Smoother animation ≠ Better animation [read pinned comment]
Noodle4 HN recommenders · recommended in 3 months, 2022–2024
explainer · general · 2022–2024 on HN
Animator Noodle explains why frame interpolation does not make animation better, covering timing, easing, smear frames and using the wrong tool for the job. A pinned correction says the video is partly outdated given later AI developments.
HN commenters recommend it in motion-smoothing and interpolation threads as an overview of why interpolation hurts animation.
Up next
13 mo on HNThe Beauty of Bézier Curves
Freya Holmér
16 HN recommender · 2021–2026
10 mo on HNEd Catmull, Pixar: Keep Your Crises Small
Stanford Graduate School of Business
9 HN recommender · 2010–2017
8 mo on HN"Money doesn't interest me" - Ton Roosendaal 2017 Interview
Blender Guru
7 HN recommender · 2018–2025
8 mo on HNDNA animation (2002-2014) by Drew Berry and Etsuko Uno wehi.tv #ScienceArt
WEHImovies
9 HN recommender · 2020–2026
6 mo on HN"NO CGI" is really just INVISIBLE CGI - 1
The Movie Rabbit Hole
6 HN recommender · 2024–2026
5 mo on HNCaptain Disillusion: World's Greatest Blenderer - Live at the Blender Conference 2018
Captain Disillusion
4 HN recommender · 2019–2022
5 mo on HNThe Inner Life of the Cell Animation
XVIVO Scientific Animation
5 HN recommender · 2017–2024
5 mo on HNWorld Building in Blender - Ian Hubert
Blender
4 HN recommender · 2019–2026
4 mo on HNLearn Low Poly Modeling in Blender 2.9 / 2.8
Imphenzia
4 HN recommender · 2020–2025
4 mo on HNHow Prince of Persia Defeated Apple II's Memory Limitations | War Stories | Ars Technica
Ars Technica
5 HN recommender · 2020–2026
4 mo on HNChinese Invisibility Cloak Hoax DESTROYED!!!
Captain Disillusion
4 HN recommender · 2021–2025
3 mo on HNCD / Color
Captain Disillusion
3 HN recommender · 2020–2021
6 comments from Hacker News
A really good video on the subject: ▶ this video The gist is that, for animation, frame interpolation messes with intended timing and can produce incoherent images on interpolated frames and odd frame rate issues for certain kinds of animations. Interpolation can thus cause animations to lose their punch and feel wrong. While interpolation may be nice for live action films, it should still be an option to turn off.
This video is laced with profanity and focused specifically on animation, but give a pretty good overview of why interpolation does not inherently make things look better: ▶ this video
Can't have a conversation about inbetween frames without sharing this[1] Noodle video. Now granted the interpolation there is pretty rigid, and the goal of this dataset will be to train an LLM replicate hand tweening, but I can't help but feel there's going to be a massive uncanny valley. [1] ▶ this video
Counterpoint: this YouTube rant by an animation person called Noodle is a pretty good overview of why frame interpolation sucks. ▶ this video Basically, low FPS can be a stylistic choice, and making up new frames at playback time often completely butchers some of the nuances present in good animation.
I'm usually a big critic of AI, and I remember seeing people complaining years ago about increasing framerates with AI[0], but maybe this could be a good usecase. You do, say, half the cameras, and then some crafty solution to interpolate (filling in the edges with AI, some sort of angle adjust) [0]: ▶ this video
The animator Noodle recently put this video on YouTube that explains why he despises the idea of interpolated video: ▶ this video