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Walls, Floors, & Ceilings

UncommentatedPannen
Explainers
YouTube
3 HN users recommended this explainer3 months2017–2018 score 4
Years with an HN recommendation, 2007–2026

Praised as an engrossing, in-depth look at SM64 mechanics that is surprisingly compelling to watch.

Pannenkoek explains how Super Mario 64 handles wall, floor and ceiling collisions, including triangles, normal vectors, quarter steps and out of bounds. It is a detailed 37-minute technical walkthrough of the game's physics.

“each longer than half an hour (and both of them extremely interesting)” (HN, 2017)

2 strong recommendations · 1 recommendations · Explainers · advanced

3 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@dEnigma Oct 2017 Strongly recommends
on HN thread A Comprehensive Super Mario Bros. Disassembly
That's nothing! He has two videos on walls, floors and ceilings, each longer than half an hour (and both of them extremely interesting) Part 1: [this video] Part 2: [link]
Long, extremely interesting video on walls, floors and ceilings

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

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