Search results

  1. K

    Testing Nvidia vs. AMD Image Quality

    Do you want to know why some GERMAN sites have come up with this issue? This might sound stupid, arrogant or bigheaded or whatever, but the motivation for those guys to write about this mainly comes from our efforts at http://www.3dcenter.org/ in analysing IQ. Apart from some guys at beyond3D...
  2. K

    Radeon HD5xxx filtering issue

    I'm not the soft shadow expert, but if TMUs come into play, it could be related to the same issue. I just know the regular real time soft-shadowing technique, and it only has to use TMUs for reading screen buffers as far as I know. That shouldn't be affected by such problems. On the other hand...
  3. K

    Radeon HD5xxx filtering issue

    There are several reasons: - it depends on the engine, not on the game - those titles DO NOT HAVE ANY BUGS whatever that reduce image quality. So this argument is simply not valid here. AF is not something that changes from game to game, so the only thing you need is the right content and a...
  4. K

    Radeon HD5xxx filtering issue

    The article also states that the banding is not entirely gone, and they mention a member of 3DCenter as source, well guess who that is ;) But indeed, those shots show the problem. Without SGSSAA, there's a lot of aliasing, with SGSSAA, there's still a little banding visible.
  5. K

    Radeon HD5xxx filtering issue

    The point is: Without SGSSAA, you most-likely won't see it anymore, so in case you can live with AMDs filtering quality and don't play with SSAA very often, it probably isn't a reason anymore.
  6. K

    Radeon HD5xxx filtering issue

    Okay, let me get a little more precise on that matter: First, it's not clear whether or not the AFTester always determines the correct amount of samples. Now comes the a little bit more complicated reason: The analysis is (most likely) based on letting the algorithm sample a special texture for...
  7. K

    Radeon HD5xxx filtering issue

    Yes, but the fact that the banding still exists while NV can avoid it for years is embarrassing. It's not about whether it is visible or not, it's more about "you told us that you have fixed it while you haven't completely".
  8. K

    Radeon HD5xxx filtering issue

    Now comes the best part, guys! The banding is theoretically existant on Barts as well!!! You can reproduce it in the D3DFilterTester. The transition between filter levels (kernels) apparently only happens for higher levels. The lowest levels still show the issue, though not as strong as on...
  9. K

    Radeon HD5xxx filtering issue

    That's not true imo. They need to increase the sample rate before the shift to the next kernel (where the banding happens) instead of lowering the sample rate after the abrupt shift. If you compare both texture filters in videos with high res textures (not high frequency patterns!), you'll...
  10. K

    Radeon HD5xxx filtering issue

    That's basically what I've deduced from the Texel-Analysis shots. Different AF-levels of course use different filter kernels (otherwise, the AF-levels wouldn't be different), and there needs to be a transition between AF levels. This is more or less independent of the mipmaps. So I was right...
  11. K

    Radeon HD5xxx filtering issue

    Ah, okay, I see. Anyway, I'm interested to see in how far this is addressed in the upcoming reviews. I think AMD pursues the right strategy (for them). They try to convince us that, what was obligatory in the past, is now exclusive to the ones that buy new graphics cards. A bit like "oh let's...
  12. K

    Radeon HD5xxx filtering issue

    I highly doubt that this fix is back ported, because: - The AF behaviour is not entirely controlled by the driver, especially the adaptive AF algorithm. As AMD has confirmed (if the transparencies are correct), they have simply messed up the AF level transitions in the algorithm and that's what...
  13. K

    Radeon HD5xxx filtering issue

    If not faked, this seems to be the ultimate response from AMD to our issue: http://gathering.tweakers.net/forum/list_message/34877928#34877928
  14. K

    Radeon HD5xxx filtering issue

    The forum entry at beyond3d actually points directly at what I have noticed as well.
  15. K

    Radeon HD5xxx filtering issue

    Gathered some more footage which might bring a little more light into that case. I used the D3DAFTester for the following pictures and vids: http://www.3dcenter.org/download/d3d-af-tester You might wanna visit this site again for explanations: http://en.wikipedia.org/wiki/Anisotropic_filtering...
  16. K

    Radeon HD5xxx filtering issue

    Indeed. With the latest driver, elite force 1/2 and I think many other OpenGL games suffer from lots of stuttering and a lack of good ssaa. I dunno if there are newer drivers than the old HD5krelease driver that also work, but in case you wanne enjoy these old pearls again (EF 2 was a short but...
  17. K

    Radeon HD5xxx filtering issue

    @BlastMaster It pleases me to see that, now, you are as far as I am. Yeah, I did say that ATI has inferior filters, which was wrong, and I apologized. And I DID say that this IS NOT a MAJOR issue. And many guys here said that NV is not perfect as well, which is true imo. Usually, game developers...
  18. K

    Radeon HD5xxx filtering issue

    Sorry, but what publishers are you talking about? (maybe you just pm me if you're really interested, otherwise it's getting off-topic and the thread might be closed early)
  19. K

    Radeon HD5xxx filtering issue

    Games in which I observed the effect: TrackMania, Ut3, MirrorsEdge, Doom3, Prey, MaxPayne2, GTA4, Crysis, EliteForce2, HalfLife2, and I think there are many more, so I count at least 10 games, 8 more or less different engines and 3 APIs. I can show (and have shown) you screenshots if you like...
  20. K

    Radeon HD5xxx filtering issue

    Might sound stupid, the your texture is still not suitable. Create VERY small tiles with lots of contrast, or grates (alpha tested or not, I think it does not matter) @BFG: Well, sgssaa for eliteforce 1,2 and for rtcw does not work with Cat 10.9 here, but it works with the OpenGL HD5Krelease...
  21. K

