Smoother animation ≠ Better animation [read pinned comment]

16.1M views · 5 years ago · essay · evergreen

Noodle, an animation creator, explains why frame interpolation and motion smoothing make animation look worse rather than better. He argues that frame rate and timing are deliberate artistic choices, and that adding generated in-between frames breaks the intended timing and can produce incoherent images.

HN people use it as the go-to explanation of why interpolation, motion smoothing and AI frame boosting harm hand-made animation.

“this YouTube rant by an animation person called Noodle is a pretty good overview of why frame interpolation sucks.”

10 comments from Hacker News

k
@kec2024 · in “Roku update turns on hated motion-smoothing feature, with no off switch”
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
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v
@vgbm2024 · in “Roku update turns on hated motion-smoothing feature, with no off switch”
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.
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z
@zbirkenbuel2024 · in “Sakuga-42M Dataset: Scaling Up Cartoon Research”
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
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n
@nyx2023 · in “Switch off bad TV settings”
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.
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C
@CharlesW2023 · in “Smoother animation ≠ Better animation [video]”
Submitted the video to Hacker News.
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A
@Akronymus2023 · in “Until further notice, think twice before using Google to download software”
Another nice video on the topic: ▶ this video
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M
@MasterScrat2022 · in “AI Upscaling Is Not Remastering”
The linked video is much more interesting and informative: ▶ this video
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i
@internetter2023 · in “There oughta be a bullet time video booth”
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
b
@bcraven2022 · in “FILM: Frame Interpolation for Large Motion”
The animator Noodle recently put this video on YouTube that explains why he despises the idea of interpolated video: ▶ this video
m
@majewsky2021 · in “About 90% of Animators Quit Their Jobs Within 3 Years”
And here's the obligatory rebuttal against such tweening models from an animator: ▶ this video