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Old 28th February 2020, 08:58 AM   #4
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Join Date: Jun 2003
Posts: 4,451
Default Re: some nice to haves

All surfaces have normals that are automatically calculated - it's not possible to not have normals. What you may be seeing is 2 vertex polygons, or other odd surfaces interfering with the normal calculations. Odd stuff should appear as red or cyan lines.

Probably best to use the menu Edit->Select-surfaces and then delete surfaces that you don't want.
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