# volume rendering in 3dslicer

**URL:** <https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185>\
**Category:** Support\
**Created:** [June 16, 2019, 10:48am UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185 "2019-06-16T10:48:41Z")\
**Posts on this page:** 16\
**Page:** 1

<div class="post-metadata">

**Author:** ![Manoj\_Bagare](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/manoj_bagare/32/3949_2.png) [@Manoj\_Bagare](https://discourse.slicer.org/u/Manoj_Bagare)\
**Post date:** [June 16, 2019, 10:48am UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185/1 "2019-06-16T10:48:41Z")

</div>

Dear sir,

Please find the attached file to find out the cause of error. I can’t able to do volume rendering, the software gets closed off itself when i click the eye icon in volume rendering.

I am using Dell Precision core i7 workstation with 16 GB Ram, 2.25 GH processor with in built graphic card and Windows 7 Professional. Please Help me with this issue.

Thanks and Regards

Manoj Bagare

 ![error](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/9/3/93a948f55a85cb9dac305f1851b38da83411d57a.jpeg) ![error1](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/6/7/67f352976f82bcfc6949c01ded37334a9443a5d1.jpeg)

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<div class="post-metadata">

**Author:** ![Manoj\_Bagare](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/manoj_bagare/32/3949_2.png) [@Manoj\_Bagare](https://discourse.slicer.org/u/Manoj_Bagare)\
**Post date:** [June 15, 2019, 2:35pm UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185/2 "2019-06-15T14:35:39Z")

</div>

Dear sir,

Please find the attached file to find out the cause of error. I can’t able to do volume rendering, the software gets closed off itself when i click the eye icon in volume rendering.

I am using Dell Precision core i7 workstation with 16 GB Ram, 2.25 GH processor with in built graphic card and Windows 7 Professional. Please Help me with this issue.

Thanks and Regards

Manoj Bagare

 ![error.jpg](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/9/3/93a948f55a85cb9dac305f1851b38da83411d57a.jpeg)

 ![error1.jpg](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/6/7/67f352976f82bcfc6949c01ded37334a9443a5d1.jpeg)

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<div class="post-metadata">

**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [June 15, 2019, 2:47pm UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185/3 "2019-06-15T14:47:41Z")

</div>

Does volume rendering work with the MRHead sample data set (available in Sample Data module)?

What graphics card and CPU do you have?

Is there any error or warning message in the application log? After you open in the menu: Help/Report a bug, find the previous entry in “Recent log files” list, click “Copy log messages to clipboard”, then paste the log text here.

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<div class="post-metadata">

**Author:** ![cpinter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/cpinter/32/7995_2.png) [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Post date:** [June 16, 2019, 2:38pm UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185/4 "2019-06-16T14:38:05Z")

</div>

Please follow the existing conversation instead of reposting the original question.

We cannot see the useful part of the log, because your screenshot only shows the beginning, and errors are expected to show towards the end. Please open in the menu: Help/Report a bug, find the previous entry in “Recent log files” list, click “Copy log messages to clipboard”, then paste the log text here.

Also please provide details about the CPU and GPU you have.

I’d like to add that your screenshot shows that you tried using CPU rendering. If you have a decent graphics card, then you should switch to GPU volume rendering.

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<div class="post-metadata">

**Author:** ![Manoj\_Bagare](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/manoj_bagare/32/3949_2.png) [@Manoj\_Bagare](https://discourse.slicer.org/u/Manoj_Bagare)\
**Post date:** [June 16, 2019, 3:01pm UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185/5 "2019-06-16T15:01:31Z")

