What is a 3D Camera?
Once a 3D scene is created the artist needs to choose
where to display it from. The process is just like setting
up a real camera, just more flexible.
There are various controls to a 3D camera that simulate
a real one, such as focal length and depth of field. The
positioning of the camera is also limitless as the 3D
artist is not restricted to where he can place a ladder.
A 3D camera can also animated,
not just in location but in it's settings. For example
you could animated the camera to pull away from the subject
over 5 seconds and whilst doing that change the focal length
to reveal more of the scene. Over that period you could
also change the depth of field so as the subject may now
go out of focus while the background comes into focus.
Moves like that would be very complex in real life but
quite simple in 3D.
If you are having 3D Renderings prepared
then you will need to determine where the 3D Camera is
positioned, or your viewpoint to use another term. If you
are getting a 3D animation created then you will have to
determine the camera path.
3D cameras can also be created from real data, which can
be very evident in scenes that incorporate camera
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