[sldev] [VWR] Shadows on Linux

[Khyota]

> rev 99647 from maint-render-8 branch built without errors,
> and shadows are working:
> http://www.flickr.com/photos/opensourceobscure/2952254820
>
> :) thanks for this feature!
>
> at the moment the viewer crashes very often here, sometimes even
> before I can see the world. this was a main problem at first
> because I couldn't enable the RenderDeferred and RenderUseFBO
> options in Advanced menu > Debug Settings
>
> (you need to enable those options to actually enable shadows)
>
> when the viewer crashes, the error message is
> "ERROR: checkTextureChannels: GL texture state corruption detected"
>
> as a workaround in order to enable RenderUseFBO and RenderDeferred
> options without having to get in-world, i think one could add these
> lines in a settings file
> (maybe ~/.secondlife/user_settings/settings_developer.xml ?)
>
>
> <key>RenderUseFBO</key>
> <map>
> <key>Comment</key>
> <string>Whether we want to use GL_EXT_framebuffer_objects.</string>
> <key>Type</key>
> <string>Boolean</string>
> <key>Value</key>
> <boolean>1</boolean>
> </map>
>
> <key>RenderDeferred</key>
> <map>
> <key>Comment</key>
> <string>Use deferred rendering pipeline.</string>
> <key>Type</key>
> <string>Boolean</string>
> <key>Value</key>
> <boolean>1</boolean>
> </map>
>
>
> Opensource Obscure
> --
> http://friendfeed.com/oobscure
>
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I just finished a build too, but i get a fatal error at startup
ERROR: setImage: ASSERT (gGL.getTexUnit(0)->bind(this))

Console says 

2008-10-18T17:39:33Z INFO: loadGPUClass: GPU is NVIDIA GeForce 8400
2008-10-18T17:39:33Z INFO: applyBaseMasks: Setting GPU Class to Class1
2008-10-18T17:39:33Z INFO: LLViewerImageList::updateMaxResidentTexMem: Total 
Video Memory set to: 240 MB
2008-10-18T17:39:33Z INFO: LLViewerImageList::updateMaxResidentTexMem: 
Available Texture Memory set to: 180 MB
2008-10-18T17:39:34Z llrender/llimagegl.cpp(456) : error
2008-10-18T17:39:34Z ERROR: setImage: ASSERT (gGL.getTexUnit(0)->bind(this))