Befores & Afters

beforesandafters.com · Group blog · on HN since 2019

Befores & Afters covers visual effects and animation in film, including behind-the-scenes breakdowns of how specific shots and movies were made.

What HN saysHN links it for history of film VFX techniques, such as the CG in Escape From New York and the bullet-time camera rig.
18HN people shared it
3linked it in comments
17stories submitted
28story points
11 months agolast shared
2019people per year2026

Most-shared posts

  1. 1
    De-aging De Niro – befores and afters
    2 people · 4 points · first shared 2019 · discussion on HN
  2. 2
    The Tech of 'Terminator 2'
    2 people · 3 points · first shared 2019 · discussion on HN
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    How the painterly style of The Wild Robot was realized
    1 people · 3 points · first shared 2025 · discussion on HN
  5. 5
    The 'Apollo 13' effects you might not know about
    1 people · 2 points · first shared 2020 · discussion on HN
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    Retro RenderMan: shading food for 'Ratatouille' (2020)
    1 people · 2 points · first shared 2025 · discussion on HN
  8. 8
    Viewpaint: ILM’s secret weapon on ‘Jurassic Park’
    1 people · 2 points · first shared 2020 · discussion on HN
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  10. 10
    Retro RenderMan: shading on ‘Finding Nemo’ (2020)
    1 people · 2 points · first shared 2022 · discussion on HN
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    Before and After
    1 people · 1 points · first shared 2022 · discussion on HN
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    The software behind Across the Spider-Verse
    1 people · 1 points · first shared 2023 · 1 comments on HN
  15. 15
    VFX in Nope (2022)
    1 people · 1 points · first shared 2024 · discussion on HN

What HN people wrote when they linked it

exodust · 2022-06-27
The actors would need to learn the new characters and lines? That takes time they rehearse a lot. Or are you suggesting the same characters are used? But then you'd have yourself a regular series with different adventures each episode. Film industry does already use props over and over. A great one that comes to mind is the scale model of the city that was bought and sold from studio to studio, movie to movie: https://beforesandafters.com/2019/03/26/a-visual-journey-inside-the-mi…
dazzawazza · 2022-07-11
The CG from Escape From New York was done in a similar way. https://beforesandafters.com/2021/07/12/escape-from-new-york-at-40-how…
dragontamer · 2022-01-13
That's definitely not the optical-flow slowdown trick I'm talking about. That spiderman slow-motion was some combination of 3d effects and maybe real-life cameras ("Matrix" style: https://beforesandafters.com/2021/07/15/vfx-artifacts-the-bullet-time-… https://www.youtube.com/watch?v=FCfdyroV7kc This scene from 300 is very clearly just a wide-angle shot (initially), with someone playing with the Optical Flow timewarp effect (sliding it up and down). Its incredibly cheap. See this demo in Premier Pro: https://www.youtube.com/watch?v=ErOc_LkZaIk ---------- That's the thing. 300's main innovation was using _cheap_ effects. Optical flow time-warp didn't appear on Premier for another few years, but the algorithm was popular and was just a custom filter / program that was getting passed around at that time.

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