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  "publishedAt": "2026-03-18T10:30:27.000Z",
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  "tags": [
    "A Decade of Slug - Eric Lengyel",
    "paper in JCGT",
    "Slug Library",
    "patent"
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  "textContent": "A Decade of Slug - Eric Lengyel\n\n> What is now known as the **Slug Algorithm** for rendering fonts directly from Bézier curves on the GPU was developed in the Fall of 2016, so this year marks a full decade since its inception. I published a paper in JCGT about the technique in the middle of 2017, and my company sold the first license for version 1.0 of the Slug Library not long afterward. Since then, Slug has been licensed widely in the video games industry as well as by an array of companies specializing in areas like scientific visualization, CAD, video editing, medical equipment, and even planetariums. Our clients include Activision, Blizzard, id Software, 2K Games, Ubisoft, Warner Brothers, Insomniac, Zenimax, and Adobe among many others. Slug turned out to be the most successful software product I’ve ever made.\n\n> I was granted a patent for the Slug algorithm in 2019, and I legally have exclusive rights to it until the year 2038. But I think that’s too long. The patent has already served its purpose well, and I believe that holding on to it any longer benefits nobody. Therefore, effective today, I am permanently and irrevocably dedicating the Slug patent to the public domain. That means anybody can freely implement the Slug algorithm from this day forward without a license for whatever purpose they want, and they don’t need to worry about infringing upon any intellectual property rights.",
  "title": "What is now known as the Slug Algorithm for rendering fonts directly from Bézier curves on the GPU…"
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