In addition to the tutorials, i'll list a few tips I've learned from using gtkRadiant.
This is crutial to making maps quickly and effeciently. You should be able to
navigate in the 3D window as quickly as you can get around in a level while
playing Wolf. In gtkRadiant, right-click in the 3D window and then you can use the
mouse to turn and look up/down and use the arrow keys to move forward/backwards
and strafe left/right. Also, D and C will move you up and down. Practice! Practice!
Practice! Force yourself to get used to moving around in this window. Being able
to freely move about this window will allow you to see many of the smaller details
and misaligned brushes that are hard to see on the 2D view, but ONLY if you know
how to position the camera correctly. (note: if you're using WolfRadiant, the navigation in
the 3D window doesn't work the same. I find navigation in Wolfrad very difficult and cumbersome
so if you're using WolfRad, good luck!)
Working on 3D project in 2D can be very confusing at first. There is no magic forumla to learning
how to work in the 2D world other than practice. Something I find helpful is to hide
parts of my level that are either above or below the section I'm currently working on. This
will help clear up some of the extra lines. To do this, create a brush that at least touches
the brushes you want to hide, then choose Selection->Select->Select Touching (or Select Inside depending
on how your map is layed out). Then, hit H. That hides everything. You can also manually hide brushes and entities by
selecting them (Shift+LMouse) and pressing H. To unhide everything just press Shift+H.
Pressing the spacebar will clone all selected brushes and entities. So, if you're laying down
a ton of new light entities, just make the first one, then select it, press the spacebar and drag the cloned
light to the new location. Continue this as needed. This is a great way to quicly light a hallway or something.
I use this all the time when making hallways, room borders, boxes, etc. Also, be sure to have the texture lined
up before you create the clone because it also clones the texture. So, if you make a box with the perfect texture,
all cloned boxes will have that same perfect texture!
When working in the 2D top-down window (xy plane), using the Z-Height window is a great time-saver (by default I
think it shows up on on the left side. It is the tall, narrow window). You can use
the window to raise or lower a brush or change a brush's height without having to switch to the Front or
side views (which can be confusing for some people). Just line up your 3D window so you can see the section you
are working in and then by using the Z-Window and watching the 3D window you can adjust the height to where ever
you need without ever leaving the top-down view.
First, pick a default grid size to use while creating your map (I like 8), then stick with it. However, you should
be comfortable with changing the grid as needed. For example, if you're creating a handlrail for a stairway, using
the 8 unit grid would look funny, so switch to 4, make the rail and switch back. There are hotkeys that make this very easy.
(1 = Grid is 1 unit, 2 = Grid is 2 units, 3 = Grid is 4 units, 4 = Grid is 8 units, etc.)
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