Hello I'm new here and hope someone can help me.
So I have this quad and I need it to be perfectly flat. I discovered the addon LoopTools and using it to flatten ("best fit") works pretty great.
The problem: One vertex point has to keep it's exact position. Only the other 3 verticies should change their position to make the whole shape flat. How do I do that? Can I lock the position of one point?
Hiding doesn't seem to work because for the whole shape to become flat the point needs to be considered.
(Sorry, english isn't my native language. I hope it's not confusing!)