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Link X-Scale to animated Y-Position
Hi there,
i have animated an object in 3D space only Y-Position with an expression. So it goes up and down. On a different layer, that is the shadow of the object, i’m looking for an expression that takes the Y-value and makes an even X-scaling. So the shadow gets an even width while the first object is moving up and down.
Hope u know what i mean.
Here’s the expression for the y-position.-52+Math.sin(time*effect("FREQUENCY")("Slider"))*effect("AMPLITUDE")("Slider") -
2 Replies
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Add this expression to your shadow layer
I put in some arbitrary values here. Change those and also make sure to change the “MovingObject” to the name of the layer.
ypos=thisComp.layer("MovingObject").transform.position[1];startY = 500;
endY = 560;
startScale = [140,100];
endScale = [100,100];
linear(ypos,startY,endY,startScale,endScale);“|_ (°_0) _|”
Sincerely,
George
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Thanks George! This is exactly what I needed 😀 I animated a bouncing thing in Newton and needed to animate the shadow’s scale according to hte bouncing Y position.
Jason Jantzen
vimeo.com/jasonj
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