTc);
+	
 	if (color.w < 1.0)
 		discard;
+		
 	color *= 2.0 / (length(bird - fs_in.position.xy) + 1.5) + 0.5;
 	color.w = 1.0;
 }
\ No newline at end of file
diff --git a/src/com/thecherno/flappy/Main.java b/src/com/thecherno/flappy/Main.java
index e725f0e..8577346 100644
--- a/src/com/thecherno/flappy/Main.java
+++ b/src/com/thecherno/flappy/Main.java
@@ -5,10 +5,8 @@
 import static org.lwjgl.opengl.GL13.*;
 import static org.lwjgl.system.MemoryUtil.*;
 
-import java.nio.ByteBuffer;
-
-import org.lwjgl.glfw.GLFWvidmode;
-import org.lwjgl.opengl.GLContext;
+import org.lwjgl.glfw.GLFWVidMode;
+import org.lwjgl.opengl.GL;
 
 import com.thecherno.flappy.graphics.Shader;
 import com.thecherno.flappy.input.Input;
@@ -34,7 +32,7 @@ public void start() {
 	}
 	
 	private void init() {
-		if (glfwInit() != GL_TRUE) {
+		if (glfwInit() != true) {
 			System.err.println("Could not initialize GLFW!");
 			return;
 		}
@@ -46,14 +44,14 @@ private void init() {
 			return;
 		}
 		
-		ByteBuffer vidmode = glfwGetVideoMode(glfwGetPrimaryMonitor());
-		glfwSetWindowPos(window, (GLFWvidmode.width(vidmode) - width) / 2, (GLFWvidmode.height(vidmode) - height) / 2);
+		GLFWVidMode vidmode = glfwGetVideoMode(glfwGetPrimaryMonitor());
+		glfwSetWindowPos(window, (vidmode.width() - width) / 2, (vidmode.height() - height) / 2);
 		
 		glfwSetKeyCallback(window, new Input());
 		
 		glfwMakeContextCurrent(window);
 		glfwShowWindow(window);
-		GLContext.createFromCurrent();
+		GL.createCapabilities();
 		
  		glEnable(GL_DEPTH_TEST);
 		glActiveTexture(GL_TEXTURE1);
@@ -101,7 +99,7 @@ public void run() {
 				updates = 0;
 				frames = 0;
 			}
-			if (glfwWindowShouldClose(window) == GL_TRUE)
+			if (glfwWindowShouldClose(window) == true)
 				running = false;
 		}
 		
diff --git a/src/com/thecherno/flappy/graphics/Shader.java b/src/com/thecherno/flappy/graphics/Shader.java
index 725fb41..d6b6b28 100644
--- a/src/com/thecherno/flappy/graphics/Shader.java
+++ b/src/com/thecherno/flappy/graphics/Shader.java
@@ -66,7 +66,7 @@ public void setUniform3f(String name, Vector3f vector) {
 	
 	public void setUniformMat4f(String name, Matrix4f matrix) {
 		if (!enabled) enable();
-		glUniformMatrix4(getUniform(name), false, matrix.toFloatBuffer());
+		glUniformMatrix4fv(getUniform(name), false, matrix.toFloatBuffer());
 	}
 	
 	public void enable() {