Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.

This is the legacy version of twitter.com. We will be shutting it down on June 1, 2020. Please switch to a supported browser, or disable the extension which masks your browser. You can see a list of supported browsers in our Help Center.

  • Home Home Home, current page.
  • About

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
pcwalton's profile
Patrick Walton
Patrick Walton
Patrick Walton
@pcwalton

Tweets

Patrick Walton

@pcwalton

Research engineer at Mozilla

San Francisco, CA
pcwalton.github.io
Joined November 2009

Tweets

  • © 2020 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Imprint
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    1. Graphics Noob‏ @BlurSpline 4 Apr 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @mrdoob @pcwalton

      @pcwalton this is useful for generating geometries. For resolution independent rendering, the conversion to the following approach shouldn't be difficult. https://threejs.org/examples/webgl_shaders_vector.html …

      1 reply 0 retweets 2 likes
    2. Patrick Walton‏ @pcwalton 5 Apr 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @BlurSpline @mrdoob

      Interesting, looks like you’re tessellating the convex hulls. Is that a constrained Delaunay triangulation?

      1 reply 0 retweets 0 likes
    3. Warren Moore‏ @warrenm 5 Apr 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @pcwalton @BlurSpline @mrdoob

      Looks like it’s modified ear-clipping, based onhttps://github.com/mapbox/earcut 

      1 reply 0 retweets 0 likes
    4. Patrick Walton‏ @pcwalton 5 Apr 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @warrenm @BlurSpline @mrdoob

      Ah. That’s O(n^2) and won’t handle self-intersecting paths, which are extremely common in the real world :(

      2 replies 0 retweets 0 likes
    5. Patrick Walton‏ @pcwalton 5 Apr 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @pcwalton @warrenm and

      Not trying to troll you, BTW; it’s impressive work. Just trying to save you a year’s worth of dead-ends that I had to go through. There’s only one practical solution for tessellation of resolution independent paths that I know of, and it’s what Pathfinder uses.

      1 reply 0 retweets 1 like
    6. Patrick Walton‏ @pcwalton 5 Apr 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @pcwalton @warrenm and

      You will need to rework the whole thing for SVG spec compliance when you get to implementing fill rules. The spec mandates that you handle winding vs. even-odd properly. Probably best to do it sooner rather than later, IMO.

      1 reply 0 retweets 0 likes
    7. Mr.doob‏ @mrdoob 5 Apr 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @pcwalton @warrenm @BlurSpline

      Yeah. I already found some svgs that earcut can't handle. SVG is like COLLADA, we won't support it fully, but we'll have decent support with performant and maintainable code. Enjoying the luxury of not being a browser 😇

      2 replies 0 retweets 1 like
    8. VectorGL‏ @Vector_GL 6 Apr 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @mrdoob @pcwalton and

      libTess is the gold standard for polygon tessellation. A JS port is available:https://github.com/brendankenny/libtess.js/ …

      2 replies 0 retweets 1 like
    9. Patrick Walton‏ @pcwalton 6 Apr 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @Vector_GL @mrdoob and

      I looked at it but it didn’t handle self-intersecting paths with a consistent fill rule last I looked, nor did it preserve curves.

      1 reply 0 retweets 0 likes
    10. VectorGL‏ @Vector_GL 6 Apr 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @pcwalton @mrdoob and

      Indeed, it’s a polygon library. Self intersections can be handled using TESS_BOUNDARY_CONTOURS

      1 reply 0 retweets 0 likes
      Patrick Walton‏ @pcwalton 6 Apr 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @Vector_GL @mrdoob and

      I don’t see fill rules in there though. How do you select even-odd vs. winding?

      2:19 PM - 6 Apr 2018 from South Beach, San Francisco
      2 replies 0 retweets 0 likes
        1. New conversation
        2. VectorGL‏ @Vector_GL 6 Apr 2018
          • Report Tweet
          • Report NetzDG Violation
          Replying to @pcwalton @mrdoob and

          TESS_WINDING_ODD and TESS_WINDING_NONZERO It’s well documented in http://www.glprogramming.com/red/chapter11.html … I use the @MikkoMononen’s excellent port:https://github.com/memononen/libtess2 …

          1 reply 0 retweets 0 likes
        3. Patrick Walton‏ @pcwalton 6 Apr 2018
          • Report Tweet
          • Report NetzDG Violation
          Replying to @Vector_GL @mrdoob and

          Oh interesting, that’s cool. Still, all things considered I prefer the simplicity of trapezoidation over triangulation. Trapezoidation is very similar to what a CPU renderer does, which is nice to avoid surprises.

          1 reply 0 retweets 0 likes
        4. 4 more replies
        1. Patrick Walton‏ @pcwalton 6 Apr 2018
          • Report Tweet
          • Report NetzDG Violation
          Replying to @pcwalton @Vector_GL and

          This is what kept getting me when I looked into tessellation: almost nothing out there handles fill rules properly. The best you can usually hope for is what FIST does: it generates “something that looks reasonable”—not good enough to implement the spec :(

          0 replies 0 retweets 0 likes
          Thanks. Twitter will use this to make your timeline better. Undo
          Undo

      Loading seems to be taking a while.

      Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

        Promoted Tweet

        false

        • © 2020 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Imprint
        • Cookies
        • Ads info