It sounds incredible, but it really works (NVidia card needed, newer models only 9xxx and later, probably 8xxx as well – couldn’t test it on ATI, you’ll have to try yourself): This little .dll adds HDRÂ to FSX in DX9 – without noticeable impact on framerates (at least on newer cards). It’s the same effect you see in Half Life, for example, and it mimics the eye’s adaption to bright light and darkness. All you have to do is to open the archive, copy the DLL and the ini-file into your FSX directory and start up FSX to see the effect. What happens is that colors become more vivid, the image is less flat and it now makes a difference if you look into the direction of the sun or away from it. Even during the night, it adds more realism. The effect works windowed or in full screen. Be careful, you might become addicted to it. 🙂
If you have the “affinity mask” setting in your fsx.cfg, you should take it out in order to keep high frame rates. To see the dll in action, have a look at this clip on youtube. Try it out yourself and post your impressions here.