[DirectX 7 Programmer's Reference] Plane Masking State (66.3461538461538%)
Microsoft DirectX 7.0 > Direct3D > Direct3D Immediate Mode > Direct3D Immediate Mode Essentials > Direct3D Devices > Device States > Render States
[DirectX October 2006 Documentation] Plane (22.8182636077373%)
DirectX SDK > Introducing DirectX 9.0 > Namespaces > Microsoft.DirectX.Direct3D > Classes > ClipPlane > Properties
[DirectX October 2006 Documentation] Plane (21.5110740652536%)
DirectX SDK > Introducing DirectX 9.0 > Namespaces > Microsoft.DirectX > Structures
[DirectX October 2006 Documentation] Plane (18.9721097615834%)
DirectX SDK > Introducing DirectX 9.0 > Namespaces > Microsoft.DirectX > Structures > Plane > Methods
[DirectX October 2006 Documentation] Plane (17.6649202190998%)
DirectX SDK > Introducing DirectX 9.0 > Namespaces > Microsoft.DirectX > Classes