I have a point cache sequence where each frame is (subjectively) similar in geometry, though not in topology. I'm looking for a way to 'slomo' the sequence, similar to the way optical flow would be used on images.

Would converting to SDF then using VDB Morph SDF be an option?

I would need to be able to bake then morph / blend between colour too

I had a bit of a look at this a while ago - see attached if its any help
Go to the attribute transfer node and tweak the Blend Width between 0 and 1 with the view flag on the convert VDB to see how it looks.

Hi Hatchery

Thanks for this


An issue with this is it's not necessarily possible to achieve the full 'lerp' to the other geo. Did you try with more complex geometries?

Another issue is the lerp should happen over the whole geo simultaneously, not just when a distance threshold has been exceeded.