Hi! I needed to properly align one object to another so I used a combination of matchsize and topotransfer to do this. Matchsize to get the overall position and topotransfer to do a rigid align, that will get me the proper rotation. Not the fastest solution but the only solution I could figure out. The thing is that my object has animated deformation baked into the object. Topotransfer only does the rigid alignment for one frame. So I need to copy this rigid alignment to all of my frames. However I dont see an option to export an xform attribute. I dont want to recalculate the rigid alignment perframe as that would take a long time, and possibly change from frame to frame. Anybody have any ideas? thanks!

You can use Extract Transform SOP to get rigid transform delta between the geo at the frame you aligned stuff to and current frame for example