</div>

```nohighlight
[DEBUG][Qt] 16.06.2019 20:28:24 [] (unknown:0) - Session start time .......: 2019-06-16 20:28:24
[DEBUG][Qt] 16.06.2019 20:28:24 [] (unknown:0) - Slicer version ...........: 4.11.0-2019-06-14 (revision 28295) win-amd64 - installed release
[DEBUG][Qt] 16.06.2019 20:28:25 [] (unknown:0) - Operating system .........: Windows / Professional / (Build 9200) - 64-bit
[DEBUG][Qt] 16.06.2019 20:28:25 [] (unknown:0) - Memory ...................: 16291 MB physical, 18723 MB virtual
[DEBUG][Qt] 16.06.2019 20:28:25 [] (unknown:0) - CPU ......................: GenuineIntel , 8 cores, 8 logical processors
[DEBUG][Qt] 16.06.2019 20:28:25 [] (unknown:0) - VTK configuration ........: OpenGL2 rendering, TBB threading
[DEBUG][Qt] 16.06.2019 20:28:25 [] (unknown:0) - Qt configuration .........: version 5.10.1, with SSL, requested OpenGL 3.2 (compatibility profile)
[DEBUG][Qt] 16.06.2019 20:28:25 [] (unknown:0) - Developer mode enabled ...: no
[DEBUG][Qt] 16.06.2019 20:28:25 [] (unknown:0) - Prefer executable CLI ....: yes
[DEBUG][Qt] 16.06.2019 20:28:25 [] (unknown:0) - Additional module paths ..: (none)
[DEBUG][Python] 16.06.2019 20:28:26 [Python] (C:\Users\DELL\AppData\Local\NA-MIC\Slicer 4.11.0-2019-06-14\lib\Slicer-4.11\qt-scripted-modules\SubjectHierarchyPlugins\AbstractScriptedSubjectHierarchyPlugin.py:36) - Scripted subject hierarchy plugin registered: Annotations
[DEBUG][Python] 16.06.2019 20:28:27 [Python] (C:\Users\DELL\AppData\Local\NA-MIC\Slicer 4.11.0-2019-06-14\lib\Slicer-4.11\qt-scripted-modules\SubjectHierarchyPlugins\AbstractScriptedSubjectHierarchyPlugin.py:36) - Scripted subject hierarchy plugin registered: SegmentEditor
[DEBUG][Python] 16.06.2019 20:28:27 [Python] (C:\Users\DELL\AppData\Local\NA-MIC\Slicer 4.11.0-2019-06-14\lib\Slicer-4.11\qt-scripted-modules\SubjectHierarchyPlugins\AbstractScriptedSubjectHierarchyPlugin.py:36) - Scripted subject hierarchy plugin registered: SegmentStatistics
[DEBUG][Qt] 16.06.2019 20:28:27 [] (unknown:0) - Switch to module: "Welcome"
[DEBUG][Qt] 16.06.2019 20:28:30 [] (unknown:0) - Switch to module: "DICOM"
[DEBUG][Python] 16.06.2019 20:28:36 [Python] (C:/Users/DELL/AppData/Local/NA-MIC/Slicer 4.11.0-2019-06-14/bin/../lib/Slicer-4.11/qt-scripted-modules/MultiVolumeImporterPlugin.py:453) - MultiVolumeImportPlugin::examine
[DEBUG][Python] 16.06.2019 20:28:36 [Python] (C:/Users/DELL/AppData/Local/NA-MIC/Slicer 4.11.0-2019-06-14/bin/../lib/Slicer-4.11/qt-scripted-modules/MultiVolumeImporterPlugin.py:493) - DICOMMultiVolumePlugin found 0 multivolumes!
[DEBUG][Python] 16.06.2019 20:28:36 [Python] (C:/Users/DELL/AppData/Local/NA-MIC/Slicer 4.11.0-2019-06-14/bin/../lib/Slicer-4.11/qt-scripted-modules/MultiVolumeImporterPlugin.py:165) - MultiVolumeImportPlugin:examineMultiseries
[DEBUG][Python] 16.06.2019 20:28:36 [Python] (C:/Users/DELL/AppData/Local/NA-MIC/Slicer 4.11.0-2019-06-14/bin/../lib/Slicer-4.11/qt-scripted-modules/MultiVolumeImporterPlugin.py:170) - DICOMMultiVolumePlugin found 0 multivolumes!
[INFO][Python] 16.06.2019 20:28:36 [Python] (C:/Users/DELL/AppData/Local/NA-MIC/Slicer 4.11.0-2019-06-14/bin/../lib/Slicer-4.11/qt-scripted-modules/DICOMScalarVolumePlugin.py:315) - Loading with imageIOName: GDCM
[INFO][Python] 16.06.2019 20:28:36 [Python] (C:/Users/DELL/AppData/Local/NA-MIC/Slicer 4.11.0-2019-06-14/bin/../lib/Slicer-4.11/qt-scripted-modules/DICOMScalarVolumePlugin.py:387) - Window/level found in DICOM tags (center=1048.0, width=4096.0) has been applied to volume 1: 3D CBCT Image Set
[INFO][Stream] 16.06.2019 20:28:36 [] (unknown:0) - Loading with imageIOName: GDCM
[INFO][Stream] 16.06.2019 20:28:36 [] (unknown:0) - Window/level found in DICOM tags (center=1048.0, width=4096.0) has been applied to volume 1: 3D CBCT Image Set
[DEBUG][Qt] 16.06.2019 20:28:43 [] (unknown:0) - Switch to module: "VolumeRendering"

```

I am using Dell Precision core i7 workstation with 16 GB Ram, 2.25 GH processor with in built graphic card and Windows 7 Professional. Please Help me with this issue.

