Another note from Nicky Daniels that might help someone else:  "We want to 
upgrade a couple of our computers and were testing different graphic cards to 
check if they would solve the issue. The Nvidia card described by other users 
worked fine, as well as the AMD model C326 and B304."


On Aug 12, 2013, at 6:57 AM, "Schellekens, W." <w.schellek...@umcutrecht.nl> 
wrote:

> Hi,
> 
> Sorry, I should have mentioned this in my previous e-mail, but I am running 
> the most recent drivers of the HD4000 graphics card. Furthermore, I'm also 
> running Ubuntu 13.04 (x64) on my current system (dual boot, so no virtual box 
> or anything), and there I experience the exact same thing (maybe even worse). 
> When using the HD4000 card, Caret v5.65 just hangs as soon as I click on the 
> surface or edit voxels. However, when I switch to the Nvidia card, Caret runs 
> fine again. So in my case, the problem occurs both at windows 7 and Ubuntu 
> 13.04. Let me know, if I can be of any further help.
> Cheers,
> 
> Wouter Schellekens
> --------------------------------------------------------------------------------------
> Brain Center Rudolf Magnus
> Neurology & Neurosurgery, Brain Division, UMC Utrecht
> Postal address: Str. 4.205, Postbus 85060, 3508 AB, Utrecht
> Visit: Str. 4.115, Universiteitsweg 100, 3584 CG, Utrecht
> E-mail: w.schellek...@umcutrecht.nl
> 
> ________________________________________
> Van: caret-users-boun...@brainvis.wustl.edu 
> [caret-users-boun...@brainvis.wustl.edu] namens Donna Dierker 
> [do...@brainvis.wustl.edu]
> Verzonden: vrijdag 9 augustus 2013 16:58
> Aan: Caret, SureFit, and SuMS software users
> Onderwerp: Re: [caret-users] Voxel editing slowdown?
> 
> There have been some off-list messages on this thread, and I wanted to share 
> this:
> 
> Tim Coalson wrote:
>> ... it seems that the previous generation on-CPU graphics didn't have this 
>> problem.  The newer generation having this problem with the same code seems 
>> like the driver might be the culprit - ensure you have the latest graphics 
>> drivers.  If it still occurs, perhaps we could contact intel and let them 
>> know of the problem.  They might just brush it off (caret5 is using an old 
>> version of openGL), but you never know.
> 
> Jon Schindler wrote:
>> As Tim says, one factor is that they are underpowered compared to discrete 
>> graphics cards.  However, another factor is that since Intel's attempt to 
>> make a GPU is relatively recent, and they aren't trying to support high-end 
>> legacy applications (professional OpenGL applications), they may not have 
>> optimized the version of OpenGL that we use, which is fairly outdated, and 
>> used primarily in expensive legacy OpenGL applications.  Most consumer 
>> OpenGL apps, which are Intel's target market, tend not to require extremely 
>> fast OpenGL 2.x support (as they've moved on to OpenGL 3.x+), so we may be 
>> witnessing some slowdowns due to the version of OpenGL we are using.
> 
> 
> Make sure your graphics card driver is up-to-date.  It would be nice to know 
> whether that helps any of the three we know experiencing this problem.  
> (Also, whether anyone is seeing it on a platform other than windows.)
> 
> 
> On Aug 7, 2013, at 11:45 AM, Donna Dierker <do...@brainvis.wustl.edu> wrote:
> 
>> I have emailed nicky, the first one who reported this issue, to see what 
>> graphics card she was using when she ran into this.
>> 
>> Hopefully Steven is still tuned into this thread.
>> 
>> This information is most helpful, Wouter.  Thank you much for posting these 
>> details.
>> 
>> 
>> On Aug 6, 2013, at 12:51 PM, "Schellekens, W." <w.schellek...@umcutrecht.nl> 
>> wrote:
>> 
>>> Hi,
>>> 
>>> I'd like to contribute to this topic, although I'm not sure of what use 
>>> it'll be...
>>> 
>>> I'm experiencing the slowdown as well on a new windows 7 64bit machine. But 
>>> I may have found a reason why.
