# Cut plane not shown in VR
**URL:** https://discourse.paraview.org/t/cut-plane-not-shown-in-vr/5408
**Category:** VR/AR
**Tags:** vr
**Created:** [September 23, 2020, 12:22pm UTC](https://discourse.paraview.org/t/cut-plane-not-shown-in-vr/5408 "2020-09-23T12:22:56Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@benny](https://discourse.paraview.org/u/benny)
#### Post date: [September 23, 2020, 12:22pm UTC](https://discourse.paraview.org/t/cut-plane-not-shown-in-vr/5408/1 "2020-09-23T12:22:56Z")
Hello!
I have a 3d scalar field in XDMF file format (from a fenics simulation from a colleague). If I cut the volume in desktop version (clip filter), I can see the values in the cut plane. However, if I cut the volume in virtual reality (crop plane or interactive crop tool) this is not the case, I then see only the hollow volume. Is this a bug or am I missing something? I am using the ‘surface’ representation, because choosing the ‘volume’ representation killed my computer when visualising it in VR.
I am using an Oculus Rift S with the openVR Plugin in Paraview version 5.8.1, Windows 10.
If there is any information missing I’ll be happy to provide it.
Thank you in advance!
Benny
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### Author:  [@martink](https://discourse.paraview.org/u/martink)
#### Post date: [September 24, 2020, 1:19pm UTC](https://discourse.paraview.org/t/cut-plane-not-shown-in-vr/5408/2 "2020-09-24T13:19:50Z")
Yes, the crop/cut as a filter processes the 3D volume and produces a new smaller 3D volume giving you the scalar values on the cut boundary. In VR that is typically too slow to be interactive so we use a rendering based crop. What that means is that the original data is rendered but any pixels that would cross the cut plane do not get drawn. For a volume (rendered as its shell) this means the shell gets cut open. It is very very fast but definitely a different technique more suited to cutting/cropping polygonal data than volumetric data.
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### Author:  [@benny](https://discourse.paraview.org/u/benny)
#### Post date: [September 28, 2020, 7:38am UTC](https://discourse.paraview.org/t/cut-plane-not-shown-in-vr/5408/3 "2020-09-28T07:38:19Z")
Many thanks for your answer!
Best, Benny