# Clipping voxel data for volume rendering with an arbitrarily oriented clip-plane efficiently

**URL:** https://discourse.paraview.org/t/clipping-voxel-data-for-volume-rendering-with-an-arbitrarily-oriented-clip-plane-efficiently/2040
**Category:** ParaView Support
**Created:** [June 14, 2019, 10:34am UTC](https://discourse.paraview.org/t/clipping-voxel-data-for-volume-rendering-with-an-arbitrarily-oriented-clip-plane-efficiently/2040 "2019-06-14T10:34:01Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![romangrothausmann](https://discourse.paraview.org/user_avatar/discourse.paraview.org/romangrothausmann/32/1021_2.png) [@romangrothausmann](https://discourse.paraview.org/u/romangrothausmann)
#### Post date: [June 14, 2019, 10:34am UTC](https://discourse.paraview.org/t/clipping-voxel-data-for-volume-rendering-with-an-arbitrarily-oriented-clip-plane-efficiently/2040/1 "2019-06-14T10:34:01Z")

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Hi!

Some years ago tried to realize a PV plug-in that would clip large voxel data with a clip-plane (or other implicit function) for volume rendering efficiently by masking the voxe data instead of using the available clip-filter which cuts each voxel and results in an unstructured grid which takes much longer to render (as does the filter itself).  
[https://public.kitware.com/pipermail/paraview/2014-December/032883.html](https://public.kitware.com/pipermail/paraview/2014-December/032883.html)  
@utkarsh.ayachit gave a lot of feedback and tried to create such a plug-in and wrote ([https://public.kitware.com/pipermail/paraview/2013-August/029041.html](https://public.kitware.com/pipermail/paraview/2013-August/029041.html)):

> As I was working on the XML, it occurred to me that unfortunately this  
> cannot work in ParaView currently. The reason being that the VTK  
> module that contains the Image stencil classes is not enabled in the  
> default ParaView build. Also, there seem to be other issues with using  
> Image Stencils due to the general lack of support for the same in  
> ParaView. It will need some work to clean that up. I’m reporting a  
> bug: [http://paraview.org/Bug/view.php?id=14236](http://paraview.org/Bug/view.php?id=14236)

The bug is now on GL: [https://gitlab.kitware.com/paraview/paraview/issues/14236](https://gitlab.kitware.com/paraview/paraview/issues/14236)

Are there now other options to achieve the original goal of clipping large voxel dataset for volume rendering more efficiently than with the default clip-filter?