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Dear Fellow Scholars, this is Two Minute Papers with Kroly Zsolnai-Fehr. This paper is about creating high-quality physics simulations and is, in my opinion, one of the gems very few people know about. In these physical simulations, we have objects that undergo a lot of tormenting, for instance they have to endure all kinds of deformations, rotations, and of course, being pushed around. A subset of these simulation techniques requires us to be able to look at these deformations and forget about anything they do other than the rotational part. Dont push it, dont squish it, just take the rotational part. Here, the full deformation transform is shown with red, and extracted rotational part is shown by the green indicators here. This problem is not particularly hard and has been studied for decades, so we have excellent solutions to this, for instance, techniques that we refer to as polar decomposition, singular value decomposition, and more. By the way, in our earlier project together
