# Volume rendering does not appear
**URL:** https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303
**Category:** Support
**Tags:** volume-rendering
**Created:** [October 5, 2018, 3:44pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303 "2018-10-05T15:44:09Z")
**Posts on this page:** 18
**Page:** 1
### Author:  [@Carolina3D](https://discourse.slicer.org/u/Carolina3D)
#### Post date: [October 5, 2018, 3:44pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/1 "2018-10-05T15:44:09Z")
Operating system: Windows
Slicer version:4.8.1
Expected behavior: GIve me a volume redering picture
Actual behavior: The program errors every time.
Do I have a to bad computer? HP Spectra Intel core i7 Geforce
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### Author:  [@cpinter](https://discourse.slicer.org/u/cpinter)
#### Post date: [October 5, 2018, 3:50pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/2 "2018-10-05T15:50:56Z")
See [https://www.slicer.org/wiki/Documentation/4.8/SlicerApplication/HardwareConfiguration](https://www.slicer.org/wiki/Documentation/4.8/SlicerApplication/HardwareConfiguration)
Can you please give us the exact type of the GPU in that laptop and the amount of RAM it has?
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### Author:  [@Carolina3D](https://discourse.slicer.org/u/Carolina3D)
#### Post date: [October 5, 2018, 4:22pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/3 "2018-10-05T16:22:15Z")
Hi,
Geforce GTX 1080 and 8 gb RAM.
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### Author:  [@cpinter](https://discourse.slicer.org/u/cpinter)
#### Post date: [October 5, 2018, 4:26pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/4 "2018-10-05T16:26:51Z")
Definitely not too weak. Do you have issues with volume rendering?
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### Author:  [@Carolina3D](https://discourse.slicer.org/u/Carolina3D)
#### Post date: [October 5, 2018, 4:31pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/5 "2018-10-05T16:31:02Z")
Yes, the program stops working when I ask for a volume renderaing and only give me a White Picture. Sometimes it works, but then computer begins to work so hard and slowly.
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### Author:  [@cpinter](https://discourse.slicer.org/u/cpinter)
#### Post date: [October 5, 2018, 4:36pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/6 "2018-10-05T16:36:08Z")
Make sure GPU volume rendering is selected instead of the degfault CPU.
> [@Carolina3D](#):
>
> program stops working when I ask for a volume renderaing and only give me a White Picture
Please elaborate on this. What steps do you exactly take after starting Slicer? What does it mean “stops working” and “white picture”?
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### Author:  [@Carolina3D](https://discourse.slicer.org/u/Carolina3D)
#### Post date: [October 5, 2018, 4:50pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/7 "2018-10-05T16:50:31Z")
 —the White Picture
I loading the dicom files- and the selects volume rendering in the menu. Klick on the Eye and the program Begins to work.
Slowly I mean that the I can not do anything els with the computer and if I move the mouse it Begins to thinking and the program dosent answer at all and I need to turn the program off with the activity manager.
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### Author:  [@brhoom](https://discourse.slicer.org/u/brhoom)
#### Post date: [October 5, 2018, 4:53pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/8 "2018-10-05T16:53:25Z")
Maybe the computer has two graphics card and the default working one is not the GTX?
Or maybe it is driver problem, what about other programs e.g 3D games do they work?
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### Author:  [@muratmaga](https://discourse.slicer.org/u/muratmaga)
#### Post date: [October 5, 2018, 4:55pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/9 "2018-10-05T16:55:43Z")
Is this a laptop? In any event, open the Nvidia control panel, navigate to the application settings to check the openGL rendering is done by the Geforce, not the integrated GPU…
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### Author:  [@Carolina3D](https://discourse.slicer.org/u/Carolina3D)
#### Post date: [October 5, 2018, 4:57pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/10 "2018-10-05T16:57:45Z")
> [@brhoom](#):
>
> Maybe the computer has two graphics card and the default working one is not the GTX?
>
> Or maybe it is driver problem, what about other programs e.g 3D games do they work?
No it is only one graphic card on this computer. And I work i programs like inspier, meshmixer, spaceclaim, blender, fusion 360 and that work with any problems.
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### Author:  [@Carolina3D](https://discourse.slicer.org/u/Carolina3D)
#### Post date: [October 5, 2018, 5:00pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/11 "2018-10-05T17:00:36Z")
> [@muratmaga](#):
>
> Is this a laptop? In any event, open the Nvidia control panel, navigate to the application settings to check the openGL rendering is done by the Geforce, not the integrated GPU…
Yes it is a laptop. Ok I will check on that.
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### Author:  [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)
#### Post date: [October 5, 2018, 5:01pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/12 "2018-10-05T17:01:43Z")
As @cpinter suggested, make sure you are specifying the GPU rendering option. In the screenshot you posted it shows you are using “VTK CPU Ray Casting”. Change this to the GPU option.
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### Author:  [@brhoom](https://discourse.slicer.org/u/brhoom)
#### Post date: [October 5, 2018, 5:18pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/13 "2018-10-05T17:18:55Z")
> In the screenshot you posted it shows you are using “VTK CPU Ray Casting”. Change this to the GPU option.
If nothing change, try the brain image from Slicer sample just to check if the problem is from Slicer not from the your image. If the brain image does not work try to remove slicer and re-install it. If it works, then maybe your image is very large, try to crop it to have a smaller image.
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### Author:  [@Carolina3D](https://discourse.slicer.org/u/Carolina3D)
#### Post date: [October 5, 2018, 5:19pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/14 "2018-10-05T17:19:00Z")
Hi, yes I try that but that gives me only some shadows in the 3D window, even if I select ct-bone on the preset.
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### Author:  [@Carolina3D](https://discourse.slicer.org/u/Carolina3D)
#### Post date: [October 5, 2018, 5:20pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/15 "2018-10-05T17:20:10Z")
> [@brhoom](#):
>
> If nothing change, try the brain image from Slicer sample just to check if the problem is from Slicer not from the your image. If the brain image does not work try to remove slicer and re-install it. If it works, then maybe your image is very large, try to crop it to have a smaller image.
Thanks, I will try that!
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### Author:  [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [October 5, 2018, 5:27pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/16 "2018-10-05T17:27:05Z")
If CPU volume rendering does not work then it means there is a problem with your data and so GPU volume rendering is not expected to work either.
Please also try with latest nightly version of Slicer. It supports many more GPUs than Slicer-4.8.1.
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### Author:  [@rkikinis](https://discourse.slicer.org/u/rkikinis)
#### Post date: [October 5, 2018, 5:46pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/17 "2018-10-05T17:46:38Z")
Hi
Can you also check the layout manager? What layout are you using?
Best
Ron
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### Author:  [@Carolina3D](https://discourse.slicer.org/u/Carolina3D)
#### Post date: [October 5, 2018, 6:30pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-appear/4303/18 "2018-10-05T18:30:00Z")
Thanks, with the 3D slicer 4.9.0 all works fine so far.