# Is zfp used in VTK?
**URL:** https://discourse.vtk.org/t/is-zfp-used-in-vtk/786
**Category:** Development
**Created:** [April 19, 2019, 12:29am UTC](https://discourse.vtk.org/t/is-zfp-used-in-vtk/786 "2019-04-19T00:29:28Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@opoplawski](https://discourse.vtk.org/u/opoplawski)
#### Post date: [April 19, 2019, 12:29am UTC](https://discourse.vtk.org/t/is-zfp-used-in-vtk/786/1 "2019-04-19T00:29:28Z")
There is ThirdParty/zfp in the VTK source - but I can’t find any evidence that it is in use. Is there some planned future use or should it be removed?
[https://gitlab.kitware.com/vtk/vtk/issues/17540](https://gitlab.kitware.com/vtk/vtk/issues/17540)
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### Author:  [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)
#### Post date: [April 19, 2019, 12:56pm UTC](https://discourse.vtk.org/t/is-zfp-used-in-vtk/786/2 "2019-04-19T12:56:53Z")
Its (future) use is here: [https://gitlab.kitware.com/vtk/vtk/merge\_requests/2783](https://gitlab.kitware.com/vtk/vtk/merge_requests/2783)
The original contribution came in with adding zfp and the compression filter. I did the third party import steps separately so that one MR didn’t have to deal with that process and adding the code. The contributor’s time ran out though, so I started to take it over and fixed a bunch of memory leaks. However, without tests or knowledge of how to test it, it has stalled out due to a lack of feedback.
So: feel free to disable it if you wish today.
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### Author:  [@opoplawski](https://discourse.vtk.org/u/opoplawski)
#### Post date: [April 22, 2019, 9:23pm UTC](https://discourse.vtk.org/t/is-zfp-used-in-vtk/786/3 "2019-04-22T21:23:21Z")
Thanks for the info.