3D rendering is an excellent method for demonstrating a product under development to different interest groups, even during the product development process.

These images are used in promotions before the commencement of production, while slightly lighter versions are often used in user instructions, for instance. These can be made in practically any size.

More detailed rendering and sub-assemblies are often used to support marketing, especially if a photograph of the product might possibly reveal too many confidential elements.

Credible and illustrative animations can also be created of the models for various purposes.