DirectX 9 includes many other features as well. Some, like displacement map support and tessellation of surfaces, were announced with the upcoming 3Dlabs and Matrox chips. Others, such as version 2.0 specs for vertex and pixel shaders and real-time animation blending, haven't yet been revealed in detail. There are also additions outside of Direct3D, the part of DirectX that many games use for 3D graphics support. Most notably, DirectMusic has seen some improvements for low-latency playback, there's more support for hardware video acceleration, and DirectPlay networking has been enhanced and ported to work on PocketPC 2002 handhelds. The most wide-ranging changes to Direct X traditionally happen with the even-numbered versions, so it's somewhat surprising to see even this many enhancements in DirectX 9.