How to use a blue ball as a slider
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 Hello guys, i'm in the process of making a project for university using isadora, everything is going smoothly exept for figuring out how to use a blue ball as a slider controller. I would like to be able to change the value of something between 0 to 100 moving a ball up and down, like this guy does in this video: ( i think it has to do with the eyes++ and blob decoder actors, but i really have no clue where to start p ) )
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 This would be a good starting point about Eyes++ and color tracking. https://vjskulpture.wordpress.... Best Michel 
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 Nice! ty man  
