Expression to limit tracking data

Hello

Y at - it an expression to limit the scope of follow-up data.  In other words, I would take follow-up data and reduce the size, so if I followed my hand and he moves 10 inches upwards or downwards, I can apply to another and move only 3 or 4 inches.

You can change all the data, also by something like tracking data

var x = value [0];

var y = value [1];

[x * 0.5, y * 0.5]

(use any scale to use instead of 0.5)

However, this scales always data around the point [0,0], which is not always what you need.

If you use link Simple 2D iExpression, scaling can be done with a lot more options and without any programming at all.

See this tutorial for more details.

Tags: After Effects

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