Here, one of the final stages of architectural 3D visualizations is of concern. Architectural 3D rendering from the final scene or model calculates the final image/animation, which is suitable for the subsequent presentation purposes. Technically, it is a mathematical algorithm that, upon its calculation, takes into account the form features of a given scene along with the materials that were used for it. Upon object calculation, the normal orientation of their surfaces influencing the visibility of individual components and also the reflections of light as such is taken into account. Used materials then add on colour, relief structures or other special features simulating real surfaces such as reflectiveness, transparency or refraction etc.
Advanced rendering algorithms can simulate and add on effects ranging from the depth of sharpness to the special effects simulating caustic effects.

Basically, architectural 3D rendering may be divided into 2 categories and each one of them has its snags and specifics.

Architectural 3D rendering of interiors

Architectural 3D rendering of exteriors