Vertex buffer triangle

Window_practice/src/Main.cpp

@@ -9,10 +9,9 @@ int main(void){
         return -1;
     }    
 
-    //Main window
+    //Main window creation
     GLFWwindow* window;
 
-    //Window creation
     window = glfwCreateWindow(640, 480, "OpenGl practice", NULL, NULL);
     if (!window){
         std::cout << "Window could not be created!" << std::endl;
@@ -43,6 +42,11 @@ int main(void){
     glBindBuffer(GL_ARRAY_BUFFER, buffer); //binding the buffer
     glBufferData(GL_ARRAY_BUFFER, 6 * sizeof(float), positions, GL_STATIC_DRAW);
 
+    glEnableVertexAttribArray(0);
+    glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 2, 0);
+
+    glBindBuffer(GL_ARRAY_BUFFER, 0); //unbinding the buffer
+
    //Main loop
     while (!glfwWindowShouldClose(window)){
         /* Render here */