3d Architectural rendering lights and stages scenes and produces images which is similar to a regular photography or cinematography. However, these scenes and photographs are imaginary which is created in a computer before it is rendered. This process produces an image based on three dimensional data which is already stored in a computer. It thus gives a very high scope to creativity where there is no limit to one’s imagination .One has full control of what to produce on the scene and how to depict it
Here’s a video of basic modeling for you to start of.
Professionals create the scene through modelling and animation before rendering them. The three dimensional data could be a complete scene like geometric models of a building, objects, landscapes or also some animate characters. An artist could either give it a real look by simulating lightening, shadows, colour or atmosphere or keep it abstract and make it appear as a painting. This is the artist’s personal choice.