[Tested] AMD Catalyst 11.1a: OpenGL Tessellation Support is Slightly… Broken



AMD Catalyst 11.1a hotfix + Unigine Heaven OpenGL tessellation
AMD Catalyst 11.1a hotfix + Unigine Heaven OpenGL tessellation + SAPPHIRE HD 6970



I recently received some feedbacks about TessMark and Radeon cards. According to these feedbacks, the OpenGL tessellation no longer works.

Here is the rendering in TessMark with a SAPPHIRE HD 6970 and Catalyst 11.1a:

AMD Catalyst 11.1a hotfix + TessMark



I thought it was a bug in TessMark related to some changes in the new Catalyst 11.1. But actually after some tests, it seems that OpenGL tessellation is simply broken in the new Cat 11.1a.

Here are some cool screenshots of Unigine Heaven with the OpenGL render path (tested on a HD 6970 and on a HD 6950):

AMD Catalyst 11.1a hotfix + Unigine Heaven OpenGL tessellation

AMD Catalyst 11.1a hotfix + Unigine Heaven OpenGL tessellation

AMD Catalyst 11.1a hotfix + Unigine Heaven OpenGL tessellation



Okay now I understand the performance boost in Unigine Heaven claimed by press release (see HERE) 😀

Anyway I will dive in TessMark code, maybe I will find a workaround or a bugfix for this tessellation problem.

UPDATE: I found nothing special in TessMark code. Since real Catalyst 11.1 will be available in few days, I hope this tessellation problem will be fixed in the WHQL driver. Keep in mind that this Cat 11.1a is a BETA driver… I can’t wait to see the real OpenGL tessellation performance of HD 6900 Series.



13 thoughts on “[Tested] AMD Catalyst 11.1a: OpenGL Tessellation Support is Slightly… Broken”

  1. sim

    Useless news ad idiot comment by coolmonkey.

    Catalyst 11.1a are not catalyst 11.1.

    Cat 11.1a are not yet released, cat 11.1 TOO!

    So… beta/leaked driver… what do you want???

    -_-‘

  2. Maggot

    Typically for AMD. They know how to make their video card, but always write a driver can not — bad programmers

  3. Pingback: [Test] Hybrid Systems: Radeon HD 6950 for 3D and GeForce GT 240 for OpenCL - 3D Tech News, Pixel Hacking, Data Visualization and 3D Programming - Geeks3D.com

  4. sebydick

    i have the same problem with unigine heaven and opengl with my 6850 after i installed 11.1a 😀

  5. Athlonite

    yup it’s not just broken for 68/69xx but 5xxx cards aswell JeGX

  6. Athlonite

    also when trying to run HW geometry test in GPCv 1.95 it crashes with this msg

    Problem signature:
    Problem Event Name: BEX
    Application Name: GpuCapsViewer.exe
    Application Version: 1.9.5.0
    Application Timestamp: 4d131433
    Fault Module Name: StackHash_1e05
    Fault Module Version: 0.0.0.0
    Fault Module Timestamp: 00000000
    Exception Offset: 0000009d
    Exception Code: c0000005
    Exception Data: 00000008
    OS Version: 6.1.7600.2.0.0.256.1
    Locale ID: 5129
    Additional Information 1: 1e05
    Additional Information 2: 1e055dc3b82332878ece24e1c2bf7559
    Additional Information 3: f6c0
    Additional Information 4: f6c0a41346d793dae0edcb01b1d11038

  7. Serj

    Why on this site constantly search for a way to blacken AMD?
    Cat 11.1a are not yet released!!!!!!!!!!!
    Never noticed the same eagerness in the relation nVidia!

    P.S: Sorry for bad English.

  8. Pingback: Catalyst 11.1a Hotfix Updated: OpenGL Tessellation Bug Fixed and Gains in TessMark - 3D Tech News, Pixel Hacking, Data Visualization and 3D Programming - Geeks3D.com

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