2D Layer's position moves according to 3D Layer's y-rotation

To tie the edge of a 2D layer to a 3D layer I'd convert a point along the edge of the 3D layer into comp space and apply that to the 2D layer's position, set the 2D layer's anchor point on the edge you want tied to the 3D layer's edge:


l = thisComp.layer("My 3D Layer");
my3dEdgePoint = [0,540,0];
l.toComp(my3dEdgePoint);


Of course this method makes some assumptions and has limitations. Hopefully it foots the bill in your case.

Darby Edelen

AccCKK!!!!!! What if my 3D layer is a child or a grandchild?

Cheers
Roland

Intensive mocha & AE Training in Singapore and Other Dangerous Locations

Imagineer Systems (mocha) Certified Instructor
& Adobe After Effects ACE/ACI (version 7)

I DID! And it works!!! :-D

The 3D Child Layers required more finessing with its Anchor Point. FWIW, when a 3D layer rotates a lot, two 2D solids are required, one for each of its left and right sides. BTW, I'm trying this technique so that I can use these 2D layers in Newton and then use Newton's results with 3D layers.

Thanks Dan!

Cheers
Roland

Intensive mocha & AE Training in Singapore and Other Dangerous Locations

Imagineer Systems (mocha) Certified Instructor
& Adobe After Effects ACE/ACI (version 7)