mrohn wrote:
Hi,
now we discovered that the fps drop down is related to the two sided
lightning. If we disable the support for the two sided lightning we have the
expected performance.
But this is not a really good solution for us.
Is there any assumption why this happens?
...
Hi,
now we discovered that the fps drop down is related to the two sided lightning.
If we disable the support for the two sided lightning we have the expected
performance.
But this is not a really good solution for us.
Is there any assumption why this happens?
...
Thank you!
Cheers,
dglenn wrote:
Jason Daly wrote:
On 05/18/2011 05:14 AM, Fred Smith wrote:
Hi,
The only problem that I personally heard about is about the slow transfer
speed to/from GPU memory on Fermi cards. DMA transfers are said to be
slower than on GTX 2xx hardware. I haven't seen
Hi, David,
4xx series slow specifically on readback from framebuffer\FBO to
texture\PBO\host memory (in GL, dunno about cuda\opencl). That is what all
people talking about. If you dont use this features much you will have no
problems whatsoever.
Cheers, Sergey.
19.05.2011, 03:27, David Glenn
hybr wrote:
Hi, David,
4xx series slow specifically on readback from framebuffer\FBO to
texture\PBO\host memory (in GL, dunno about cuda\opencl). That is what all
people talking about. If you dont use this features much you will have no
problems whatsoever.
Cheers, Sergey.
On 05/19/2011 12:07 PM, David Glenn wrote
Well I'm using a far chunk of terrain that is very texture based and I haven't
seen any issues. Maybe I'm making a mistake getting the 460's and sould try the
GTX 280.
By texture-based do you mean you're reading the texture image from the
GPU back
Jason Daly wrote:
On 05/19/2011 12:07 PM, David Glenn wrote
Well I'm using a far chunk of terrain that is very texture based and I
haven't seen any issues. Maybe I'm making a mistake getting the 460's and
sould try the GTX 280.
By texture-based do you mean you're reading the
Hi,
The only problem that I personally heard about is about the slow transfer speed
to/from GPU memory on Fermi cards. DMA transfers are said to be slower than on
GTX 2xx hardware. I haven't seen anything related to computing.
Cheers,
Fred
--
Read this topic online here:
On 05/18/2011 05:14 AM, Fred Smith wrote:
Hi,
The only problem that I personally heard about is about the slow transfer speed
to/from GPU memory on Fermi cards. DMA transfers are said to be slower than on
GTX 2xx hardware. I haven't seen anything related to computing.
I think it's
Greetings!
Well, given what I've been told by NVIDIA, that there is a Quadro group that if
you develop with that card series that they will be at my bacon call and there
is the GForce Group that lives in the nether regions.
Getting help for Quadro is easy since it built only by PNY and they
Jason Daly wrote:
On 05/18/2011 05:14 AM, Fred Smith wrote:
Hi,
The only problem that I personally heard about is about the slow transfer
speed to/from GPU memory on Fermi cards. DMA transfers are said to be
slower than on GTX 2xx hardware. I haven't seen anything related to
Hi,
we have a performance problem with the nVidia 400 series.
But first:
Our software is a 3D physics simulation. We use ODE for the physics. Qt is
responsible for the 2D GUI and OSG handles the 3D visualisation.
I changed my graphics-card from a nVidia 9600GT to a nVidia GTX460 (768mb of
On 05/17/2011 11:36 AM, Michael Rohn wrote:
Is there a known issue? I searched the board but I had no success.
The problem is also present on a nVidia GTX480.
Look at the links on the Wikipedia page (especially the link to the
OpenGL forum discussion). I haven't seen any official statement
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