Why camera in 3D and not in 3D

I have a lot of problem with 3D Graphics in OPENGL.Why the concept of camera highlighted in 3D not in 2D?

[mikael_aronsson]

Hi !

Because the "camera" is three dimensional, it has position and direction.

Mikael

[HalcyonBlaze]

Hey shoyab,

In OpenGL, a camera is definetely a 3D concept. It can be moved around anywhere in the 3D space as well as rotated about any of the three axes.

- Halcyon

[ghettotek]

there is no such thing a camera in 2D. i think its more of a "view" in 2D than it is a camera.