The Coefficient of Clean pt.10
Friday, February 25, 2011 at 8:14PM
Richard Terrell (KirbyKid) in Clean Design

And what about 3D games! Displaying 3D objects or 3D environments on a 2D screen is inherently limited. Aside from splitting the screen and viewing a single object from 2+ different camera angles, there will always be a side of a 3D object that is obscured from the view of a single camera. Place a single camera in a 3D environment and there's no practical way a player can view everything. Of course, just because a game uses 3D graphics/space, doesn't mean important feedback elements will automatically be obscured. But it's a near guarantee. So if 3D doesn't automatically create cluttered games, the question is when does it and how?  

 

What's on the other side of the globe? One can only guess.

 

Consider 3D Camera Control

For real time 3D games like Super Mario 64 players are given control over the camera. Players can spin it left, right, up, down, zoom in over the shoulder, or lock it in place. It's important to understand that the analog control of Mario's movements are relative to the camera view. So camera control is a big deal. Considering the cleanness of the mechanics, being able to control the camera and Mario simultaneously affects the simultaneity of all the mechanics. 

If you haven't completely mastered 3D analog control and 3D camera control, you probably play Super Mario 64 or other 3D platformers the same way, by lining up the camera behind or to the side of the character and taking things one jump at a time. This is a way of simplifying the 3D space into a 2D one, an idea which I'll expound upon in an upcoming article. The reason players simplify the game this way is because understanding true 3D space and interpreting this space through a 2D screen is quite difficult. Judging any distance along the z-axis depth in a 3D space relative to the camera view is subject to ba3D (read more about it here). Without tight feedback design, games can greatly suffer from ba3D for a very emergent type of clutter. Notice how many games compensate in this area by featuring a circular shadow to indicate an airborne character's position along the z-axis. 

 

Consider Obscuring Elements

Yo, dog, I'm trying to play some Brawl!

Aside from ba3D, 3D camera design is generally plagued by all kinds of obscuring emergent issues. A odd piece of level geometry can cover up the camera view. Enemies or other characters can move in front of the camera (see Nintendog above). And it's possible for a camera to move inside solid objects. It helps when the system intelligently renders objects transparent so that if they get in the way, the player isn't completely blinded. Still, there seems to be no substitute for meticulously tweaked camera design. Super Mario Galaxy 1 & 2 or The Legend of Zelda: Twilight Princess are two games with very complex 3D environments and very polished camera design..  

 

However you play, you must understand that real-time 3D games will most likely suffer from some combination of these cluttered elements; simultaneity of controls (camera and gameplay) or ba3D/other obscuring camera issues. If there is no camera control there's a good chance that the developers have enough control over the presentation to avoid these issues. Rail shooters like The House of The Dead 2, The Typing of the Dead, Resident Evil Chronicles, Sin and Punishment, and Star Fox 64 have much more potential to be clean games than Super Mario 64.  

 

Consider Camera Control as a Mechanic

For FPSs the camera control is built into player aiming. In the same way that the camera is indirectly controlled by Mario's hoizontal movement in Super Mario Brothers, players control the camera view by aiming in an FPS. Or is it direct camera control? Is camer control linked with aiming, are are they one in the same? Can they be separated? If so, what does that matter when they're designed as one? Is camera control even a gameplay mechanic?

The following is a dialog between me and myself

 

Getting to the bottom of terms and terminology is harder that it looks. Examining the cleanness of 3D games continues in part 11. 

Article originally appeared on Critical-Gaming Network (http://critical-gaming.com/).
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