[RQt-devel] QGLFramebufferObject: Framebuffer incomplete attachment.

Michael Lawrence lawrence.michael at gene.com
Sat Aug 7 23:33:45 CEST 2010


My guess is that Yi Hui has the Intel integrated graphics in the t510
instead of the GeForce option. His hardware/driver is likely incapable of
multi-sampled (antialiased) rendering to framebuffer objects, which are used
for caching. So besides turning off OpenGL, you could turn off caching.

The obvious real solution would be to disable multisampling if unsupported
by the hardware. I haven't figured out a way to detect this from Qt (made
difficult by not having this problem on my computer). I could write a bunch
of OpenGL code, but that is a pain.

I might just add a logical "multisampling" argument to qlayer() for the user
to specify the correct behavior.

Michael

On Fri, Aug 6, 2010 at 10:57 PM, Tengfei Yin <yintengfei at gmail.com> wrote:

> ...Yes, maybe you are right, your t510 has a i5 cpu...it's new and awesome!
> you may check with opengl community, since we have the same package and
> library, the only difference is hardware of your laptop is better than my
> t61...
>
> Have a nice weekend!!
>
> Best
>
> Tengfei
>
> On Fri, Aug 6, 2010 at 9:07 PM, Yihui Xie <xie at yihui.name> wrote:
>
>> I do have these packages:
>>
>> yihui at xie:~$ dpkg -l | grep libgl
>> ii  libgl1-mesa-dev
>> 7.9.0+git20100806.27041d7c-0ubuntu0sarvatt~lucid
>> A free implementation of the OpenGL API -- G
>> ii  libgl1-mesa-dri
>> 7.9.0+git20100806.27041d7c-0ubuntu0sarvatt~lucid
>> A free implementation of the OpenGL API -- D
>> ii  libgl1-mesa-glx
>> 7.9.0+git20100806.27041d7c-0ubuntu0sarvatt~lucid
>> A free implementation of the OpenGL API -- G
>> ii  libglade2-0                          1:2.6.4-1build1
>>                                        library to load .glade files
>> at runtime
>> ii  libglade2.0-cil                      2.12.9-4
>>                                        CLI binding for the Glade
>> libraries 2.6
>> ii  libglc0                              0.7.2-1
>>                                        QuesoGLC GLC implementation
>> ii  libglib-perl                         1:1.222-1
>>                                        Perl interface to the GLib and
>> GObject libra
>> ii  libglib2.0-0                         2.24.1-0ubuntu1
>>                                        The GLib library of C routines
>> ii  libglib2.0-cil                       2.12.9-4
>>                                        CLI binding for the GLib
>> utility library 2.1
>> ii  libglib2.0-cil-dev                   2.12.9-4
>>                                        CLI binding for the GLib
>> utility library 2.1
>> ii  libglib2.0-data                      2.24.1-0ubuntu1
>>                                        Common files for GLib library
>> ii  libglib2.0-dev                       2.24.1-0ubuntu1
>>                                        Development files for the GLib
>> library
>> ii  libglibmm-2.4-1c2a                   2.24.2-0ubuntu1
>>                                        C++ wrapper for the GLib
>> toolkit (shared lib
>> ii  libglitz-glx1                        0.5.6-1build1
>>                                        Glitz OpenGL library GLX
>> backend
>> ii  libglitz1                            0.5.6-1build1
>>                                        Glitz OpenGL image compositing
>> library
>> ii  libglpng                             1.45-6
>>                                        PNG loader for OpenGL
>> ii  libglu1-mesa
>> 7.9.0+git20100806.27041d7c-0ubuntu0sarvatt~lucid
>> The OpenGL utility library (GLU)
>> ii  libglu1-mesa-dev
>> 7.9.0+git20100806.27041d7c-0ubuntu0sarvatt~lucid
>> The OpenGL utility library -- development fi
>>
>> and I still feel it is a problem related to hardware...
>>
>> Regards,
>> Yihui
>> --
>> Yihui Xie <xieyihui at gmail.com>
>> Phone: 515-294-6609 Web: http://yihui.name
>> Department of Statistics, Iowa State University
>> 3211 Snedecor Hall, Ames, IA
>>
>>
>>
>> On Fri, Aug 6, 2010 at 6:53 PM, Tengfei Yin <yintengfei at gmail.com> wrote:
>> > Hi Yihui,
>> > Do you also have the same library for opengl as mine? in my last email,
>> I
>> > also attached a list for opengl library I have,
>> > you may try  this two first...
>> > libglu1-mesa
>> > libglu1-mesa-dev
>> > Best
>> > Tengfei
>>
>
>
>
> --
> Tengfei Yin
> MCDB PhD student
> 1620 Howe Hall, 2274,
> Iowa State University
> Ames, IA,50011-2274
> Homepage: www.tengfei.name
>
>
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>
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