>>> 
>>> I used to be able to use Caret v5.65 on my older windows 7 64bit laptop 
>>> just fine. The main difference between that older laptop and my current one 
>>> is the processor. The older one was a 2nd gen intel i3, and the current one 
>>> is a 3th gen intel i7. Except for having higher clock rate now, something 
>>> else has changed as well: the onboard graphics processor from HD3000 to 
>>> HD4000. In addition to the onboard intel graphics chip, I also have a 
>>> low-end Nvidia Geforce 610M graphics chip, which performance is quite 
>>> similar to the HD4000.
>>> 
>>> Now, I still have the exact copy of Caret v5.65 I installed on the 2nd gen 
>>> i3, and installed that one on my current system. When I'm using the HD4000 
>>> graphics chip, Caret runs horrendously slow (editing voxels, node IDs, 
>>> right mouse button, etc.). However, when I change to the Nvidia chip, Caret 
>>> runs fine. My best guess is, that Caret and the HD4000 chip don't play nice 
>>> together.
>>> 
>>> It would be interesting to see, if the other guys that experience slowdowns 
>>> are using the HD4000 chip as well.
>>> Hopefully, this has helped someone.
>>> Cheers,
>>> 
>>> Wouter Schellekens
>>> --------------------------------------------------------------------------------------
>>> Brain Center Rudolf Magnus
>>> Neurology & Neurosurgery, Brain Division, UMC Utrecht
>>> Postal address: Str. 4.205, Postbus 85060, 3508 AB, Utrecht
>>> Visit: Str. 4.115, Universiteitsweg 100, 3584 CG, Utrecht
>>> E-mail: w.schellek...@umcutrecht.nl
>>> 
>>> 
>>> ________________________________________
>>> Van: caret-users-boun...@brainvis.wustl.edu 
>>> [caret-users-boun...@brainvis.wustl.edu] namens Donna Dierker 
>>> [do...@brainvis.wustl.edu]
>>> Verzonden: maandag 5 augustus 2013 21:00
>>> Aan: Caret, SureFit, and SuMS software users
>>> Onderwerp: Re: [caret-users] Voxel editing slowdown?
>>> 
>>> We can rule out volume size as an issue, then.
>>> 
>>> Both complaints along these lines came from Windows users.
>>> 
>>> The only other idea that comes to mind (okay, delivered by another user) is 
>>> trying the neurodebian virtual machine.  See if voxel editing is more 
>>> responsive that way.
>>> 
>>> Apart from editing in another software package like MRIcron, and then 
>>> prepare for flattening using the steps near the bottom of this page:
>>> 
>>> http://brainvis.wustl.edu/help/peak_tweaking/
>>> 
>>> I wish I knew of a quick fix.
>>> 
>>> 
>>> On Aug 5, 2013, at 12:42 PM, Steven Lu <kesslersyndr...@ucla.edu> wrote:
>>> 
>>>> Thank you for the reply!
>>>> 
>>>> I am indeed running Windows (7 Professional 64-bit). I get similar delays 
>>>> when opening the Identify Window after clicking anywhere on my image. The 
>>>> dimensions of my volume are 78x182x128 (right hemisphere), but I get the 
>>>> same slowdown with the Identify Window regardless of the volume used 
>>>> (likely the same effect with voxel editing.
>>>> 
>>>> Best,
>>>> Steven
>>>> 
>>>> On Mon, Aug 5, 2013 at 8:02 AM, Donna Dierker <do...@brainvis.wustl.edu> 
>>>> wrote:
>>>> See this thread:
>>>> 
>>>> http://www.mail-archive.com/caret-users@brainvis.wustl.edu/msg02842.html
>>>> 
>>>> Are you running Caret on Windows, too?
>>>> 
>>>> Out of curiosity, what are the dimensions of the segmentation volume you 
>>>> are editing?
>>>> 
>>>> 
>>>> On Aug 4, 2013, at 8:45 PM, Steven Lu <kesslersyndr...@ucla.edu> wrote:
>>>> 
>>>>> Hi, I've been working on segmentation and the voxel editing tools (mainly 
>>>>> Turn Voxels On and Turn Voxels Off) show very delayed responses (about 2 
>>>>> seconds after clicking). I'm wondering if anybody else has experienced 
>>>>> this and, if so, what can be done about it?
>>>>> _______________________________________________
>>>>> caret-users mailing list
>>>>> caret-users@brainvis.wustl.edu
>>>>> http://brainvis.wustl.edu/mailman/listinfo/caret-users
>>>> 
>>>> 
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