# Volume rendering module issue with imported JPG sequence

**URL:** <https://discourse.slicer.org/t/volume-rendering-module-issue-with-imported-jpg-sequence/3283>\
**Category:** Support\
**Created:** [June 25, 2018, 4:34pm UTC](https://discourse.slicer.org/t/volume-rendering-module-issue-with-imported-jpg-sequence/3283 "2018-06-25T16:34:18Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![LeviAthan](https://avatars.discourse-cdn.com/v4/letter/l/da6949/32.png) [@LeviAthan](https://discourse.slicer.org/u/LeviAthan)\
**Post date:** [June 25, 2018, 4:34pm UTC](https://discourse.slicer.org/t/volume-rendering-module-issue-with-imported-jpg-sequence/3283/1 "2018-06-25T16:34:18Z")

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Hi everyone,

I am trying to use the volume rendering module on a volume i imported from a sequence of grayscale JPG images. The sequences I have are thousands of microscopic slices of nerve specimens.  
When I try to use the volume rendering module i only get to see the top and bottom slice of the volume in the 3D volume.  
Please see the screenshot below. I managed to get the background transparent with the opacity settings but still i can only see the top and bottom slices. When i change the opacity settings, it shows me a solid block of slices, but i can’t manage to see only the nerve-parts of the slices in the rendering.  
Is this a known limitation when working with non-DICOM data or is there something I could do better?

Any advice is appreciated!

 ![Slicer-forum](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/b/5/b50d414397f29170efcd440aac8852258466fbcd.jpeg)

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**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 25, 2018, 4:38pm UTC](https://discourse.slicer.org/t/volume-rendering-module-issue-with-imported-jpg-sequence/3283/2 "2018-06-25T16:38:04Z")

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This kind of volume rendering appearance usually indicates that your GPU is not compatible with Slicer.

Slicer-4.9 (nightly version of Slicer) uses new software interface, which is compatible with much wider range of GPUs, so I would recommend to switch to a recent nightly version.

If you do not want to switch to nightly builds then you need to select CPU volume rendering option, or upgrade your GPU.