I have an image from a µCT I would like to render with paraview 5.9. To do that, I took the following Steps: Load the .xmf image in paraview (the image is binary and contains only voxels with 0 or 1) use the Threshold Filter with min=0.5 max=1 to only show voxels with a value >0 Select “Surface” a…

Hi @reox , Does that disapear if you increase the number of Pixels to a high number, eg 100 ? FYI @Dave_DeMarle @timothee.chabat

You mean “samples per pixel” in the render settings? Or the size of the screenshot? If I create the screenshot, the “native” size is 1070x829. If I use that, I do not get the lines, but with transparent background I get the transparent pixels in the image. Using a screenshot size of 100x100 pixel a…

okay, no, unfortunately that seems to not change it. I tried with 500 and there is no difference. What makes a difference is, if I enter some arbitrary resolution or if I use the x2 button. It seems like, resolutions which are a multiple of the native one, work better. But there are still faint lin…

that’s not the first time the “Save screenshot” feature gives this kind of artefacts … we should really start to track them down because these are recurrently appearing on the discourse. I’ll try to see if i can reproduce the issue today on the PV5.11rc1

ParaView

Artifacts when saving screenshot with transparent background and high resolution with enabled ray tracing

ParaView Support