Bottom of my torus has awful surface quality

I am relatively new to Blender so please excuse me if this is rather amateur!

The bottom of my torus has poor surface quality, I have scaled the vertices down for a smaller (variable) tubular radius all the way around the torus and at the bottom the surface quality is awful, with inaccurate shading. Any ideas as to what is wrong and/or how I could fix this?

Thanks, itsanate

  • 3
    $\begingroup$ It could be due to a few vertices that are connected inside the model and creating weird faces. or some flipped normals. An explanation for normals here $\endgroup$
    – Leo Jebran
    Commented Jan 27, 2020 at 10:40
  • 2
    $\begingroup$ On a different note.. is that a DB10 steering wheel? :) $\endgroup$ Commented Jan 27, 2020 at 10:52
  • 1
    $\begingroup$ Yes it is, ᴊᴀᴄʜʏᴍ ᴍɪᴄʜᴀʟ :) $\endgroup$
    – itsanate
    Commented Jan 27, 2020 at 12:18

1 Answer 1


These look like inverted faces.

Check your Face Orientation through the Overlay menu.
They should all be pointing outwards (blue color).

You can recalculate them through:
Mesh > Normals > Recalculate Outside

enter image description here


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