7. Drawing cube(s).md

• add vertex data
• modify vao accodingly
• bam! cube can be seen
• PROBLEM : depth is not considered
  • sol :
    • glEnable(GL_DEPTH_TEST);
    • glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

draw more cubes:

• how?
  • can add more vertices , but we can use one cube specification and draw multiple cubes
  • in draw function, add cube position data and then translate the cube accordingly in world space and draw the cube
  • iterate this process to get multiple cubes :)