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transform rotations of one object to another animating object normal


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I have run into an issue where I need to attach spheres to individual points on an animated surface. I can get the spheres to constrain to an individual point using a point expression in a transform node. However the spheres will not rotate as if fixed in place. The axis maintains its world position. How would I get the spheres constrained to the animated surface to rotate so Y (for example) is rotating along with the normal direction.


Any help would be appreciated.




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Unfortunate a copy sop will not work. Each sphere is an individual element and must be animated by hand separately. Additionally, where would i be putting the up attribute and how would I implement it. There are multiple points to consider on the animated mesh.

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