# ver5.8 volume rendering doesn't work

**URL:** https://discourse.paraview.org/t/ver5-8-volume-rendering-doesnt-work/3742
**Category:** ParaView Support
**Created:** [March 4, 2020, 2:16am UTC](https://discourse.paraview.org/t/ver5-8-volume-rendering-doesnt-work/3742 "2020-03-04T02:16:21Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![chchung](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/c/47e85d/32.png) [@chchung](https://discourse.paraview.org/u/chchung)
#### Post date: [March 4, 2020, 2:16am UTC](https://discourse.paraview.org/t/ver5-8-volume-rendering-doesnt-work/3742/1 "2020-03-04T02:16:21Z")

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I am using Mac Catalina, 8G RAM. When using paraView ver 5.8, after restoring to default settings, I ran the example disk\_out\_ref.ex2 in the tutorial Ex 2.16, it became a black screen in the view window. Then I switched to ver 5.7, the problem the same. But when I switch back to ver 5.6, it works. Is it a bug?

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [March 4, 2020, 2:21am UTC](https://discourse.paraview.org/t/ver5-8-volume-rendering-doesnt-work/3742/2 "2020-03-04T02:21:36Z")

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@cory.quammen

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### Author: ![cory.quammen](https://discourse.paraview.org/user_avatar/discourse.paraview.org/cory.quammen/32/11193_2.png) [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [March 4, 2020, 12:33pm UTC](https://discourse.paraview.org/t/ver5-8-volume-rendering-doesnt-work/3742/3 "2020-03-04T12:33:16Z")

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It does sound like a bug. Note that we have not been testing Catalina - we’ll need to at some point.

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### Author: ![jourdain](https://discourse.paraview.org/user_avatar/discourse.paraview.org/jourdain/32/11_2.png) [@jourdain](https://discourse.paraview.org/u/jourdain)
#### Post date: [March 4, 2020, 4:58pm UTC](https://discourse.paraview.org/t/ver5-8-volume-rendering-doesnt-work/3742/4 "2020-03-04T16:58:21Z")

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I just tried and it is working for me even if I’m getting this error

```auto
Warning: In /Users/kitware/dashboards/buildbot-slave/a64f5607/build/superbuild/paraview/src/VTK/Rendering/VolumeOpenGL2/vtkOpenGLProjectedTetrahedraMapper.cxx, line 290
vtkOpenGLProjectedTetrahedraMapper (0x7f7f15908c50): Disabling floating point framebuffer: Unsupported hardware. Volume rendering will continue, thoughartifacts may be present.

```