[Bug 31037] New: Checkerboard effect on sprites / textures

[Bug 31037] New: Checkerboard effect on sprites / textures

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https://bugs.freedesktop.org/show_bug.cgi?id=31037

           Summary: Checkerboard effect on sprites / textures
           Product: Mesa
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r300
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: gerwin_kramer@hotmail.com


Created an attachment (id=39619)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=39619)
chckerboard effect in nexuiz

In nexuiz and in this webgl demo: 

https://cvs.khronos.org/svn/repos/registry/trunk/public/webgl/sdk/demos/google/particles/index.html
, 

there is a checkerboard effect (not black and white, but black and alpha) which
should not be there (see attached screenshot)

In the webgl demo, the checkerboard effect is in the black smoke (screencast
attached).

I am using the r300g driver from xorg-edgers ppa with my R350 radeon card.

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[Bug 31037] Checkerboard effect on sprites / textures

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https://bugs.freedesktop.org/show_bug.cgi?id=31037

--- Comment #1 from Gerwin <gerwin_kramer@hotmail.com> 2010-10-21 14:59:23 PDT ---
Created an attachment (id=39620)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=39620)
bug in webgl (chromium and firefox)

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[Bug 31037] [r300g] Checkerboard effect on sprites / textures

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https://bugs.freedesktop.org/show_bug.cgi?id=31037

Gerwin <gerwin_kramer@hotmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Checkerboard effect on      |[r300g] Checkerboard effect
                   |sprites / textures          |on sprites / textures

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[Bug 31037] [r300g] Unwanted checkerboard effect on sprites / textures

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https://bugs.freedesktop.org/show_bug.cgi?id=31037

Gerwin <gerwin_kramer@hotmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[r300g] Checkerboard effect |[r300g] Unwanted
                   |on sprites / textures       |checkerboard effect on
                   |                            |sprites / textures

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[Bug 31037] [r300g] Unwanted checkerboard effect on sprites / textures

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https://bugs.freedesktop.org/show_bug.cgi?id=31037

--- Comment #2 from Gerwin <gerwin_kramer@hotmail.com> 2010-10-29 10:51:00 PDT ---
In nexuiz, the distortion and squares only appear when the "real dynamic
lighting" setting is turned on (under settings / effects).

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[Bug 31037] [r300g] Unwanted checkerboard effect on sprites / textures

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https://bugs.freedesktop.org/show_bug.cgi?id=31037

--- Comment #3 from Tom Stellard <tstellar@gmail.com> 2010-10-29 17:23:57 PDT ---
(In reply to comment #2)
> In nexuiz, the distortion and squares only appear when the "real dynamic
> lighting" setting is turned on (under settings / effects).

Can you run nexuiz with RADEON_DEBUG=fp,vp,pstat with and without "real dynamic
lighting" and post the output?

Also, does running with RADEON_NO_TCL=1 help?

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[Bug 31037] [r300g] Unwanted checkerboard effect on sprites / textures

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https://bugs.freedesktop.org/show_bug.cgi?id=31037

--- Comment #4 from Gerwin <gerwin_kramer@hotmail.com> 2010-10-30 06:15:07 PDT ---
Created an attachment (id=39902)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=39902)
with realtime dynamic lighting

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[Bug 31037] [r300g] Unwanted checkerboard effect on sprites / textures

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https://bugs.freedesktop.org/show_bug.cgi?id=31037

--- Comment #5 from Gerwin <gerwin_kramer@hotmail.com> 2010-10-30 06:16:04 PDT ---
Created an attachment (id=39903)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=39903)
without realtime dynamic lighting

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[Bug 31037] [r300g] Unwanted checkerboard effect on sprites / textures

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https://bugs.freedesktop.org/show_bug.cgi?id=31037

--- Comment #6 from Gerwin <gerwin_kramer@hotmail.com> 2010-10-30 06:25:47 PDT ---
I posted the logs, with and without 

The problem is especially visible when I shoot with gun number 1

I clicked on single player, level 2 and selected gun 1 and shot a few times.
With "realtime dynamic lighting" the checkerboard effect occurs. (the 'with'
log)
With "flash blend approximation" there is no problem. (the 'without' log)

The RADEON_NO_TCL=1 setting caused a problem, I saw distorted pixels on the
whole screen and heard the music, so i was unable to do anything.

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[Bug 31037] [r300g] Unwanted checkerboard effect on sprites / textures

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https://bugs.freedesktop.org/show_bug.cgi?id=31037

Gerwin <gerwin_kramer@hotmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #39903|0                           |1
        is obsolete|                            |

--- Comment #7 from Gerwin <gerwin_kramer@hotmail.com> 2010-10-30 06:33:57 PDT ---
Created an attachment (id=39904)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=39904)
without realtime dynamic lighting, with flash blend approximation

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[Bug 31037] [r300g] Unwanted checkerboard effect on sprites / textures

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https://bugs.freedesktop.org/show_bug.cgi?id=31037

--- Comment #8 from Gerwin <gerwin_kramer@hotmail.com> 2010-11-04 09:59:37 PDT ---
Created an attachment (id=40048)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=40048)
log of the issue in webgl

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[Bug 31037] [r300g] Unwanted checkerboard effect on sprites / textures

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https://bugs.freedesktop.org/show_bug.cgi?id=31037

--- Comment #9 from Gerwin <gerwin_kramer@hotmail.com> 2010-11-04 10:00:12 PDT ---
I also added the log of the issue in webgl (see the ogg file)

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[Bug 31037] [r300g] Unwanted checkerboard effect on sprites / textures

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https://bugs.freedesktop.org/show_bug.cgi?id=31037

Gerwin <gerwin_kramer@hotmail.com> changed:

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

--- Comment #10 from Gerwin <gerwin_kramer@hotmail.com> 2010-12-20 11:51:36 PST ---
Today I updated from xorg edgers ppa and the bug in Nexuiz is fixed! Maybe this
patch fixed it?
http://cgit.freedesktop.org/mesa/mesa/commit/?id=daffaca53e47faeaaefb98ca46fe4870133d9f02

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[Bug 31037] [r300g] Unwanted checkerboard effect on sprites / textures

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https://bugs.freedesktop.org/show_bug.cgi?id=31037

--- Comment #11 from Marek Olšák <maraeo@gmail.com> 2010-12-20 12:01:19 PST ---
Most probably, yes.

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