[Bug 30502] New: atmospheres of planets get transparent when going away from planets in celestia

[Bug 30502] New: atmospheres of planets get transparent when going away from planets in celestia

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30502

           Summary: atmospheres of planets get transparent when going away
                    from planets in celestia
           Product: Mesa
           Version: unspecified
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/R600
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: acelists@atlas.sk


Created an attachment (id=39071)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=39071)
Far view of Titan - atmosphere transparent

The atmosphere of some planets (not all) gets transparent when approaching the
planets. As intended, the atmosphere of Titan should be opaque at all distances
(except when standing on the surface). However, currently it gets more
transparent as the observer is moving AWAY from the planet. From the distance,
atmosphere is invisible, near the planet it is opaque.

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[Bug 30502] atmospheres of planets get transparent when going away from planets in celestia

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https://bugs.freedesktop.org/show_bug.cgi?id=30502

--- Comment #1 from aceman <acelists@atlas.sk> 2010-09-30 08:50:44 PDT ---
Created an attachment (id=39072)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=39072)
Near view of Titan - atmosphere almost opaque

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[Bug 30502] atmospheres of planets get transparent when going away from planets in celestia

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https://bugs.freedesktop.org/show_bug.cgi?id=30502

--- Comment #2 from aceman <acelists@atlas.sk> 2010-09-30 08:51:54 PDT ---
This did not happen in Mesa 7.8.2.
It happens with Mesa 7.9-rc2, kernel 2.6.35.5, radeon driver 6.13.2, X.org
1.7.7.
OpenGL renderer string: Mesa DRI R600 (RV710 954F) 20090101
x86/MMX+/3DNow!+/SSE2 TCL DRI2
OpenGL version string: 2.1 Mesa 7.9-rc2
OpenGL shading language version string: 1.20

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[Bug 30502] atmospheres of planets get transparent when going away from planets in celestia

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30502

--- Comment #3 from Alex Deucher <agd5f@yahoo.com> 2010-09-30 08:55:47 PDT ---
(In reply to comment #2)
> This did not happen in Mesa 7.8.2.

Any chance you could bisect it?

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[Bug 30502] atmospheres of planets get transparent when going away from planets in celestia

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https://bugs.freedesktop.org/show_bug.cgi?id=30502

--- Comment #4 from aceman <acelists@atlas.sk> 2010-09-30 11:18:38 PDT ---
It also does not happen on 7.9 with software rendering.
I could try to bisect by date, but I don't know where to download the nightly
snapshots.

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[Bug 30502] atmospheres of planets get transparent when going away from planets in celestia

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https://bugs.freedesktop.org/show_bug.cgi?id=30502

--- Comment #5 from Alex Deucher <agd5f@yahoo.com> 2010-09-30 12:03:46 PDT ---
It would be much easier to checkout the mesa tree with git and use git bisect.

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[Bug 30502] atmospheres of planets get transparent when going away from planets in celestia

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https://bugs.freedesktop.org/show_bug.cgi?id=30502

--- Comment #6 from aceman <acelists@atlas.sk> 2010-09-30 12:59:17 PDT ---
>From here: git://anongit.freedesktop.org/mesa/mesa ?

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[Bug 30502] atmospheres of planets get transparent when going away from planets in celestia

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https://bugs.freedesktop.org/show_bug.cgi?id=30502

--- Comment #7 from Alex Deucher <agd5f@yahoo.com> 2010-09-30 13:11:46 PDT ---
yes.  see the mesa3d section of this guide for more info:
http://wiki.x.org/wiki/radeonBuildHowTo

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[Bug 30502] atmospheres of planets get transparent when going away from planets in celestia

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https://bugs.freedesktop.org/show_bug.cgi?id=30502

--- Comment #8 from aceman <acelists@atlas.sk> 2010-10-03 11:03:38 PDT ---
I have tried it, and managed several iterations. But now I have hit a range
where celestia crashes on start with this error:
celestia: radeon_texture.c:703: radeon_store_teximage: Predpoklad
`dstRowStride' nesplnený. (Prerequisite `dstRowStride' not met)

I have tried to get out of this range using "git bisect skip" on hundreds of
commits, but I was not successful.

If you can help me get out of this hole I could continue bisecting.

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[Bug 30502] atmospheres of planets get transparent when going away from planets in celestia

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30502

--- Comment #9 from aceman <acelists@atlas.sk> 2010-10-03 11:04:36 PDT ---
Created an attachment (id=39138)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=39138)
Directory of git bisect data which I created in the process

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[Bug 30502] atmospheres of planets get transparent when going away from planets in celestia

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https://bugs.freedesktop.org/show_bug.cgi?id=30502

--- Comment #10 from Rafał Miłecki <zajec5@gmail.com> 2010-10-04 10:04:20 PDT ---
(In reply to comment #8)
> I have tried it, and managed several iterations. But now I have hit a range
> where celestia crashes on start with this error:
> celestia: radeon_texture.c:703: radeon_store_teximage: Predpoklad
> `dstRowStride' nesplnený. (Prerequisite `dstRowStride' not met)
> 
> I have tried to get out of this range using "git bisect skip" on hundreds of
> commits, but I was not successful.
> 
> If you can help me get out of this hole I could continue bisecting.

Driver broken for hundreds of commits? Sounds weird... Could you try "make
distclean" and "make realclean" and then compile previously-broken-commit?

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[Bug 30502] atmospheres of planets get transparent when going away from planets in celestia

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https://bugs.freedesktop.org/show_bug.cgi?id=30502

--- Comment #11 from aceman <acelists@atlas.sk> 2010-10-09 04:07:08 PDT ---
Didn't help. No change.

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[Bug 30502] atmospheres of planets get transparent when going away from planets in celestia

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https://bugs.freedesktop.org/show_bug.cgi?id=30502

--- Comment #12 from aceman <acelists@atlas.sk> 2011-01-12 12:30:22 PST ---
After trying bisecting mesa 7.9 and finally returning to the official snapshot,
the problem vanished at the planet. It is still visible at some nebulas, but I
am not sure it is the same problem. Both seem like a problem with some depth
(distance from screen) determination.

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[Bug 30502] atmospheres of planets get transparent when going away from planets in celestia

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https://bugs.freedesktop.org/show_bug.cgi?id=30502

aceman <acelists@atlas.sk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|unspecified                 |7.9

--- Comment #13 from aceman <acelists@atlas.sk> 2011-01-12 12:36:22 PST ---
The broken driver problem seems to be Bug 28284 according to the error message.
I probably returned the tree into that time range.

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[Bug 30502] [RADEON:R600C] atmospheres of planets get transparent when going away from planets in celestia

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https://bugs.freedesktop.org/show_bug.cgi?id=30502

Jerome Glisse <glisse@freedesktop.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|atmospheres of planets get  |[RADEON:R600C] atmospheres
                   |transparent when going away |of planets get transparent
                   |from planets in celestia    |when going away from
                   |                            |planets in celestia

--- Comment #14 from Jerome Glisse <glisse@freedesktop.org> 2011-03-08 09:52:45 PST ---
Please try r600g, classic driver is no longer actively supported

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[Bug 30502] [RADEON:R600C] atmospheres of planets get transparent when going away from planets in celestia

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aceman <acelists@atlas.sk> changed:

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

--- Comment #15 from aceman <acelists@atlas.sk> 2012-01-31 10:15:27 PST ---
I have not seen it since the report so let's close it for now.
And I am on R600g as it gets usable and the default.

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