A key factor to always keep in mind during the modeling process is that the number of polygon faces and vertices that an object contains has a profound effect on your computer resources.

The more complex an object is the slower your system will react during the creation and rendering process. It is imperative to keep the face/vertex count to a minimum in each scene.

Several methods for keeping the models small are:

Break up large scenes into smaller files.

Do not create or import objects that will not be seen.

Do not create detail too small for the viewing resolution

When using Primitive Objects, reduce the number of segments.

When lofting objects, use Optimize or appropriately reduce path and shape steps.

When importing objects, use the Optimize modifier.

Whether or not architecture is your chosen profession, you will often be called upon to create buildings or structures, real or fantasy, for backdrops to your scenes. We will present some of the concepts of creating structures with 3D programs and offer some helpful tips and methods for making the process more productive.

First learn the concepts, so you can apply them to specific methods of modeling in later projects. There are essentially three approaches you can take to create buildings and structures:

Start with 2D floor plan views and extrude for wall height.

Start with 2D wall elevation views and extrude for wall thickness.

Start with 3D CAD models.

You should know all the three methods to have a full variety of tools and different options. There is no right or wrong way of producing pr 3D renderings.

In the real world, you will use a combination of methods.