WereKitten on 13 January 2010
| Snesboy said: Excellent post. Do Valve games use openGL? |
Nope. The Source engine since its first incarnation used DirectX (7 to 9). On the other hand for example Id's tech 4 (Doom 3 and onwards) rendering engine was OpenGL based, and their upcoming tech 5 engine has both OpenGL and DirectX 9 rendering backends.
