Re: [osg-users] OSG 3.2.1 + OculusViewer on Mac OSX 10.9 - Crash

2014-09-11 Thread Björn Blissing
Hi,

Working together (me and Felipe) have been able to track down the error which 
caused this behaviour on the Mac's using Intel graphics.

The problem was that I forgot to force VertexBufferObjects for the geometry 
performing the optical distortion correction. So the geometry used DisplayLists 
instead. This apparently worked well on NVidia and Amd cards, but failed with 
Intel Iris graphics.

So I added the following to my geometry to get it working:


Code:
osg::ref_ptrosg::Geometry geometry = new osg::Geometry; 
geometry-setUseDisplayList( false ); 
geometry-setUseVertexBufferObjects(true); 




And Felipe has confirmed that this is working on his Mac with Intel Iris 
graphics.

Regards
Björn

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Re: [osg-users] [build] Building OSG with OpenGL ES 2

2014-09-11 Thread Alistair Baxter
Are you using the PowerVR Insider SDK framework on your embedded Linux platform?

If so, then you can probably use the same code on both platforms to integrate a 
GraphicsWindowEmbedded with direct calls to update osg via the frame() function 
in the drawing callback their framework provides.  You might need to do a bit 
of manual render state resetting before and after to ensure that both systems 
work together properly.

If osg's existing Linux support, or some template you got from elsewhere is 
what you're using on Linux, then you might as well just use Desktop OpenGL on 
Windows, and either just try to avoid the Fixed-function pipeline and other 
stuff unavailable in OpenGL ES, or specifically  to strip them out using osg's 
CMAKE build options. 
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Re: [osg-users] Who is maintaining openscenegraph?

2014-09-11 Thread Thomas King
Sorry to reply so late.. Optirun is for using nvidia's card on laptop,
actually I don't know much about it. I've reported this bug to archlinux's
community. Maybe someone there will get a good knowledge of both osg and
optirun and x11... This issue is not critical, so, as I've got how to
report issue to osg community, that's enough yet.

On Wed, Sep 10, 2014 at 5:24 PM, Jan Ciger jan.ci...@gmail.com wrote:

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 On 09/10/2014 10:05 AM, Robert Osfield wrote:

  I haven;t heard of optirun before, I have done a quick search on
  the web and haven't got any good explanation of what it is.  What
  is it and why are you using it?

 It seems to be a part of this: http://bumblebee-project.org/index.html

 It is to support the GPU switching solution from Nvidia. So yes, I
 would suspect poor driver support on the target machine and nothing to
 do with OSG. The xcb messages are from the X libraries, it looks like
 OpenGL is not properly supported.

 J.
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Re: [osg-users] Who is maintaining openscenegraph?

2014-09-11 Thread Robert Osfield
On 11 September 2014 14:54, Thomas King thomasking0...@gmail.com wrote:

 Sorry to reply so late.. Optirun is for using nvidia's card on laptop,
 actually I don't know much about it. I've reported this bug to archlinux's
 community. Maybe someone there will get a good knowledge of both osg and
 optirun and x11... This issue is not critical, so, as I've got how to
 report issue to osg community, that's enough yet.


If may well be one of the few people in the OSG community with that
particular combination of hardware and software so it's not an issue that
many if any others can look into.  Also as it's very likely not an OSG
problem but a GLX/driver issue it's not something that the OSG community
can address as it's really not something wrong with the OSG or something
that we are likely to be able to workaround.

I would recommend contacting the Optirun community or NVidia/Intel about
the problem.

Robert.
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Re: [osg-users] Who is maintaining openscenegraph?

2014-09-11 Thread Jan Ciger
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On 09/11/2014 04:05 PM, Robert Osfield wrote:
 On 11 September 2014 14:54, Thomas King thomasking0...@gmail.com I
 would recommend contacting the Optirun community or NVidia/Intel
 about the problem.

AFAIK, the Optimus technology from Nvidia is not officially supported
in Linux, so good luck trying to get any support from them :( Intel
likely the same story.

I would contact the Bumblebee project
(http://bumblebee-project.org/index.html) who are authors of the
optirun tool and the utilities needed to make the setup work. I
wouldn't have high hopes for it, though - the Optimus setup is quite
complex (the Nvidia GPU renders offscreen and then the image is
copied to the Intel one which has the actual display connection,
requiring various OpenGL hacks).

Regards,

J.
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Re: [osg-users] Who is maintaining openscenegraph?

2014-09-11 Thread Conan Doyle
If you are on ubuntu...Check these out.

http://xmodulo.com/2014/08/install-configure-nvidia-optimus-driver-ubuntu.html
http://www.webupd8.org/2014/01/prime-indicator-lets-you-quickly-switch.html

I am using prime on an Alienware M11XR2 with ubuntu...works pretty good.

CD



Thomas King wrote:
 I want to report a bug to its developers, but there seems to be only some 
 individual developers on github. Where should I report? 
 
 
 
 By the way, this is the details of this bug:
 
 
 OS: Arch Linux
 
 Ver: openscenegraph 3.2.1-1, x86_64
 Detail: When I create more than one viewer and run it with nvidia optirun, 
 I'll get this error. Running on default intel driver is ok.
 
 
 Error log:
 [xcb] Unknown request in queue while dequeuing
 [xcb] Most likely this is a multi-threaded client and XInitThreads has not 
 been called
 [xcb] Aborting, sorry about that.
 XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server :8
       after 72 requests (72 known processed) with 0 events remaining.
 Optic_disp: xcb_io.c:179: dequeue_pending_request: Assertion 
 `!xcb_xlib_unknown_req_in_deq' failed.
 
 
 
 
 
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 Working on computer vision and computational geometry
 Github: https://github.com/thomasking0529 (https://github.com/thomasking0529)
 
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[osg-users] Qt resouce and osgDB::readImageFile

2014-09-11 Thread Heiko Thiel
Hi,

I currently bind files wich our application need as resource. But is there a 
way, that osg automatically use the resource system (accept filepathes starting 
with qrc:/). Or how I can load a file from a qrc with something like 
readImageFile, where a filepathes is accepted, but I don't see an alternate 
with a stream?

Thank you!

Cheers,
Heiko

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