The problem you're running into is that the Shadow Quality needs to be increased. This will cause the shadows to look bad. In your project, go to the 3D Invigorator Pro interface, then go into Object Mode. Then, go into the "User Prefs" menu. For Shadow Quality, set the value to "4000", and your shadows will look much better. Then, for your After Effects Spot Light, add some Shadow Diffusion, and your shadows will look great.