Windows Vista’s Presentation Foundation graphics subsystem is built on Microsoft’s DirectX API. It was commonly used to develop system games for the Windows Environment. DirectX is a collection of Application Programming Interface to handle a distinct function. It has been extended to both general and high level graphics functionality. Two dimensional graphics are rendered through the Direct Draw API. This is creates bit mapped, graphics as used in past version of Windows. Three dimensional graphics are rendered via direct 3D API.
Direct 3D maintain a powerful 3D graphical features shut in vertex shading, pixel shading, geometry shading, bump mapping, fog and texture mapping. Windows Vista graphics subsystem relies on the direct 3D to render the three dimensional vector graphics of the vista desktop, Direct X components to control all aspects of the pc gaming environment. APIS include Direct Input, Direct Sound, Direct Music, Direct Animation, DirectX transform, Direct Play and Direct setup in Windows Vista.
