Okay, here's a simple explanation:

You can consider a non-parallel plate capacitor as multiple parallel plate conductors, connected in parallel, with the distance between them increasing slightly for each capacitor.

You get the net capacitance as the average of the minimum capacitance (based on the minimum distance b/w the plates) and maximum capcitance (based on the maximum distance b/w the plates) if the plates are flat. If they aren't flat, you need to integrate over the surface of the plates.

Parallel Plate Capacitors
I was watching a tutorial on the 3D Extrude &amp; Bevel Options and I did not understand how Perspective work. I know it's viewing something at an angle, but I don't see from where it references it from. 

I placed the object in front and left position, and at these basic positions, the perspective option only becomes more mysterious to me. 

What exactly is going on?

Thank you. 
