[DirectX 7 Programmer's Reference] Plane Masking State (23.462431531317%)
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 (21.5110740652536%)
DirectX Foundation > Direct3D Immediate Mode > Direct3D Immediate Mode Essentials > Direct3D Devices > Using Devices > Rendering > Render States