What is going on in this image? Can’t find any double vertices…

[Eirik Guttulsrud]

So, after I added the subsurf this jarring surface transistion happened 😛 I have tried to remove doubles (or merge by distance, as this is Blender 2.8) but get back “0 verticles removed”. Can it be anything else?

[Kaj Suominen]

normals could be reversed on those. select everything in edit mode and do shift-n. if that doesnt fix it, would need to see blend file. also do alt-h in edit mode to unhide everything incase you have hidden some.

[Eirik Guttulsrud]

That was it! Thank you! I didn’t think it could be the normals because I didn’t get that dark shading you usually get with flipped normals…  

[spikeyxxx]

That dark shading is no longer used in 2.8!

You can however turn on Face Orientation in the Overlays; this will show faces with flipped normals in red, also in Object Mode…

[William Miller]

Really?  I don’t like that.  I wish I could immediately see which faces were bad.

[Author]

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