In a 3D workspace, everything is seen from the viewpoint of a camera. If you want to export your project specifically from a camera view, you must add a scene camera. When you add a scene camera to a project, additional reference cameras become available to help you see your composition from various angles, such as top, bottom, left, and right. Scene cameras are used for rendering output when you export your project; what you see through the scene camera represents your final render. Reference cameras are not used for rendering.
Scene cameras
There are two types of scene cameras to choose from in the Camera Inspector:
Framing: Sets the camera origin (or anchor point) at the focal plane (a plane perpendicular to the camera’s local Z axis—in other words, perpendicular to your line of sight as you look at the Canvas). The position of a Framing camera’s origin makes it useful for orbiting moves—rotating the camera causes it to orbit.
Viewpoint: Sets the camera origin (or anchor point) at the center of projection, “inside” the virtual camera. Rotating a Viewpoint camera causes it to pivot—also known as panning (horizontal) or tilting (vertical).
You set the scene camera type (Framing or Viewpoint) in the Camera Inspector. Scene cameras appear in the Layers list and Canvas (as wireframe objects that you can move and rotate to change your point of view).
Reference cameras
There are two types of views provided by the reference cameras:
Orthogonal: Views the scene by looking straight down one of the world axes: X, Y, or Z. The Front and Back cameras look straight down the Z axis. The Top and Bottom cameras look straight down the Y axis. The Left and Right cameras look straight down the X axis. Orthogonal views do not show perspective.
Perspective: Views the scene with perspective distortion, the way a real-world camera would. (Scene cameras also view the scene in perspective.)
