software recommendation - Anamorphic Design Process

I'm hoping that designers that can lend their expertise on anamorphic designs. It is not a new concept but not a lot of info on how it can be done easily.

What are the steps involved to create anamorphic 3D pop-out effects?

Is there a software out there that simplifies the process or do I need to use Photoshop or Illustrator?

I like to replicate the 3D floor graphics this company does below.

http://www.shapeshiftermedia.com/gallery/floor-graphics/nicole-neubauer-kellerkind-3d-advertising-floor-train-station/

http://www.shapeshiftermedia.com/downloads/