Align shape with vector

@jag wrote:

Hi there, I have a scene that looks like this:

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Screen Shot 2015-06-12 at 8.40.04 PM (2).png1920x1080 444 KB

The brown arrows are vectors representing the up direction of each of the mesh vertices (ofVec3fs) that the blocks are "planted" in. How do I calculate a rotation for my blocks so that they align with the up vectors?

Thanks!

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