Difference Between Parallel and Perspective Projection in Computer Graphics
Contents
Parallel and Perspective Projection Comparison
 Process of converting threedimensional coordinates into the twodimensional scene is known as projection.
 There are two projection methods namely.
 Parallel Projection.
 Perspective Projection.
 The Key Difference between Parallel and Perspective Projection is that Parallel projection represents the object in a different way like a telescope. Perspective projection represents the object in three dimensional way.
Comparison Chart
Parallel Projection  Perspective Projection  

1  Parallel Projection represents any given object in a different way like a telescope.  Perspective Projection represents any given object in a threedimensional manner. 
2  In Parallel Projection Centre Of Projection is located at infinite.  In Perspective Projection Centre Of Projection is located at a finite point in 3 spaces. 
3  Give an accurate view of an object.  Can not give an accurate view of the object. 
4  Projection lines are parallel to each other in Parallel Projection.  Projection lines are not parallel to each other in Perspective Projection. 
5  A projector in parallel projection is parallel.  A projector in perspective projection is not parallel. 
6  Parallel projection divided into Two type

Perspective Projection divided into Three type

7  Parallel Projection does not generate a realistic view.  Perspective Projection generates a realistic view. 
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