Silverlight platform (WPF/E) emerged as a branch of Windows Presentation Foundation platform. While WPF was essential to create well-established user interfaces of desktop applications, Silverlight was focused on Internet applications. A special feature of Silverlight technology is that it can work under various operational systems and browsers. Also, work of Silverlight application should not take a lot of system resources. So, a specificity of Silverlight technology is the realization of a powerful user interface based on the declarative markup for a wide variety of platforms with full compatibility between them.

All these conditions create certain restrictions for development and construction of the platform. First, the need to support several platforms simultaneously increases the amount of works to develop a platform and time spent on it. Secondly, Silverlight applications should consume a few (not too many) system resources. For these reasons the Silverlight functionality is less than WPF once from the beginning. Both versions 1.0 and 1.1 of Silverlight were basically focused on creation media applications. It was heavy to build any serious business solutions based on these platforms. Silverlight 2.0 already contained a set of control elements and tools for various business scenarios implementation. Nevertheless, until that time there was no possibility to work with 3D- graphics within Silverlight applications. Some tools which allow building user interfaces in a 3D mode have appeared in Silverlight 3.

In this article we will consider 3D-possibilities of Silverlight 3 for application programming. Approaches for building static 3D-projections and animations with 3D will be considered. Prototypes of user interfaces for business applications with use of 3D transformations in Silverlight will be also considered.