# Problem with transparency with VTK \>= 8.0 on Linux

**URL:** https://discourse.vtk.org/t/problem-with-transparency-with-vtk-8-0-on-linux/3309
**Category:** Support
**Created:** [May 14, 2020, 3:48pm UTC](https://discourse.vtk.org/t/problem-with-transparency-with-vtk-8-0-on-linux/3309 "2020-05-14T15:48:55Z")
**Posts on this page:** 1
**Showing post:** 6

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### Author: ![tigarmo](https://discourse.vtk.org/user_avatar/discourse.vtk.org/tigarmo/32/1797_2.png) [@tigarmo](https://discourse.vtk.org/u/tigarmo)
#### Post date: [May 20, 2020, 12:52pm UTC](https://discourse.vtk.org/t/problem-with-transparency-with-vtk-8-0-on-linux/3309/6 "2020-05-20T12:52:47Z")

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As an update, I got someone to run the sample on a machine (non-remote) with different hardward/libs:

```auto
OpenGL renderer string: Radeon RX 5500 XT (NAVI14, DRM 3.35.0, 5.4.0-29-generic, LLVM 9.0.1)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 20.0.4
OpenGL core profile shading language version string: 4.60

```

In this setup the rendering works as expected. It works even if there they force software rendering via `LIBGL_ALWAYS_SOFTWARE=1 GALLIUM_DRIVER=llvmpipe python main.py`. Here’s the output from `glxinfo` in this case:

```auto
OpenGL vendor string: VMware, Inc.
OpenGL renderer string: llvmpipe (LLVM 9.0.1, 128 bits)
OpenGL core profile version string: 3.3 (Core Profile) Mesa 20.0.4

```

The main difference that I can see is that in this latest report the Mesa version is `20.0.4`, while in my original case it is `18.3.4`. Is there a minimum Mesa version for VTK, or versions that are known to present issues?

Thanks!

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