Update: It’s come to my attention that the DirectX 10 renderer may not be compatible with the ENBSeries (see below), so you may want to stick to D3D9 if you want bloom and bump maps. We recommend you download and install the DirectX 9 or DirectX 10 renderer. An upgraded OpenGL renderer comes with The Nameless Mod, but it’s not sufficient to enable compatibility with the ENBSeries and may not work with New Vision either. The most advanced renderer available for the game uses DirectX 10, but if your video card doesn’t support it, a DirectX 9 renderer is also available.
The basic upgrade is to install one of the new renderers for Deus Ex.