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pcwalton's profile
Patrick Walton
Patrick Walton
Patrick Walton
@pcwalton

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Patrick Walton

@pcwalton

Research engineer at Mozilla

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

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    1. Matt DesLauriers‏ @mattdesl 11 Jul 2018
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      Small experiment with CSS Houdini Paint Worklets – basically using Chrome DevTools as a GUI editor to live-tweak code art. https://gist.github.com/mattdesl/d2ab8b8cee617f749a25bad69c0b1182 …pic.twitter.com/6Dvuru58PL

      4 replies 19 retweets 137 likes
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    2. Patrick Walton‏ @pcwalton 11 Jul 2018
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      Replying to @mattdesl @dalmaer

      I remain deeply skeptical of CSS Houdini Paint Worklets as further entrenchment of a ‘90s era model for 2D graphics.

      1 reply 0 retweets 3 likes
    3. Dion Almaer‏Verified account @dalmaer 11 Jul 2018
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      Replying to @pcwalton @mattdesl

      I like having <reusable-thing> that can now have a ripple painted this was versus the current pain.

      1 reply 0 retweets 1 like
    4. Matt DesLauriers‏ @mattdesl 11 Jul 2018
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      Replying to @dalmaer @pcwalton

      Imagine all the new <blink> tag possibilities ... !

      1 reply 0 retweets 2 likes
    5. Matt DesLauriers‏ @mattdesl 11 Jul 2018
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      Replying to @mattdesl @dalmaer @pcwalton

      (But seriously – this API is cool because it adds some new features to the browser that weren't possible before, like a canvas context running off the main thread.)

      1 reply 0 retweets 1 like
    6. Brenton‏ @appsforartists 11 Jul 2018
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      Replying to @mattdesl @dalmaer @pcwalton

      Perfect API or not, they unlock treatments that weren't previously possible. I've built interactive prototypes with die cut edges (like the ones on https://material.io/design/shape/about-shape.html …). Paint Worklet was the only technique that didn't have pathological animation performance.

      1 reply 0 retweets 1 like
    7. Brenton‏ @appsforartists 11 Jul 2018
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      Replying to @appsforartists @mattdesl and

      Animation performance on a concave edge with shadows was even acceptable on a ZTE Blade L110, the cheapest phone available in Greece last summer (and the crappiest one I could get my hands on at the time).

      1 reply 0 retweets 1 like
      Patrick Walton‏ @pcwalton 11 Jul 2018
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      Replying to @appsforartists @mattdesl @dalmaer

      I’d like to see this as a benchmark for WebRender :) My concern with Houdini Paint (and a lot of Houdini, really) is that they bake in what’s currently in the platform, when e.g. the current 2D graphics API is an artifact of history, not well suited for modern hardware.

      9:32 PM - 11 Jul 2018 from Dogpatch, San Francisco
      2 replies 0 retweets 0 likes
        1. New conversation
        2. Matt DesLauriers‏ @mattdesl 12 Jul 2018
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          Replying to @pcwalton @appsforartists @dalmaer

          I don’t really mind the Canvas2D API but I do wonder how browsers would approach it differently today. Maybe lower level constructs? I’ve been trying to re-implement parts of it with WebGL but it’s hard to match the polygon triangulation, thick lines & MSAA. Also fonts.

          2 replies 0 retweets 0 likes
        3. Nicolas Silva‏ @nicalsilva 12 Jul 2018
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          Replying to @mattdesl @pcwalton and

          A more GPU/browser - friendly API would make it easier to retain this work across frames and work in terms of retained/animated content rather than working with each frame in isolation (IMO).

          1 reply 0 retweets 1 like
        4. 6 more replies
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        2. Brenton‏ @appsforartists 11 Jul 2018
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          Replying to @pcwalton @mattdesl @dalmaer

          If there's a better API, I'd be happy to see it. I appreciate the simplicity/familiarity of move/line/arcTo, but I'm not married to canvas—just happy there's a way to achieve effects that would be prohibitively expensive Bring on PaintWorklet 2, or whatever the successor will be

          1 reply 0 retweets 0 likes
        3. Brenton‏ @appsforartists 11 Jul 2018
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          Replying to @appsforartists @pcwalton and

          I doubt I could open source the prototype, but would be happy to help you come up with a benchmark. Are you thinking clip-path, Paint Worklet, or anything-that-gets-the-job-done?

          1 reply 0 retweets 0 likes
        4. 1 more reply

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