Hardware Acceleration Level Constants

The Direct3DX hardware acceleration level constants represent pre-defined hardware acceleration levels and may be used as a default value anywhere a device index (DWORD) is required. The following table lists all of the hardware acceleration level constants provided by the Direct3DX utility library:

D3DX_DEFAULT

The highest level of acceleration available on the primary DirectDraw device.

D3DX_HWLEVEL_RASTER

Rasterization acceleration. In most cases, this will be the most useful level.

D3DX_HWLEVEL_REFERENCE

Reference implementation. This is the slowest level of acceleration.

D3DX_HWLEVEL_TL

Transform and lighting acceleration.

D3DX_HWLEVEL_2D

2-D acceleration only. Specifying this level will implement the RGB rasterizer.