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auto-orient layer towards another layer
I have two layers. I would like layer one to rotate towards layer two no matter where layer two goes on screen without any other parameters changing. In other words I would like to link the rotation of one layer to the position of another layer in Comp Space. Any ideas on how to do this? Thanks.
Dan Fredley
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4 Replies
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I did some research on how to find an angle between two points. This works well.
radiansToDegrees(Math.atan2(transform.position[1]-thisComp.layer("Shape Layer 1").transform.position[1], transform.position[0]-thisComp.layer("Shape Layer 1").transform.position[0]))Dan Fredley
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Or as Dan Ebberts wrote in a previous post:
L1 = thisComp.layer("Layer 1");
L2 = thisComp.layer("Layer 2");
p1 = L1.toWorld(L1.anchorPoint);
p2 = L2.toWorld(L2.anchorPoint);
delta = p2 - p1;
radiansToDegrees(Math.atan2(delta[1],delta[0]));Dan Fredley
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if you happen to be using 3d layers, this would also work (in the orientation property). it will orient the layer so that the z-axis will always point towards the target layer.
target=thisComp.layer("Layer 1");
lookAt(target.position, position)Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW -
Good to know. Thanks!
Dan Fredley
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