Half-Life 2 as a benchmark
Image quality
We used the "canal-3dnews" demo with ATI Radeon X800 XL:
| ATI Radeon X800 XL: NoAA, NoAF |
ATI Radeon X800 XL: NoAA, 8xAF |
*640x480; *1280x1024 |
*1600x1200; *1024x768
|
Fragment 1:1, w/o transformation |
Fragment 1:1, w/o transformation |
The picture is definitely awful - it's no good playing modern games without anti-aliasing. We add AA and set the AF to the full:
| ATI Radeon X800 XL: 4xAA, 8xAF |
ATI Radeon X800 XL: 6xAA, 16xAF |
*1600x1200; *1024x768 |
*1600x1200; *1024x768 |
Fragment 1:1, w/o transformation |
Fragment 1:1, w/o transformation |
that's better! In the latter case (6xAA, 16xAF), the picture is fully cinematographic and almost photo-realistical. No image artifacts were found. People with poor vestibular apparatus experience problems with such a level of quality - their head goes dizzy :-)
Here goes the "trainst-3dnews" demo used with ATI Radeon X800 XL:
| ATI Radeon X800 XL: NoAA, NoAF |
ATI Radeon X800 XL: NoAA, 8xAF
|
 *1024x768 |
 *1024x768 |
Fragment 2:1 |
Fragment 2:1 |
| ATI Radeon X800 XL: 4xAA, 8xAF |
ATI Radeon X800 XL: 6xAA, 16xAF |
*1024x768 |
*1024x768 |
Fragment 2:1 |
Fragment 2:1 |
But with NVIDIA cards things are somehow more difficult. With GeForce 6800/6600 video cards, sporadical artifacts were found. What's more, we were unable to calculate the regularity of there emergence. I mean just the runs of recorded timedemos - nothing like that was found in the game mode.
With PCX5900/5750 video cards, there was another trouble. On changing resolutions, water shaders refused to execute:
There is the only remedy for that - restart the game each time you change the resolution.
And quite awful is the picture with i915G integrated graphics. Formally, this chipset offers support for DirectX9.0, but only formally. Normally, if the core is unable to execute the shader, it simply ignores that. The picture is weird, but anyway you can play with it in whatever games, and only NOT in Half-Life 2: you can start the game with i915G only if absolutely all is reset to zero. We we unable to go further that the menu.
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