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Making Wheels Move
HI
I watched a youtube tutorial making cars wheels move using iExpression. I tried to find this effect in AE CS6 – with no luck. The youtube video did not show where to get iExpressions.
Can anyone help, or suggest how I can make wheels move. I have a photoshop pic of a car – car on one layer and front and back wheels on two other layers. The psd file is in AE (imported as separate layers) and I have parented them and can move them like I need to, but I can’t figure out how to make the wheels move (or spin) so they look like they are moving.
Thanks in advance for your assistance.
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1 Reply
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You can get iExpressions from aescripts.
For 2D linear motion, you can use an expression like this for rotation of the wheel:
diam = width;
p1 = toComp(anchorPoint,0);
p2 = toComp(anchorPoint);
dist = length(p1,p2);
360*dist/(Math.PI*diam)You may need to adjust the wheel diameter value (1st line). The expression only works once you have animated the movement of the car.
Dan
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