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Depth of Field
Depth of Field from random sampling
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 2,047 posts.
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Deep Q-Learning: Space Invaders
Ever since I learned about neural networks playing Atari games I wanted to reimplemnted it and learn how it works. Below you can see an AI playing Space Invaders. I trained it during my batch at Recurse Center on little over 50M frames.
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Raytracing won't simplify AAA real-time rendering
Realtime rendering and videogame programming mostly, but I love computer science and visuals in all their forms. This is a notepad of my ideas.
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No Man’s Sky One Year Later
It’s been a year since I last played the captivating , frustrating , and ultimately disappointing No Man’s Sky. There have been some large updates since then, and so I thought now would be a good time to come back and see how the game has evolved. These columns are going to run through September, so you’re basically…
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Echo Chess: The Quest for Solvability
Chess puzzles, but you are what you eat.
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Ten Years of World of Warcraft
WoW has always been a contradiction of sorts: not the pioneer, but the one that solidified the pattern. Not the experimenter, but the one that reaped the rewards. Not the innovator, but the one that was well-designed, built solidly, and made appealing. It was the MMO that took what has always been there, and delivered…
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My 1981 adventure game is now a multimedia extravaganza
Over the last few weeks, I created a computer game set in the Arctic. Or maybe I’ve been working on it since 1981. It all depends on how you count.
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A Perceptron in Age of Empires II
An operational NAND gate in Age of Empires II , built with the game's scenario editor. This one can also be built within the game in a two-player setup but it's a lot easier (so to speak) to just script it.
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Magic Leap – Separating Magic and Reality
The Goal – Explain What is Magic Leap Doing Magic Leap has a way of talking about what they hope to do someday and not necessarily what they can do anytime soon. Their patent applications ar…
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The Life and Times of Maxis, Part 1: SimEverything
I’m still to this day just blown away by continental drift and things like that, stuff that most people think sounds pretty boring.
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Simulating a Planet on the GPU: Part 1 (2022)
A year-long journey through polygon meshes, cubemaps, and smoothed-particle hydrodynamics in pursuit of a modern SimEarth
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Synthesizing Music from JSON
tl;dr: pl_synth is a tiny music synthesizer for C & JS and an editor (“tracker”) to create instruments and arrangements.
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There are too many video games
Let's marinate in some hard truths. Dissect what is in front of our eyes.
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Anti-Cheat Expert: all your pixels are belong to us
a blog about exploring reverse engineering, hypervisor development and software programming.
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I Am the Cheapest Bastard in Indie Games
A Queen's Wish screenshot. Note that I use game art that I like to look at. This is necessary because I'll be staring at it for years, and...
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What “Roguelike” Meant
Several recently released games have rekindled the old discussions on the meaning of the word “roguelike”. This post is an attempt to…
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OpenGL – OS X Mountain Lion vs. Mavericks
During Apple's WWDC 2013 keynote, the graphically-inclined may have noted "OpenGL 4" among OS X Mavericks' feature list. I was curious and decided to
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Time travel in Braid
I bought Braid on the promise of lavish visuals and neat puzzles with temporal mechanics, and on this basis I was rewarded. I found some frustration with the controls, which I eventually traced to dodgy keyboard drivers - the game wouldn't register the up or down arrows while I ...
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How to Write a Video Player in Less Than 1000 Lines
ffmpeg is a wonderful library for creating video applications or even general purpose utilities. ffmpeg takes care of all the hard work of video processing by doing all the decoding, encoding, muxing and demuxing for you. This can make media applications much simpler to write. It's simple, written in C, fast, and can…
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The year of peak might and magic
Some passions are lifelong, but many others fade away over the course of a life, to be replaced by others. Not long after Jon Van Caneghem, the founder of New World Computing, sold his company to 3DO , it started to become obvious to everyone who worked for him that the torch he carried for computer games no longer…
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Fixing the iterative damping interpolation in video games
As I'm exploring the fantastic world of indie game development lately, I end up watching a large number of video tutorials on the subject. Even though the quality of the content is pretty variable, I'm very grateful to the creators for it. That being said, I couldn't help noticing this particular bit times and times…
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The Evolution of Direct3D
alexstjohn.com is your first and best source for information about alexstjohn. Here you will also find topics relating to issues of general interest. We hope you find what you are looking for!
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It's a bird, it's a plane, it's Super Cassette Vision
The Epoch Cassette Vision was a moderate success. But in 1983, that all ended, when Nintendo and Sega released new consoles, which had more advanced hardware...
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