From The Other Wiki
: Isometric projection is a form of graphical projection, more specifically, a form of axonometric projection. It is a method of visually representing three-dimensional objects in two dimensions, in which the three coordinate axes appear equally foreshortened and the angles between any two of them are 120 degrees.
In layman's speak, it's a way of faking perspective by squashing the vertical axes, thus forcing perpendicular angles to look wider. Also, close up objects appear the same size as distant objects.
In the days before true 3-D graphics, isometric projection was one of the ways artists suggested depth. Developed and formalized in the 19th century
for technical and architectural drawings, it remains a popular way of creating 3-D-esque graphics in video games, especially for handheld systems.
Of course, in many cases in video games, the projection is not actually isometric in the mathematical sense, because a 26.57° slope is much easier to draw on square pixels than a 30° slope. But that would be nitpicking, so these games are called "isometric" anyway. The term can also refer to the vastly different Trimetric Projection (such as in Fallout
and Fallout 2
or SimCity 4
The weakness of Isometric Geometry is that the same sort of line can be either distance or height, or even both in some cases
. Usually, it's easy to tell; but no proper Penrose staircase
could be built without this concept.
See also Top-Down View
, Side View
and Three-Quarters View
Video game examples:
Massively Multiplayer Online Role-Playing Game
Shoot 'em Up
- Crystal Castles (uses the "trimetric" projection variant)
- Lode Runner 2
- Marvin's Maze (maze game by SNK superficially similar to Pac-Man)
- Pac-Mania, sort of. Only the vertical axes are this, the horizontal ones are straightforward left/right.
- Future Spy (similar to Zaxxon, except it has different controls and a different setting)
- H.A.T.E.: Hostile All Terrain Encounter
- Highway Encounter
- Zaxxon and Super Zaxxon
- Desert Strike (and by extension, the rest of the Strike series)
- Several Comcast commercials feature people driving around in an isometrically projected city/town, most likely in Homage to SimCity 2000.
- M.C. Escher used isometric projection to create many of his iconic Alien Geometries. The same sort of line can be used for height and distance in an Isometric Projection, and so Escher used the same line to represent both — and left which one to the ever-shifting context.
- Habbo Hotel
- Homestuck mainly uses this perspective.
- Japanese DJ Halfby's music videos by Groovisions use isometric projection. See here, for instance.
- The art of pixel art group eBoy.