I want to draw a 3-D grid composed of cubes to improve the perception of perspective and distance.
I tried to create a grid using large planes drawn as GL_QUADS. The problem with this method is that the planes are not always clipped properly by the frustum -they are often clipped irregularly in a manner that causes portions of plane not to be drawn.
Why is the clipping inconsistent?
What better way is there to draw a 3D grid?