# Motion Parallax versus Depth, 2D (Visual Depth Perception 12)

Motion Parallax versus Depth, 2D (Visual Depth Perception 12)

This Demonstration lets you move the relative distance between and and uses the formulas below to find the fixate distance and pursuit rate , keeping the motion .

0

1

f

dα/dt

dθ/dt=1°

The program computes the binocular disparity of a fixed observer at the position. Notice that .

t=0

B.D.≈dθ/dt