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Motion tracking data and slider

COW Forums : Adobe After Effects Expressions

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Michal Lukaszyk
Motion tracking data and slider
on Feb 10, 2015 at 1:38:53 pm

I have a problem with expression, slider control and scaling parameter.
First I made the motion tracking on my movie and apply this data on the null.
and now I want to control scale parameter using expression and sider.
How to do this? My tracking data changes between 94% to 105%. How to write expression ... when the slider parameter is 0 i have 100% scale parameter (and tracking value "don't working") and if i move it up or down it increase or decrease tracking value and when slider value is on 1 it give me true tracking value. uffff

Thanks for help

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