Making isolated rooms is a start but it will not get us creating complex buildings to immerse our players. We shall use the map from the previous tutorial and add more rooms to it. If you were unable to create the map it is availiable here. Extract the rar archive and place its contents in [game directory]/UOTools/map_source.
The new room will be situated to the left of the one we already have so create a new brush there, raise the roof to the same height as the origional room and hollow it out. Paint the walls, floor and cieling: keep the floor and ceiling the same but change the wallpaper for the blue one. (To see the textures already in use press 'U') This is what you should end up with, I have placed the camera in the middle of the wall to make it look as though there is no wall, even though there is, as you can see on the 2D view.
We now need a doorway connecting the two rooms so our CoD player can move inbetween the rooms. It is always good to have a door frame around our door so make a brush that passes through the wall completely and is at least 32 wide so our player can squeeze through.
This brush does not allow our player through, in fact there is now more in his way. To make a hole we need to 'subtract' the door frame from the wall and then 'subtract' a doorway from the door frame. The 'CSG Subtract' tool will do this for us in most cases.
The CSG Subtract Tool
Note: Never use CSG Subtract with more than one brush selected.
Note: I always save before doing a CSG Subtract, it can very often crash Radiant if it finds the objects you are wanting to cut too complicated.
Once you have subtracted the door frame from the wall you will need to make an opening for players to walk through. To do this, clone the door frame (select it and press the spacebar) and then move it back onto the origonal door frame (when cloning the new brush is moved one grid unit down and one grid unit to the right). Then push in the top and sides so that the doorway has a one unit indent from the door frame.
Press the CSG Subtract button to make an opening and then delete the inner brush by pressing backspace. Your door is finished but if you look at the floor you will see some wall textures flashing around the threshold. Try selecting the bits of floor and deleting them. It is likely that you will select the larger floor surface that you want to keep: in this case, just select the piece of wall again so that you have both selected and then deselect the larger floor (by shift clicking). Delete the wall sections on both sides so that you have one continuous floor texture through both rooms.
Now add another small room coming off the main room and create a similar doorway connecting them. Paint the new room with some textures suitable for a kitchen as that is what it is intended to be. In a kitchen the floor is unlikely to be wooden so we will have a texture change in the doorway. This can look messy so placing a threshold will tidy things up.
The house is now ready for some furniture and lights, which will be added in the next section.
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