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Position to null position
Hey All,
Is there an easier way to do this… I have a layer and a null, the null is at posx,y 360, 288 and then nulls position is at 260, 188. And I want to put an expression on the layers position so it STAYs in its original position but moves when the null does.. I would do this like this…
x=thiscomplayer (“null1”)transform.position[0] – 100;
y=thiscomplayer (“null1”)transform.position[1]null1.posy – 100;
[x,y]What I want to know is there an easier way to do this.. it’s fine when there is only a 100 difference, as I can work that out nice and easy.. however it gets more complicated when it is 953.2.
Is there something like value I could use or something that would work out the difference..
it’s not the end of the world.. just hoping to better myself !!
thanks
Alex
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3 Replies
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Something like this should work:
value + thisComp.layer (“Null 1”).transform.position – thisComp.layer (“Null 1”).transform.position.valueAtTime(0);
You won’t notice anything until you animate the null’s position.
Dan
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thanks Dan,
much appreciated .. just so I understand correctly
we are adding the current value to the null, then taking the value at our current time and subtracting again to get the correct position.
cheers
Alex
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To the pre-expression slave layer’s position, you’re adding how far the null has moved since frame 0.
Dan
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