Pretty strange that I get this glass result. I am making a a wine bottle so nothing too complicated. I think I will do my model again, but I would like to understand what makes the model being this unrealistic? I tried to play with a lot of settings, I followed advanced tutorials but even then nothing made sense. Here is the file yo ucan download : https://pasteall.org/blend/a9482823b5024548ae168368464bef96

enter image description here

  • $\begingroup$ Looks like bad geometry to me. Try to clean it up in the first place, by removing any duplicated vertices -> Edit Mode > Mesh > Clean Up > Merge by Distance and make sure your normals are pointing in the right direction. $\endgroup$ – brockmann Feb 18 at 9:07
  • $\begingroup$ It helped a bit but not completely. It seems that my model is a complete mess with the normals. So I did it again. Thanks for the support ! $\endgroup$ – Dervieux Benoît Feb 18 at 9:42
  • $\begingroup$ That looks like overlapping faces, probably duplicated or so close together that they create z-fighting. $\endgroup$ – susu Feb 18 at 15:19
  • $\begingroup$ Thank you so much ! It worked ! $\endgroup$ – Dervieux Benoît Feb 18 at 16:35

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