Direct3D is a component of DirectX but might not be included in the default DirectX distribution for all versions of Microsoft Windows. To be sure Direct3D is loaded, download it from Microsoft and install it on your workstation.
The viewer uses DirectX 9.0 or later, with PixelShader 2.0. or later. If the display controller does not support Direct3D, the viewer defaults to its internal viewing software.
To troubleshooting Direct3D, first make sure Direct3D is available. From Windows, go to Start/Run and type in dxdiag.exe. This tool lets you test functionality, diagnose problems and change your system configuration to work best. The Notes section reports any problems found with DirectX. Even if no problems with DirectX are reported, hardware acceleration may be unavailable and not supported by the hardware. Refer to your display controller documentation to verify support for the required features.
To check the viewer's Direct3D support setting:
Click Settings/Customized Settings/Advanced.
If the viewer determines your workstation does not support the required drivers and features, a warning appears when the viewer loads. Disable this warning by checking the box labeled Disable Direct3D warning message.
To disable Direct3D completely, check the box labeled Disable Direct3D. If the workstation supports some but not all of the required features, the viewer may experience problems. Disable Direct3D in these cases.