VTK\_MODULE\_INIT (vtkRenderingOpenGL2);
VTK\_MODULE\_INIT (vtkInteractionStyle);
int main(int argc, char\*\* argv)
{
QApplication app( argc, argv );
QVTKOpenGLWidget widget;
widget.resize(640,384);
```
vtkGenericDataObjectReader *objectReader = vtkGenericDataObjectReader::New();
objectReader->SetFileName("kube.vtk");
objectReader->Update();
vtkPolyData* g_poly_data = vtkPolyData::New ();
g_poly_data = objectReader->GetPolyDataOutput();
vtkGenericOpenGLRenderWindow *renderWindow = vtkGenericOpenGLRenderWindow::New();
```
vtkRenderer \*renderer = vtkRenderer::New();
vtkPolyDataMapper\* g\_mapper = vtkPolyDataMapper::New();
g\_mapper -\>SetInputData (g\_poly\_data);
vtkActor \*actor = vtkActor::New();
actor -\>SetMapper(g\_mapper);
actor-\>GetProperty()-\>SetColor (1,0,0);
actor-\>GetProperty()-\>SetRepresentationToSurface();
renderer-\>AddActor(actor);
renderer-\>SetBackground(0.2, 0.4, 0.8);
renderWindow-\>AddRenderer(renderer);
widget.SetRenderWindow(renderWindow);
widget.show();
app.exec();
renderWindow-\>Delete();
renderer-\>Delete();
actor-\>Delete();
g\_mapper-\>Delete();
return 0;
}
Any suggestion is appreciated.
---
### Author:  [@justauser](https://discourse.vtk.org/u/justauser)
#### Post date: [February 5, 2020, 8:15am UTC](https://discourse.vtk.org/t/error-glsl-1-50-is-not-supported/1444/2 "2020-02-05T08:15:59Z")
Did you ever find a solution or a workaround?
When I got this error running someone else’s program I found that it worked if I set this:
MESA\_GL\_VERSION\_OVERRIDE=3.2
---
### Author:  [@Jingnan\_Jia](https://discourse.vtk.org/u/Jingnan_Jia)
#### Post date: [August 27, 2020, 8:25pm UTC](https://discourse.vtk.org/t/error-glsl-1-50-is-not-supported/1444/3 "2020-08-27T20:25:22Z")
Thanks for your commit. I succeed with this line.
---
### Author:  [@rohit-kumar-j](https://discourse.vtk.org/u/rohit-kumar-j)
#### Post date: [February 7, 2021, 1:04pm UTC](https://discourse.vtk.org/t/error-glsl-1-50-is-not-supported/1444/5 "2021-02-07T13:04:24Z")
HI! I have a similar error: [https://stackoverflow.com/questions/66087438/regarding-glsl-support-for-running-pybullet-in-virtual-box](https://stackoverflow.com/questions/66087438/regarding-glsl-support-for-running-pybullet-in-virtual-box)
Can you help me solve it?
---
### Author:  [@Mikhail\_Yudaev](https://discourse.vtk.org/u/Mikhail_Yudaev)
#### Post date: [January 8, 2023, 9:52am UTC](https://discourse.vtk.org/t/error-glsl-1-50-is-not-supported/1444/6 "2023-01-08T09:52:34Z")
Sorry, gentlemen, but it looks as if this doesn’t work for me. I’m still getting the same error report
> vtkShaderProgram.cxx:438 ERR| vtkShaderProgram (0x55586f825990): 0:1(10): error: GLSL 1.50 is not supported. Supported versions are: 1.00 ES
trying to compile the following test example
[https://kitware.github.io/vtk-examples/site/Python/GeometricObjects/CylinderExample/](https://kitware.github.io/vtk-examples/site/Python/GeometricObjects/CylinderExample/)
I’m on Debian
> 5.10.0-20-amd64 #1 SMP Debian 5.10.158-2 (2022-12-13) x86\_64 GNU/Linux
> glxinfo | grep OpenGL
gives
> Mesa 20.3.5 implementation error: Invalid GLSL version in shading\_language\_version()
> Please report at [Issues · Mesa / mesa · GitLab](https://gitlab.freedesktop.org/mesa/mesa/-/issues)
> OpenGL vendor string: Intel Open Source Technology Center
> OpenGL renderer string: Mesa DRI Intel(R) HD Graphics (ILK)
> OpenGL core profile version string: 3.2 (Core Profile) Mesa 20.3.5
> OpenGL core profile shading language version string: (null)
> OpenGL core profile context flags: (none)
> OpenGL core profile profile mask: core profile
> OpenGL core profile extensions:
> Mesa 20.3.5 implementation error: Invalid GLSL version in shading\_language\_version()
> Please report at [Issues · Mesa / mesa · GitLab](https://gitlab.freedesktop.org/mesa/mesa/-/issues)
> OpenGL version string: 3.2 (Compatibility Profile) Mesa 20.3.5
> OpenGL shading language version string: (null)
> OpenGL context flags: (none)
> OpenGL profile mask: compatibility profile
> OpenGL extensions:
> OpenGL ES profile version string: OpenGL ES 2.0 Mesa 20.3.5
> OpenGL ES profile shading language version string: OpenGL ES GLSL ES 1.0.16
> OpenGL ES profile extensions: