[DirectX 6 Programmer's Reference] Filter Sample (35.3803298929526%)
DirectX Foundation > Direct3D Immediate Mode > Direct3D Immediate Mode Samples
[DirectX 7 Programmer's Reference] Filter Sample (31.0420915245942%)
Microsoft DirectX 7.0 > Direct3D > Direct3D Immediate Mode > Direct3D Immediate Mode Tools and Samples > Direct3D Immediate Mode C++ Samples
[DirectX October 2006 Documentation] Filter (24.316976127321%)
DirectX SDK > Introducing DirectX 9.0 > Namespaces > Microsoft.DirectX.Direct3D > Enumerations