Types of Projection

Learn about the different types of projections!

parallel 1

parallel lines remain parallel after projection

parallel 2

COP is infinitely far from the projection plane

parallel examples

orthographic, axonometric, oblique

perspective 1

parallel lines may not remain parallel after projection

perspective 2

COP is located at a finite distance from the projection plane

perspective examples

one point, two point, three point

how we align camera with world axes 1

we position objects relative to each other in some world coordinates

how we align camera with world axes 2

we position a camera freely in the same coordinates

how we align camera with world axes 3

we point the camera in some direction

camera parameters 1

center of projection

camera parameters 2

direction of projection

camera parameters 3

location and orientation of the image plane

positioning the camera option 1

move the camera in world coordinates (camera matrix)

positioning the camera option 2

move the world in camera coordinates (view matrix)

how are the view matrix and camera matrix related?

m view = m -1 camera