Salam Aleykm, Autocad is for drawing sites and sections and such, these 2 dimensional lines are later exported from Cad and imported into a 3D application like Maya or Max which create 3 dimensional objects from those lines OR you can make the 3D model in Cad itself then import that into a 3D app then refine it because Cad is really poor in 3D. However all of that does not matter ( At least from my experience ) because you're a 3D animator, you should concentrate on animation only and excel in this field to be accepted in descent companies. Basically employees in Arch-Viz companies are separated to three main groups: -Those who are good in 3D modelling and understanding Cad drawings in order to turn them to 3D objects, there are plenty of these guys and they work like robots without getting much in terms of salary. -Those who are good in Rendering and Lighting to make the results look very realistic in the shortest time possible (this is a somewhat "advanced" field but a REALLY wanted one and they get very good salary). -Those who do animation and effects such as animating the car traffic and the people and the moving tree leafs and the water and the birds flying in the air ect.ect... (Also a very important and wanted field in the business). My advice concentrate on the 3D app and forget about architecture and Autocad altogether, then when you know your way around the app and can produce a good showreel the Arch companies will come running after you even if you don't know the basics of architecture. In Arch-viz What is usually used is: Autodesk 3D max. Vray. After-effects. Photoshop. Allah brings success.