Dear Sketchup Experts,
I need support how to align face oriantation across the entrie drawing. The automatic face reverse extension doesn’t work in Sketchup 2026. The option right click + Orient faces works only for connected faces. There are just too many face in the drawing to reverse them manually. Any ideas are very welcome.
Best Marcel
I
Is the model correctly created using groups and components? Or is it just raw geometry?
at this stage raw geometry. Need to fix the face oriantation first before I create groups and components.
[quote=“Cotopaxi, post:1, topic:350433”] The option right click + Orient faces works only for connected faces
[/quote]
It has always been like that..
What extension do you mean?
Reversed faces like that are common when your order of operations is wrong. There are also a number of coplanar edges which need to be cleaned up and at least a couple of edges that are softened when they shouldn’t be. Did this start with edges from an imported CAD file?
Fixing the reversed faces is certainly possible but it’s a simple matter to avoid the reversed faces in the first place with the correct workflow. Part of that involves making groups and components as you go.
In SU 2026, I tested Didier’s extension - Automatic Face Reverser, and it works well.
Extension name is:
Didier Bur: Automatic Face Reverser v1.0x
Just checked with simple boxes like in your move. Thnaks for this. It works well but not in a more complex drawing.
You could try asking Claude.ai to build you an extension for this- perhaps it can find the inside-oriented faces and reverse them. Worth a try, then post it here if you get good results? I’ve done this with extensions I’ve wanted for 20 years! 
For example…
ac_align_rotate_z.rbz (5.6 KB)
You can also test FrdoTools::AutoReverseFaces.
It’s a good thing you reminded me about the extension, Fredo. Thanks! I tested it, and it manages to solve the problem for the most part.
The even better part is that it works even if each of the buildings is a group, and all the groups together form a group.
