Have you done the trick by placing a coin in front of your eyes so that you can block out the moon? The farther objects seem smaller than they are, and the moon seems of the same size as the coin. Or imagine railway tracks — although they are parallel, our perception is deceived, and we see lines converging in the distance. That's basically how the perspective projection works.

However, sometimes, struggling with some problem, we must look at it from a different perspective.^[1] The same thing happens in the 3D world. Distorting the viewpoint position and the angle, 3D artists manipulate how we perceive the object's shape, size, or distance from the camera.

Perspective distortion helps create unusual, fascinating scenes or brings a different mood.