Frames per second, or FPS, is an important factor in a gamer's response time in any first-person shooter game, so if you find yourself playing "Doom 3" and getting killed over and over, don't blame your lack of skill, just learn how do I show the FPS in Doom 3.
Moving images in a video game, like those in "Doom 3," borrow a technique that has been used by motion pictures for almost a century. When multiple still frames are viewed in rapid succession, the human brain fills in the gaps and perceives the images in the frames as if they were moving. The faster these images are displayed, the smoother the motion looks on the screen, and for games like "Doom 3," this smoothness of motion can be the difference between winning and losing. Your ideal FPS for "Doom 3" should be at least 30 FPS, although higher rates will look even smoother. "Doom 3" includes a FPS meter that you can view on the screen while you play, but you need to know the right code to bring it up.
- Launch your "Doom 3" game and start playing. You need to be in the game to bring up the FPS meter.
- Press the tilde key to launch the console where you can type in commands. You will see a list of text, and a line with a blinking cursor, on your screen.
- Type in "com_showfps 1" into the console and press enter. Press the tilde key again to exit the console. You will now see the FPS in the top-right corner of your screen.
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