Features. Refractions with the use of a du/dv map. Dynamic shadows. Directional lighting on world brushes using normal maps. Cube- Valve Developer Community
DirectX Versions (feature level) - Valve Developer Community download directx 81 offline installer link
: Download the Microsoft June 2010 Redistributable, extract it to a folder, and run DXSETUP.exe to install all missing legacy libraries. Features
DirectX Versions (feature level) - Valve Developer Community extract it to a folder