[osg-users] Graphics context issues

[Sebastian Messerschmidt]

Windows tells me:

Screen 0:
Windows Error #170: [Screen #0] 
GraphicsWindowWin32::makeCurrentImplementation() - Unable to set current 
OpenGL rendering context. Reason: The requested resource is in use.

If I move your code into the callback it displays the correct 
information however. Tested on Windows7:

Vendor: NVIDIA Corporation
Renderer: GeForce GTX TITAN Black/PCIe/SSE2
GL Version: 4.5.0 NVIDIA 372.90


Tested on Windows 10 (Nvidia Optimus) as well. The output in the console 
is fine, but I see invalid rendering too.
Intel drivers aren't known to be a good reference for OpenGL 
implementations, so I'd stick to Robert's advice and go for a 
shader-based approach.

Cheers
Sebastian



Am 10.07.2018 um 10:39 schrieb Ryan Thoryk:
> 
> SMesserschmidt wrote:
>> Hi Ryan,
>> Can you create a minimal _compilable_ example, so more people might
>> check what is wrong?
>>
> 
> 
> Sure - I've attached an osglight-derived example.  Compile with:
> 
> Code:
> 
> g++ -o osglight osglight.cpp -losg -lOpenThreads -lGL -losgUtil -losgViewer -losgDB
> 
> 
> 
> 
> Ryan
> [/code]
> 
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=74301#74301
> 
> 
> 
> 
> Attachments:
> http://forum.openscenegraph.org//files/osglight_161.cpp
> 
> 
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