    Radeon HD5xxx filtering issue

    I dunno the maximum bitrate of youtube. What is the resolution worth without a decent bitrate, and those vids have a pretty high one. You know, I want to avoid statements like "ahh, that's crappy quality, those vids are worth nothing".
  22. K

    Radeon HD5xxx filtering issue

    Btw. the issue also occurs in OpenGL, even old Q3 engine games suffer from it in certain situations. Example: EliteForce 2 http://www.multiupload.com/B22G3XVSRH Compressed with H264 codec, but the problem is clearly visible. Settings: HD5850/Cat10.9,OpenGL@HD5KReleaseDriver - 1280x1024 - 8xMSAA...
  23. K

    Radeon HD5xxx filtering issue

    EDIT: Here's an NV-ATI video comparison with HL2 Scene is based on this savegame: http://www.multiupload.com/WB0KBYGV81 ATI: http://www.multiupload.com/V1A8H9ZACH NV: http://www.multiupload.com/UKWVDT3UZI NV2: http://www.multiupload.com/V6125BMKL0 (the video has a litte compression...
  24. K

    Radeon HD5xxx filtering issue

    Off-topic: In case you're wondering. Someone with a bit knowledge in German language was not happy with my previous nick (too scatological). Although my name didn't have anything to do with s..., but instead referred to the German dictionary "Langenscheidt" as well as to the guard from "Hogan's...
  25. K

    Radeon HD5xxx filtering issue

    You don't see a difference because the the repetition frequency of the texture is not high enough. Use the same tile texture as in the screenshots above. As I said, this problem occurs in EXTREME cases. And still, it might be possible that you will not witness the problem, as bilinear filtering...
  26. K

    Radeon HD5xxx filtering issue

    It bothers me, period. I'm playing with 2xAF, but the blur is visible while driving, which I don't like. But that doesn't matter anyway. ONCE AGAIN: Primarily, this is about making you aware of the existence of the transitions, not just in synthetic tests and benchmarks, but also in games...
  27. K

    Radeon HD5xxx filtering issue

    Here are some mirror-shots as well, if these are more convenient. I guess, I'll have some NV-ATI-comparison shots some day this week.
  28. K

    Radeon HD5xxx filtering issue

    In case you refer to the topic of the thread: As I explained, it affects my enjoyment of TrackMania, for obvious reasons. Now that I know where to look, I observe it in several games, but in most cases, it's not that much of a deal. That's why I wouldn't sell my card right now. But I pretty...
  29. K

    Radeon HD5xxx filtering issue

    TrackMania Nations Forever is for free: http://www.gamershell.com/download_24766.shtml Play the track Nations/White/A04-Acrobatic and look at the texture on the platform. Use the settings from my first post. There you have your comparison. Alternatively, it is quite visible on some grates in...
  30. K

    Radeon HD5xxx filtering issue

    I wouldn't sell my hd5850, but as long as this is not solved, I won't buy another ATI again.
  31. K

    Radeon HD5xxx filtering issue

    The problem nowadays is that everyone judges filter quality by the AF-flower, and ATI knows that!!! Hell, just take a look at the first few posts in here. Please don't take this personally, but we really need some kind of common awareness for this problem, and claiming screenshots inappropriate...
  32. K

    Radeon HD5xxx filtering issue

    This article ,among other sources like the alienbabeltech-research, quotes the research done by my fellows and me at 3Dcenter forums, although using self-made media. It's pretty new actually! I hope you're finally convinced that we're really facing a problem here! The more of you stop ignoring...
  33. K

    Radeon HD5xxx filtering issue

    Okay, but it's impossible for me to give you equal TrackMania shots since I do not have Nvidia hardware, the ones given in the first post are clear enough. You can't deny that you can clearly see transitions on ATI hardware whereas Nvidia is almost completely transition free. You won't benefit...
  34. K

    Radeon HD5xxx filtering issue

    here's the thread with the direct comparison shots (it's German, but pretty much understandable) http://www.forum-3dcenter.org/vbulletin/showpost.php?p=8286953&postcount=1259 What you see is that the problem is slightly visible on HD4K as well, but much stronger on HD5K. Several players...
  35. K

    Radeon HD5xxx filtering issue

    Thank you, man. I was interested in that kind of information. Thanks a lot. I was sure there's something special going on with the HD5K-filters.
  36. K

    Radeon HD5xxx filtering issue

    Thanks for your reply, sir. Do you think the underfiltering happens on purpose? btw. I fixed the video link for the nv-version in the first post. If you tell me a good host that works for you American guys, I can upload the ati video again.
  37. K

    Radeon HD5xxx filtering issue

    But please be aware that the screens do not show average results, but extreme cases. It, of course, depends strongly on the textures. Lots of textures in TrackMania do suffer from this effect only very slighty, almost impossible to notice while driving. But since textures become more and more...
  38. K

    Radeon HD5xxx filtering issue

    I don't see any errors to be honest. Just texture filters struggeling with high frequency textures! Here are the comparison shots, from TrackMania, the game I made the videos from. ati: http://www.abload.de/img/tmu-amdjy2ye.jpg nv: http://www.abload.de/img/tmu-nvidiajk2db.jpg Nvidia, no rings...
  39. K

    Radeon HD5xxx filtering issue

    If you think so, then you don't get the point. Have you actually watched the videos? It's not about angle independency, look at those outer rings instead! Sorry, but that's why ATI hasn't changed a bit for quite a while now. Everyone looks on those stupid AF flowers, but that's not the point...
  40. K

    RadeonHD5xxx texture filtering issue

    Thank you, guys. Made a new thread in video! You may delete this one now!