Hi Andrei,

> Michael, is it possible to some how mark normal directions?

There isn't really any way set up to do it currently, it is something I want to add in the future though probably with some kind of display mode option.


> May be some script that will color surfaces with 2 different colors to show direction?

It needs stuff implemented for it deep in the display mechanism, it's not really possible for it to be done by script only.

- Michael