UDK tutorial shows how you can take high resolution screenshots in-game for your portfolio or for print.
START YOUR MAP
Launch the game and start one of your maps. Turn off the number of opponnets, goal score and time limit.
Bring up your console by hitting tilde key ~
Remove all the hud elements by typing in 'togglescreenshotmode'. You may need to do this twice.
Bring up the console again and type in 'fly'.
Position your camera where you want to take your screenshot from.
TAKING THE SCREENSHOT
Press Tab key for minimized console. You will see it come up on the bottom of your screen.
Type in 'tiledshot' and press enter.
WHERE IS THE SCREENSHOT?
Navigate to your UDK installation folder.
Default is: C:\UDK\UDK-2010-08\UDKGame\ScreenShots
TAKING HIGHER RES SCREENSHOTS
To take higher res screenshot, simply type in 'tiledshot X'
Example 'tiledshot 4'.