The ending was unexpected but great haha. I'm curious if the algo is fast enough for real time or if it's only for renders.
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Yeah, likewise. It definitely looks like it's formulated for optimizing paths rather than, say, simulating real-time physics, so I'm guessing not yet. From a quick scan of the paper, I didn't see anything on the complexity (O(N logN) or O(N^2) or whatever), but there were some timings:
> Figures 11 [clasped hands] and 15 [underwear model] each took first 10 minutes to find a coarse trajectory, then 5 and 2-3 minutes, respectively, to refine [to 60 fps].