# openVDB missing from Export options in Paraview 5.10.1
**URL:** https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887
**Category:** ParaView Support
**Created:** [June 22, 2022, 11:32pm UTC](https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887 "2022-06-22T23:32:54Z")
**Posts on this page:** 16
**Page:** 1
### Author:  [@synthetic\_penguin](https://discourse.paraview.org/u/synthetic_penguin)
#### Post date: [June 22, 2022, 11:32pm UTC](https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887/1 "2022-06-22T23:32:54Z")
I downloaded Paraview 5.10.1 for MacOS.
In the release notes, it says that it has a new OpenVDB writer.
[https://www.kitware.com/paraview-5-10-0-release-notes/#readers-writers-and-filters-changes](https://www.kitware.com/paraview-5-10-0-release-notes/#readers-writers-and-filters-changes)
I have VTK volume files I want to export to OpenVDB format, but that file format appears to be missing from the supported export files list.
[https://www.openvdb.org/](https://www.openvdb.org/)
What am I overlooking?
Thanks
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### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [June 23, 2022, 3:47am UTC](https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887/2 "2022-06-23T03:47:39Z")
Use File menu → Save Data. The .vdb writer is available via that menu.
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### Author:  [@synthetic\_penguin](https://discourse.paraview.org/u/synthetic_penguin)
#### Post date: [June 23, 2022, 4:41am UTC](https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887/3 "2022-06-23T04:41:35Z")
Hi Cory.
I’m not seeing a .vdb writer after selecting File menu → Save Data.
The “Files of Type” options I’m seeing are:
- CGNS Files
- Comma or Tabe Delimited Files
- EnSight File
- Exodus II File
- Legacy VTK
- Paraview Data File
- PVTK UnstructuredGrid Files
- VTK UnstructuredGrid Files
- Xdmf Data File
- Xdmf3 Data File
But not OpenVDB (\*.vdb)
What OS are you seeing this on?
Does it matter what the source data is?
I have loaded a VTK file that’s an unstructured grid with 3 data arrays of type float.
Could you share a screen grab where you as seeing a .vdb writer available via that menu?
Thanks
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### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [June 23, 2022, 2:49pm UTC](https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887/4 "2022-06-23T14:49:35Z")
Ah, the OpenVDB writer is available only for image data (uniform rectilinear grids) and point sets, not unstructured grids.
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### Author:  [@synthetic\_penguin](https://discourse.paraview.org/u/synthetic_penguin)
#### Post date: [June 23, 2022, 2:55pm UTC](https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887/5 "2022-06-23T14:55:41Z")
Darn.
Thanks for letting me know.
Would anyone in the Paraview community be interested in adding unstructured grid-\>OpenVDB?
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [June 23, 2022, 3:07pm UTC](https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887/6 "2022-06-23T15:07:07Z")
Hi @synthetic_penguin
You can just use the ResampleToImage filter.
Best,
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### Author:  [@synthetic\_penguin](https://discourse.paraview.org/u/synthetic_penguin)
#### Post date: [June 23, 2022, 3:09pm UTC](https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887/7 "2022-06-23T15:09:43Z")
Hi Mathieu,
I’ll give that a try.
Thanks
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### Author:  [@synthetic\_penguin](https://discourse.paraview.org/u/synthetic_penguin)
#### Post date: [June 23, 2022, 3:28pm UTC](https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887/8 "2022-06-23T15:28:56Z")
Hi Mathieu,
I selected the node to filter in the Pipeline Browser, then brought up the filter menu.
Unfortunately, all the filters, including ResampleToImage, are ghosted out.
What am I missing?
Thanks
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [June 23, 2022, 3:29pm UTC](https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887/9 "2022-06-23T15:29:24Z")
Press Apply, in the PropertiesPanel
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### Author:  [@synthetic\_penguin](https://discourse.paraview.org/u/synthetic_penguin)
#### Post date: [June 23, 2022, 3:35pm UTC](https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887/10 "2022-06-23T15:35:18Z")
Thanks, Mathieu.
I created the ResampleToImage.
However, when I select the new 3D image node, OpenVDB (\*.vdb) still does not show up in the Files of Type in the Save File dialog.
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### Author:  [@Andy\_Bauer](https://discourse.paraview.org/u/Andy_Bauer)
#### Post date: [June 23, 2022, 3:38pm UTC](https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887/11 "2022-06-23T15:38:07Z")
Something else is wrong here. I’m not sure what it is. With ParaView 5.10.1 you should be able to write out OpenVDB files for both vtkImageData and vtkUnstructuredGrids (which are vtkPointSets). I’m able to do this from the downloaded versions from [https://www.paraview.org/download/](https://www.paraview.org/download/) for Linux.
Beyond that though, you probably want to convert to vtkImageData since that uses OpenVDB voxels. vtkPointSets are output as point clouds which are likely not what most people want.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [June 23, 2022, 3:41pm UTC](https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887/12 "2022-06-23T15:41:21Z")
Maybe it is missing on MacOS ?
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### Author:  [@synthetic\_penguin](https://discourse.paraview.org/u/synthetic_penguin)
#### Post date: [June 23, 2022, 3:43pm UTC](https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887/13 "2022-06-23T15:43:38Z")
Hi Andy,
thanks for letting me know that you should be able to write out OpenVDB files for both vtkImageData and vtkUnstructuredGrids.
I’ll try the Linux version.
Which filter will convert unstructured grid to vtkImageData?
Thanks
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [June 23, 2022, 3:44pm UTC](https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887/14 "2022-06-23T15:44:16Z")
> [@synthetic\_penguin](#):
>
> Which filter will convert unstructured grid to vtkImageData?
ResampleToImage
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### Author:  [@synthetic\_penguin](https://discourse.paraview.org/u/synthetic_penguin)
#### Post date: [June 23, 2022, 3:53pm UTC](https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887/15 "2022-06-23T15:53:19Z")
I tried that, but OpenVDB (\*.vdb) is not showing up in the File-\>Save Data…-\>Save To File Types list.
I’m assuming that because I’m using the MacOS version of Paraview.
I’ll try the Linux version.
Thanks
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### Author:  [@aquanaut](https://discourse.paraview.org/u/aquanaut)
#### Post date: [June 29, 2022, 9:38am UTC](https://discourse.paraview.org/t/openvdb-missing-from-export-options-in-paraview-5-10-1/9887/16 "2022-06-29T09:38:43Z")
hi, what you want to do with the .vdb file? I want to render it with one variable to view in 3D scene.