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Bers
Journeyman III

Strange bug with GL_ARB_occlusion_query

Hello,

my video: HD5830 (catalyst 10.*, 11.*)

GL_ARB_occlusion_query does not work properly: I draws object in invisible area, query returned 84 visibled fragments

Example: http://www.codesampler.com/source/ogl_occlusion_query_arb.zip

Sphere is behind plane,  program prints "sphere fragments = 84", must be 0. GeForce returned 0.

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12 Replies
frali
Staff
Staff

Strange bug with GL_ARB_occlusion_query

We tried to run your demo on HD5850 and Cat11.1/11.2/11.3/11/5. The results are

Plan Fragments = 24964
Sphere Fragments = 0

Is there anything I should take care? Or maybe it's a HD5830 only bug? 

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Bers
Journeyman III

Strange bug with GL_ARB_occlusion_query

Thanx for reply.

My OS: WinXP64, I'll be try in XP32.

Tested also with HD4670 and HD5670 (cat 11.2) - has not bug.

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techforums123
Journeyman III

Strange bug with GL_ARB_occlusion_query

Even I tested , It runs bug without any defect.

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Bers
Journeyman III

Strange bug with GL_ARB_occlusion_query

I formatted my second HDD and install WinXP64 + DX9 (Jun2010) + Cat.11.5a, bug still present

My hardware (info by Everest):

QuadCore Intel Core 2 Quad Q9450

MSI P45 Neo3 v1.0 (MS-7514)

4096 GB DDR2

ATI Radeon HD 5800 Series [1002-689E] [NoDB]

Tomorrow, I'll install Win7 x64, then test for bug...

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Bers
Journeyman III

Strange bug with GL_ARB_occlusion_query

New installed Win7 x64 Ultimate + Cat 11.5:   bug.  

Who can check with own HD5830?

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frali
Staff
Staff

Strange bug with GL_ARB_occlusion_query

It's verified a HD5830 bug. (It takes some time to buy such a card...). We will take a look at the bug. As a workaround, you could select other cards for replacement. Thanks.

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Bers
Journeyman III

Strange bug with GL_ARB_occlusion_query

Frali, thank you,

I can't select other card, and I am the developer of Berserker@Quake2 and Berserker@Quake3, so I will wait a new Catalyst with working ARB_occlusion_query 😉

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ssheng
Staff
Staff

Strange bug with GL_ARB_occlusion_query

It have been fixed, and will be ok in next version(maybe 8.88).

 

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Bers
Journeyman III

Strange bug with GL_ARB_occlusion_query

Thanx!

But, what is 8.88 version? Catalyst??

Oh, driver package version?!

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