[vtk-developers] OpenGL Extension loading with OSMesa?

[burlen]

Hi Utkarsh,

It's almost working, there's a test in the extension manager that always 
fails when using software rendering, for OS Mesa tests for any and all 
extensions fail weather they're actually support or not. The comment on 
this test says it has to do with nvidia driver over ssh -X and mentions 
a ParaView bug but doesn't say which one. Are you familiar with that 
issue? Although nvidia is mentioned the comment, the test doesn't 
differentiate between nvidia and other vendors.  I pushed a patch on 
Gerrit that lets OS Mesa report it's true 
capabilities(http://review.source.kitware.com/#/c/10927/). Could you 
take a look?

Burlen

On 04/16/2013 01:04 PM, Utkarsh Ayachit wrote:
> Cool...so looks like it's working.
>
> Utkash
>
> On Tue, Apr 16, 2013 at 2:59 PM, Kevin H. Hobbs <hobbsk at ohio.edu> wrote:
>> On 04/16/2013 02:33 PM, Utkarsh Ayachit wrote:
>>> Kevin,
>>>
>>> I believe that's so because the other dashboards (amber8, mango) are
>>> not using OSMesa, but onscreen Mesa.
>>>
>> However, this experimental build :
>>
>> http://open.cdash.org/buildSummary.php?buildid=2877576
>>
>> does use OSMesa, and so exercises some more of your patch.
>>
>> What I see in the LoadOpenGLExtension test when compared to this build :
>>
>> http://open.cdash.org/buildSummary.php?buildid=2877084
>>
>> is that I get :
>>
>> GetExtensionsString...
>> GL_ARB_multisample GL_EXT_abgr GL_EXT_bgra GL_EXT_blend_color ...
>> Set up pipeline.
>>
>> with the patch (I trimmed pages of extensions) yippee!, and :
>>
>> GetExtensionsString...
>>
>> Set up pipeline.
>>
>> without it.
>>
>>
>>
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