So I set up the map size exactly the same as shown in onkolsam's tutorial and i placed objects, slines etc outside of the playable area, but when I go test play the map, its just black there. Can't see a thing. Any ideas?
You have to increase the size of the soft unplayable area which you have already painted in.
It's good to have enough of this soft unplayable area to cover the view if the game camera is moved against the border at default height & angle.
You can test this in the editor by going "View -> Snap Camera On Playable Area"
yo. use the tool thats just right of the TER tool, the icon looks like a dotted line square thing. set the value to 50 and paint a 32m edge around your map. This 32m wide border will be the your true map boundary. The only units that will go there will be units that are initially entering the map.
I see you have the boundary drawn out using the dotted line marker spline, now just use the actual tool to mark it up.
thx for the help guys, I found the error. As you can see on this pic, the soft playable area is bigger on the north side of the map than on the south side(minimap), which makes you not able to see the unplayble area unless you change the camera angle.
With the soft unplayable area set to 32m you can slightly see the unplayable area, which im not used to from relic maps, so it cought my eye
(No offence to onclesam, awesome tutorials!)