[DirectX 7 Programmer's Reference] Plane Masking State (25.0885627530364%)
Microsoft DirectX 7.0 > Direct3D > Direct3D Immediate Mode > Direct3D Immediate Mode Essentials > Direct3D Devices > Device States > Render States
[DirectX 6 Programmer's Reference] Plane Masking State (22.8182636077373%)
DirectX Foundation > Direct3D Immediate Mode > Direct3D Immediate Mode Essentials > Direct3D Devices > Using Devices > Rendering > Render States