When using OpenGL render for previewing or rendering I have run into a few problems. The size of the shadow of the Sun Lamp is too small and the edges are jagged (pixelated). In the shadow options of the Sun Object Data
Shadow of the Sun in OpenGL

When using OpenGL render for previewing or rendering I have run into a few problems. The size of the shadow of the Sun Lamp is too small and the edges are jagged (pixelated). In the shadow options of the Sun Object Data