[DirectX 7 Programmer's Reference] Spherical Environment Mapping (59.8171701112878%)

Microsoft DirectX 7.0 > Direct3D > Direct3D Immediate Mode > Direct3D Immediate Mode Essentials > Common Techniques and Special Effects > Environment Mapping

[DirectX October 2006 Documentation] Spherical Environment Mapping (57.7450980392157%)

DirectX Graphics > Direct3D 9 > Programming Guide > Advanced Topics > Pixel Pipeline > Environment Mapping

[DirectX 5 Programmer's Reference] Spherical (20.0765930398856%)

DirectX Media > Direct3D Retained-Mode > Direct3D Retained-Mode Overview > Direct3D Retained-Mode Architecture > IDirect3DRMWrap Interface

[DirectX 3 Programmer's Reference] Spherical (18.379174049339%)

Direct3D > Retained-Mode Overview > Introduction to Direct3D Retained-Mode Objects > IDirect3DRMWrap Interface