MCH2022 Curated content

Non-Euclidean Doom: what happens to a game when pi is not 3.14159…

Battery 🔋
Luke Gotszling
We all know that the value of pi is a constant with a particular immutable value. Anyone who has done any graphical programming also knows that visual rendering relies not just on pi but trigonometry more broadly as well as other mathematical techniques. If we look into the source code of the first person shooter Doom we find that the value of pi used in the game is wrong. In this talk I will explore what happens when we subtly and not so subtly break math in the source.
Doom is a well known classic first person shooter game with source code released under the GPL in 1999. In this talk I will begin by exploring what happens to the game when we make the value of pi even more wrong. What about when we change other trigonometric functions and constants to incorrect values? How will our familiar understanding and ability to traverse this virtual world change when we do this. Are there any interesting gaming possibilities with non-Euclidean geometries? A brief segway will cover some optimization tricks made to enable the game to run well on hardware available at the time. At the end I will provide a link to other games and public source code repositories that also use an incorrect value of pi. Pointers will also be provided to allow the audience to compile their own incorrect math version of the game.

Additional information

Type Short Talk
Language English

More sessions

7/22/22
MCH2022 Curated content
Elger "Stitch" Jonker
Abacus 🧮
⚠️ Warning! This talk may contain hackers. There may be hackers in the room. There may be hackers surrounding the room. There may be hackers recording this. There may be hackers listening in. There may be hackers that exfiltrate data. There may be hackers wearing shirts. There may be hackers carrying spying devices. OH NO! There are hackers EVERYWHERE! What can we do now, except having a party?
7/22/22
MCH2022 Curated content
Jelle vd ster
Abacus 🧮
What do big tech, synthesizers, the crucifixion and Matthäus Passion have in common? Find the answer in the tech performance The Silicon Passion. We’ve all embraced big tech —but is it a warm hug or a strangulation? Bear witness to a debate of biblical proportions between tech nerds, technology and its users. In The Silicon Passion SETUP, in collaboration with de Transmissie (David Schwarz en Derk Stenvers) and Rodrigo Ferreira, is looking for a way out of the pit that technology has ...
7/22/22
MCH2022 Curated content
Clairvoyance 🔮
Lightning talks are a 5 to 10 minute quick talk on an interesting subject. They can be with or without slides, and with or without proper preparation. if you weren't accepted in the main CfP, this is also a great opportunity to give an abridged version of your talk. These sessions will be available to sign up to later on, with details on the wiki.
7/22/22
MCH2022 Curated content
Mikko Hypponen
Abacus 🧮
This is a submission for a keynote talk at MCH2022. The Internet is both a familiar, comfortable place as well as a bottomless rabbit hole you can lose yourself in. The Internet has always been like this from its inception, the difference now is the scale and consequences are almost immeasurable - and it tests the limits of human imagination. When you look into the mirror of the Internet what you see reflected back depends on what you are looking for. It has become largely a reflection of ...
7/22/22
MCH2022 Curated content
Battery 🔋
Thanks to DNSSEC and DANE, it is possible to automatically verify user@domain.name identities by checking with domain.name servers. The real problem however, is integration with existing protocols, instead of inventing something completely new and perhaps web-only. The purpose of our work on Realm Crossover mechanisms has been to design generic solutions that extend many different application protocols, without changing their protocol specs.
7/22/22
MCH2022 Curated content
Klaus Agnoletti
Clairvoyance 🔮
Utilizing collaborative security to collect data on attacks we were able to detect Log4J in a quite unusual but effective manner. We'll show you how CrowdSec enables the entire infosec community to stand together by detecting attempts to exploit a critical 0day, reporting them centrally thereby enabling anyone to protect themselves shortly after the vulnerability was made public. The unusual part is that this is done using FOSS software and by analyzing logs of real production systems but in a ...
7/22/22
MCH2022 Curated content
bert hubert
Abacus 🧮
Building on the very well attended DNA presentations ("DNA: The Code Of Life") at SHA2017, this talk will cover: * A brief recap what DNA is and how it works * It is surprisingly digital! * How reading DNA is within 'pro-sumer' reach now * (I might bring a live demo for after the talk) * An overview of DNA editing technologies (offline, and online: on living organisms) * Including the famous CRISPR-CAS, but also newer variants * How does such editing actually work in a lab? * The surprising lack ...