I want to make a good render of this tube and i use an STL file for the model. As you can see the reflections on the metal material look weird and very squared. Currently i use the EdgeSplit and Subdivision modifier to make it better. It helps a bit but i do not get it to look better than the picture below. Does one of you have a suggestion/solution how i can make these renders look more natural?


enter image description here

  • $\begingroup$ Hello, if Etienne's answer doesn't help, please share your file $\endgroup$
    – moonboots
    Commented May 22 at 12:33
  • $\begingroup$ Hi moonboots, I do not see where I can enter a blender file $\endgroup$ Commented Jun 7 at 14:28
  • $\begingroup$ you can use blend-exchange.com read the instructions $\endgroup$
    – moonboots
    Commented Jun 7 at 14:52
  • $\begingroup$ Thank you, i have uploaded the file $\endgroup$ Commented Jun 10 at 10:21

1 Answer 1


Have you tried to shade smooth the mesh ? (when the mesh is selected in object mode,right click and shade smooth or shade smooth by angle)

Hope this helps,


  • $\begingroup$ Yes i have applied the shadesmooth/autosmooth, still these reflections are there $\endgroup$ Commented Jun 7 at 14:27

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