Image says a thousand words (i think)

Inside game client application (its a dark map).


Inside editor (play mode)


How/why does the boxed painting happen ?, it only happens rarely, but it would be nice to know why so i can avoid it

Once it happens, its hard to get rid of.

maybe you have too much materials at this location?
please check "view\show number of materials" if its red then its the case.
well if it is or not you can just apply a little more material which is already there (you can get the material at a location using LMB - not RMB)

Thanks.

How many is max texture layers ?

And is it pr triangle, pr quad or pr heightmap ?

max = 3 materials per triangle

Esenthel Wrote:max = 3 materials per triangle

ahh, that explains a bit

When a triangle has 1 texture, and you put another one on over it (completely) does it overwrite the other (first) material ?

if completely then yes.
you see how much a triangle has materials by the "view\heightmap number of materials"