[Bug 37075] New: objview demo has messed up geometry with r300g

[Bug 37075] New: objview demo has messed up geometry with r300g

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=37075

           Summary: objview demo has messed up geometry with r300g
           Product: Mesa
           Version: git
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r300
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: aaalmosss@gmail.com


See the attached screenshot of the poor bunny. The buddha object is also quite
wrong, bobcat is OK, and the right half of the biplane is wrong.

r300g of 7.10.2 and 7.11-dev both produce the same error. 

swrast of 7.10.2 shows no rendering errors, but llvmpipe of 7.11-dev doesn't
even open a window (it does print ~5fps to the console though).

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[Bug 37075] objview demo has messed up geometry with r300g

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https://bugs.freedesktop.org/show_bug.cgi?id=37075

--- Comment #1 from almos <aaalmosss@gmail.com> 2011-05-10 08:48:40 PDT ---
Created an attachment (id=46555)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=46555)
bunny.png

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[Bug 37075] objview demo has messed up geometry with r300g

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=37075

--- Comment #2 from almos <aaalmosss@gmail.com> 2011-05-27 08:02:01 PDT ---
Created an attachment (id=47231)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=47231)
ut2004.jpg

I now spotted this phenomenon in ut2004 on the ONS-ArcticStronghold level.
Normally this is not visible due to the fog (<Tab>show fog<Enter> turns it
off).

It is interesting that only the remote objects have incorrect geometry, never
the close ones.

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[Bug 37075] objview demo has messed up geometry with r300g

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=37075

--- Comment #3 from Tom Stellard <tstellar@gmail.com> 2011-05-31 02:27:09 PDT ---
Could you run the program with RADEON_DEBUG=fp,vp and post the output.

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[Bug 37075] objview demo has messed up geometry with r300g

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=37075

--- Comment #4 from almos <aaalmosss@gmail.com> 2011-05-31 05:04:53 PDT ---
Created an attachment (id=47359)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=47359)
objview debug output.txt

The output of
RADEON_DEBUG=fp,vp ./objview
with mesa 7.11-dev.

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[Bug 37075] objview demo has messed up geometry with r300g

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https://bugs.freedesktop.org/show_bug.cgi?id=37075

--- Comment #5 from Marek Olšák <maraeo@gmail.com> 2011-06-07 16:25:27 PDT ---
I can't reproduce this on r580. The bunny looks alright here.

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[Bug 37075] objview demo has messed up geometry with r300g

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https://bugs.freedesktop.org/show_bug.cgi?id=37075

--- Comment #6 from almos <aaalmosss@gmail.com> 2011-06-08 13:45:53 PDT ---
Maybe it's a hw limitation on r3xx? Perhaps large vertex buffers should be
broken down into smaller ones.

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[Bug 37075] objview demo has messed up geometry with r300g

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https://bugs.freedesktop.org/show_bug.cgi?id=37075

Marek Olšák <maraeo@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #7 from Marek Olšák <maraeo@gmail.com> 2011-06-08 16:31:35 PDT ---
Good point. We do split rendering commands with too many vertices into smaller
ones, but the splitting was broken.

Fixed by 578d4539ba72a9f52e0cb3f615bb04bf9407b574. Closing.

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[Bug 37075] objview demo has messed up geometry with r300g

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=37075

almos <aaalmosss@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |VERIFIED

--- Comment #8 from almos <aaalmosss@gmail.com> 2011-06-09 01:53:24 PDT ---
Fix confirmed. Thanks.

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