Hi,<div><br></div><div>Ben is correct, the OpenGL support in a VM is rarely sufficient to run all the features of MRView. The OpenGL renderer in these VMs is typically the default Microsoft software renderer, which is a basic OpenGL 1.1 implementation. Some of the features in MRView require OpenGL 1.2, which is most likely the reason for the crash. <br>
<br></div><div>Generally, I don't recommend running the MRtrix GUI components within a VM for this reason. Moreover, future versions will rely on OpenGL 2.0 (if not 3.0), so this problem is only going to get worse...</div>
<div><br></div><div>Cheers,</div><div><br></div><div>Donald.</div><div><br></div><div><br><div class="gmail_quote">On 8 October 2010 21:46, Jeurissen Ben <span dir="ltr"><<a href="mailto:Ben.Jeurissen@ua.ac.be">Ben.Jeurissen@ua.ac.be</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div lang="NL-BE" link="blue" vlink="purple">
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">I have never run the windows version of mrtrix in a virtual
machine. I am guessing your problem could have something to do with
lacking/incomplete opengl support of the video driver used inside your virtual
machine.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">What virtual machine are you using? Did you enable 3D
acceleration in the VM settings? Did you install additional VM video drivers
inside your VM?</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Could you start ‘mrview’ and then select “Help” and “OpenGL
info” and report the output here?</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Cheers,</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Ben</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt">From:</span></b><span lang="EN-US" style="font-size:10.0pt"> <a href="mailto:mrtrix-discussion-bounces@public.nitrc.org" target="_blank">mrtrix-discussion-bounces@public.nitrc.org</a>
[mailto:<a href="mailto:mrtrix-discussion-bounces@public.nitrc.org" target="_blank">mrtrix-discussion-bounces@public.nitrc.org</a>] <b>On Behalf Of </b>Keith
Hulsey<br>
<b>Sent:</b> donderdag 7 oktober 2010 22:50<br>
<b>To:</b> <a href="mailto:mrtrix-discussion@www.nitrc.org" target="_blank">mrtrix-discussion@www.nitrc.org</a><br>
<b>Subject:</b> [Mrtrix-discussion] error displaying tracks with MRview</span></p>
</div>
</div><div><div></div><div class="h5">
<p class="MsoNormal"> </p>
<div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;color:black">I installed MRtrix v0.2.9 on my
virtual machine that uses Windows XP. When I try to overlay an image with tracks
generated using streamtrack an error occurs which closes MRview.<br>
<br>
I generated the spherical harmonic representation of the DWI using dwi2SH. The
original images had 50 directions with b 1000 and 6 b 0 images. Two sets of
these made 112 original images per subject.<br>
<br>
The command I used for generating the tracts was:<br>
streamtrack -seed WM_mask.nii -mask brain_mask.nii SD_PROB dwi_image.nii
tracks.tck<br>
I pasted the output from track_info below.<br>
<br>
I want to try TDI using these images.<br>
<br>
Thanks, Keith<br>
<br>
<br>
Microsoft Windows XP [Version 5.1.2600]<br>
<br>
Y:\MRtrix>track_info -info tracks.tck<br>
track_info [INFO]: WARNING: malformed key/value entry
("max_num_attempts:") in f<br>
ile "tracks.tck" - ignored<br>
track_info [INFO]: error parsing spherical ROI specification
"Y:\MRtrix\WM_mask.<br>
nii" - assuming mask image<br>
track_info [INFO]: error parsing spherical ROI specification
"Y:\MRtrix\dti2cEC_<br>
brain_mask.nii" - assuming mask image<br>
***********************************<br>
Tracks file: "tracks.tck"<br>
count:
10000<br>
init_threshold: 0.2<br>
lmax:
12<br>
max_dist:
200<br>
max_num_tracks: 10000<br>
max_trials: 50<br>
method:
SD_PROB<br>
min_curv:
1<br>
min_dist:
10<br>
no_mask_interp: 0<br>
sh_precomputed: 1<br>
source:
Y:\MRtrix\SH.nii<br>
step_size:
0.2<br>
stop_when_included: 0<br>
threshold:
0.1<br>
total_count: 11067<br>
unidirectional: 0<br>
ROI:
seed Y:\MRtrix\WM_mask.nii<br>
ROI:
mask Y:\MRtrix\dti2cEC_brain_mask.nii</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<div class="MsoNormal" align="center" style="text-align:center">
<hr size="2" width="100%" align="center">
</div>
<p class="MsoNormal"><span style="font-size:10.0pt;color:blue"><br>
UT Southwestern Medical Center<br>
The future of medicine, today.</span></p>
</div></div></div>
</div>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Jacques-Donald Tournier (PhD)<br>Brain Research Institute, Melbourne, Australia<br>Tel: +61 (0)3 9496 4078<br>
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