---

<div class="post-metadata">

**Author:** ![Manoj\_Bagare](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/manoj_bagare/32/3949_2.png) [@Manoj\_Bagare](https://discourse.slicer.org/u/Manoj_Bagare)\
**Post date:** [June 16, 2019, 3:14pm UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185/6 "2019-06-16T15:14:16Z")

</div>

Dear sir,

Please find the attachment for the files that i need to work on volume rendering. Please help me to find the solution to the problem.

(Attachment 3DSlice1.dcm is missing)

(Attachment 3DSlice2.dcm is missing)

---

<div class="post-metadata">

**Author:** ![cpinter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/cpinter/32/7995_2.png) [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Post date:** [June 16, 2019, 3:29pm UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185/7 "2019-06-16T15:29:06Z")

</div>

Thanks for the log! It does not show any errors. Please confirm that this is from a session where it crashed.

What happens if you load the MRHead volume in the Sample Data module and try to render that?

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<div class="post-metadata">

**Author:** ![Manoj\_Bagare](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/manoj_bagare/32/3949_2.png) [@Manoj\_Bagare](https://discourse.slicer.org/u/Manoj_Bagare)\
**Post date:** [June 16, 2019, 2:46pm UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185/8 "2019-06-16T14:46:57Z")

</div>

Yes. volume rendering is working with the MRHead sample data set.

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<div class="post-metadata">

**Author:** ![cpinter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/cpinter/32/7995_2.png) [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Post date:** [June 16, 2019, 3:31pm UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185/9 "2019-06-16T15:31:04Z")

</div>

Your attached files did not go through. Please upload them to Dropbox/OneDrive/Google Drive and share the link.

---

<div class="post-metadata">

**Author:** ![Manoj\_Bagare](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/manoj_bagare/32/3949_2.png) [@Manoj\_Bagare](https://discourse.slicer.org/u/Manoj_Bagare)\
**Post date:** [June 16, 2019, 3:40pm UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185/10 "2019-06-16T15:40:27Z")

</div>

The rendering of MRHead sample data is successfully done. But i can’t render my files.

---

<div class="post-metadata">

**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [June 18, 2019, 7:12pm UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185/11 "2019-06-18T19:12:12Z")

</div>

Could you upload any of your failing data sets somewhere and copy the link here?

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<div class="post-metadata">

**Author:** ![Manoj\_Bagare](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/manoj_bagare/32/3949_2.png) [@Manoj\_Bagare](https://discourse.slicer.org/u/Manoj_Bagare)\
**Post date:** [June 19, 2019, 9:44am UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185/12 "2019-06-19T09:44:22Z")

</div>

Dear sir,

Please click on the below link for the dicom files. I am not able to do volume rendering for this dicom files.

[https://drive.google.com/open?id=1zCN4\_cT6nc\_ndojNMvcd7E30u6ONxKAl](https://drive.google.com/open?id=1zCN4_cT6nc_ndojNMvcd7E30u6ONxKAl)

---

<div class="post-metadata">

**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [June 19, 2019, 5:46pm UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185/13 "2019-06-19T17:46:18Z")

</div>

Works perfectly fine for me with a preview version from 6/14

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/b/3/b3d3d66651e3ee030f6dd14c57f3c4be45e1f78b.jpeg)

---

<div class="post-metadata">

**Author:** ![Manoj\_Bagare](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/manoj_bagare/32/3949_2.png) [@Manoj\_Bagare](https://discourse.slicer.org/u/Manoj_Bagare)\
**Post date:** [June 19, 2019, 6:14pm UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185/14 "2019-06-19T18:14:01Z")

</div>

Dear sir,

Can you please tell me the steps to carry out till volume rendering. I installed software newly in my pc and I am not getting what setting i am missing. Please help me by sending steps to carry out volume rendering.

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<div class="post-metadata">

**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [June 19, 2019, 7:42pm UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185/15 "2019-06-19T19:42:37Z")

</div>

Loading and volume rendering worked perfectly for me, too (Slicer-4.10.2, Windows10, NVidia GeForce RTX 2080). I drag-and-dropped the two folders to the application screen, accepted the offer to import them as DICOM, loaded using DICOM module, and visualized using volume rendering module, GPU volume rendering method.

---

<div class="post-metadata">

**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [June 20, 2019, 12:35am UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185/16 "2019-06-20T00:35:04Z")

</div>

After you import your DICOM sequence, switch to volume rendering module, click on the eye icon, and then adjust the transfer function. That’s all there is to it (at least for me).

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/4/d/4dfae386750112a32cf734939823a09c75334298.png)