TIL (from http://tom94.net , who is not on twitter afaik) if you interpolate camera matrices in log space, the center of rotation is preserved. this is awesome for smoothing camera paths and I cant believe I didnt do this before. may this tweet make you less dumb than me
But anyway, as you can see from the blue arc, expmaps are really pretty janky. Depending on what you're doing, that may not matter, but never assume it's doing the proper torque-minimal path, because it generally doesn't!
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thankyou for the detailed exposition! yeah i was pointed at your (hilarious, on point) rant with charles and jonathan and it’s linked in other threads… cant believe i missed this slice of graphics history first time round!
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Supposedly there is another slice that I was too busy with other projects to be a part of, but, I got a bunch of emails about it. I believe some grad students later proved that exponential map also isn't constant speed. But don't quote me on that.
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