pvbach paraview.simple how to make animation or screenshot without GUI

Hi there. I do enjoy paraview simple to automatize some post-processing.
When i make a screenshot or save animation of a renderview with the following line :
SaveAnimation(’/tmp/test.png’, renderView1, ImageResolution=[1222, 627], FrameWindow=[0, len(frames)])

a GUI windows is appearing while the animation or screenshot is generated.

Is there a way to ovoid this ?
Thanks by advance.

I mean a GUI windows like this :

You want to use offscreen rendering.

--use-offscreen-rendering

Thanks a lot. :slight_smile: