# opacity on ubuntu 20.04 and paraview v5.10.1

**URL:** https://discourse.paraview.org/t/opacity-on-ubuntu-20-04-and-paraview-v5-10-1/9640
**Category:** ParaView Support
**Tags:** vtk
**Created:** [May 17, 2022, 8:21am UTC](https://discourse.paraview.org/t/opacity-on-ubuntu-20-04-and-paraview-v5-10-1/9640 "2022-05-17T08:21:35Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![meret](https://discourse.paraview.org/user_avatar/discourse.paraview.org/meret/32/9216_2.png) [@meret](https://discourse.paraview.org/u/meret)
#### Post date: [May 17, 2022, 8:21am UTC](https://discourse.paraview.org/t/opacity-on-ubuntu-20-04-and-paraview-v5-10-1/9640/1 "2022-05-17T08:21:35Z")

</div>

Opacity of unstructured grids from .vtk files can not be reduced. The surface or wireframe representation simply disappears immediately.

The related posts have been checked but changing filter to D3 does not help and as it is the latest version updating is obviously not an option.

Re-installation has been tried.