Parallax

:This article is about parallax, the perspective shift. For the DC comic book character see Parallax (comics).

Introduction

Parallax is often thought of as the "apparent motion" of an object against a distant background because of a perspective shift, as seen in Figure 1. When viewed from Viewpoint A, the object appears to be in front of the blue square. When the viewpoint is changed to Viewpoint B, the object appears to have moved to in front of the red square.

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