diff --git a/includes/Window.hpp b/includes/Window.hpp
index 1f3d53a..f28efbe 100644
--- a/includes/Window.hpp
+++ b/includes/Window.hpp
@@ -26,7 +26,7 @@ class Window
 
 		GLFWwindow	*getWindow(void) const;
 		RT::Vec2i	getMousePos(void) const;
-
+		float		getFps(void) const;
 
 		void		display();
 		void		pollEvents();
@@ -40,6 +40,8 @@ class Window
 		GLFWwindow	*_window;
 		RT::Vec2i	_mousePos;
 
+		float		_fps;
+
 };
 
 #endif
\ No newline at end of file
diff --git a/shaders/frag.frag b/shaders/frag.frag
index f451bd0..c09c17d 100644
--- a/shaders/frag.frag
+++ b/shaders/frag.frag
@@ -51,7 +51,8 @@ void    main()
 	vec2    uv;
 	vec4    color;
 
-	uv = gl_FragCoord.xy / u_resolution.xy * 2.0 - 1.0;
+	uv = gl_FragCoord.xy / u_resolution.xy;
+    uv = uv * 2.0 - 1.0;
 	uv.x *= u_resolution.x / u_resolution.y;
 
 	vec3 rayOrigin = vec3(0.0, 0.0, 0.0); 
@@ -70,6 +71,6 @@ void    main()
         vec3 color = computeLighting(hitPoint, normal, viewDir);
         FragColor = vec4(color, 1.0);
     } else {
-        FragColor = vec4(0.0, 0.0, 0.0, 1.0); 
+        FragColor = vec4(0., 0.0, 0.0, 1.0); 
     }
 }
\ No newline at end of file
diff --git a/srcs/RT.cpp b/srcs/RT.cpp
index a991de2..7a02580 100644
--- a/srcs/RT.cpp
+++ b/srcs/RT.cpp
@@ -14,14 +14,17 @@
 
 int main(void)
 {
-	Window		window(WIDTH, HEIGHT, "RT_GPU", 1);
+	Window		window(WIDTH, HEIGHT, "RT_GPU", 0);
 	Shader		shader("shaders/vertex.vert", "shaders/frag.frag");
 	
 	shader.attach();
 
-	RT::Vec2f vertices[6] = {
-			{ -1.0f, -1.0f }, { 1.0f, -1.0f }, { -1.0f, 1.0f },
-			{ 1.0f, -1.0f }, { 1.0f,  1.0f }, { -1.0f, 1.0f }
+	// RT::Vec2f vertices[6] = {
+	// 		{ -1.0f, -1.0f }, { 1.0f, -1.0f }, { -1.0f, 1.0f },
+	// 		{ 1.0f, -1.0f }, { 1.0f,  1.0f }, { -1.0f, 1.0f }
+	// };
+	RT::Vec2f vertices[3] = {
+		{-1.0f, -1.0f}, {3.0f, -1.0f}, {-1.0f,  3.0f}
 	};
 	size_t size = sizeof(vertices) / sizeof(RT::Vec2f) / 3;
 
@@ -32,10 +35,11 @@ int main(void)
 		glClear(GL_COLOR_BUFFER_BIT);
 
 		shader.setVec2f("u_resolution", RT::Vec2f(WIDTH, HEIGHT));
-
 		glUseProgram(shader.getProgram());
 		shader.drawTriangles(size);
 
+		std::cout << "\rFPS: " << int(window.getFps()) << "        " << std::flush;
+
 		window.display();
 		window.pollEvents();
 	}
diff --git a/srcs/Window.cpp b/srcs/Window.cpp
index 1658b7c..e308bf0 100644
--- a/srcs/Window.cpp
+++ b/srcs/Window.cpp
@@ -85,9 +85,15 @@ void Window::mouseButtonCallback(GLFWwindow* window, int button, int action, int
     }
 }
 
-
 void Window::display()
 {
+	static double	lastTime = glfwGetTime();
+	double			currentTime = glfwGetTime();
+	double			delta = currentTime - lastTime;
+
+	lastTime = currentTime;
+	_fps = 1.0f / delta;
+
     glfwSwapBuffers(_window);
 }
 void Window::pollEvents()
@@ -107,3 +113,8 @@ RT::Vec2i	Window::getMousePos(void) const
 {
 	return (_mousePos);
 }
+
+float		Window::getFps(void) const
+{
+	return (_fps);
+}
\ No newline at end of file