diff --git a/src/main.cpp b/src/main.cpp
index 3729aee..c49de04 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,29 +1,45 @@
 /*
-* This template contains code for creating an empty 
-* window in OpenGL. 
-*/
+ * This template contains code for creating an empty
+ * window in OpenGL.
+ */
 
+#include "classes/ElementBufferObject.h"
+#include "classes/VertexArrayObject.h"
+#include "classes/VertexBufferObject.h"
 #include "glad/glad.h"
 #include "GLFW/glfw3.h"
 #include "classes/Classes.h"
 
-// Prototypes. 
+// Prototypes.
 void framebuffer_size_callback(GLFWwindow *window, int width, int height);
 void processInput(GLFWwindow *window);
 
-// Constants. 
+// Constants.
 const unsigned int WINDOW_WIDTH = 800;
 const unsigned int WINDOW_HEIGHT = 600;
 
+float vertices[] = {
+     1.0f,  1.0f, 0.0f,  // top right
+     1.0f, -1.0f, 0.0f,  // bottom right
+    -1.0f, -1.0f, 0.0f,  // bottom left
+    -1.0f,  1.0f, 0.0f   // top left 
+};
+
+unsigned int indices[] = {
+    0, 1, 3, // first Triangle
+    1, 2, 3  // second Triangle
+};
+
 int main(void) {
-    // Initialisation and configuration. 
+    // Initialisation and configuration.
     glfwInit();
     glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
     glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
     glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
 
-    // Create window. 
-    GLFWwindow *window = glfwCreateWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Learn Shaders", NULL, NULL);
+    // Create window.
+    GLFWwindow *window = glfwCreateWindow(WINDOW_WIDTH, WINDOW_HEIGHT,
+                                          "Learn Shaders", NULL, NULL);
     if (window == NULL) {
         LogInfo("Failed to create GLFW window.");
         glfwTerminate();
@@ -33,21 +49,42 @@ int main(void) {
     glfwMakeContextCurrent(window);
     glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
     if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) {
-        LogInfo("Failed to initialise GLAD."); 
+        LogInfo("Failed to initialise GLAD.");
         return -1;
     }
 
+    // Shader stuff. 
+    Shader shader("../src/shaders/vertexShader.vert.glsl", "../src/shaders/fragmentShader.frag.glsl");
+
+    VertexArrayObject VAO;
+    VAO.Bind();
+    VertexBufferObject VBO(vertices, sizeof(vertices));
+    VBO.Bind();
+    ElementBufferObject EBO(indices, sizeof(indices));
+    EBO.Bind();
+
+    VAO.LinkVBO(VBO, 0);
+
+    // while loop goes here.
     while (!glfwWindowShouldClose(window)) {
         processInput(window);
-
         glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
         glClear(GL_COLOR_BUFFER_BIT);
 
+        shader.Activate();
+        VAO.Bind();
+        glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
+
         glfwSwapBuffers(window);
         glfwPollEvents();
     }
-
+    
+    VAO.Delete();
+    VBO.Delete();
+    EBO.Delete();
+    shader.Delete();
     glfwDestroyWindow(window);
+
     glfwTerminate();
     return 0;
 }
diff --git a/src/shaders/fragmentShader.frag.glsl b/src/shaders/fragmentShader.frag.glsl
index e69de29..394cb0f 100644
--- a/src/shaders/fragmentShader.frag.glsl
+++ b/src/shaders/fragmentShader.frag.glsl
@@ -0,0 +1,7 @@
+#version 330 core 
+
+out vec4 FragColour;
+
+void main() {
+    FragColour = vec4(1.0f, 0.0f, 1.0f, 1.0f);
+}
diff --git a/src/shaders/vertexShader.vert.glsl b/src/shaders/vertexShader.vert.glsl
index e69de29..1146e97 100644
--- a/src/shaders/vertexShader.vert.glsl
+++ b/src/shaders/vertexShader.vert.glsl
@@ -0,0 +1,7 @@
+#version 330 core 
+
+layout(location = 0) in vec3 aPos;
+
+void main() {
+    gl_Position = vec4(aPos, 1.0);
+}