Bartosz Ciechanowski
@BCiechanowski
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I published a little commentary article about my recent "Curves and Surfaces" blog post:.
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PSA: you can assign IOSurfaceRef as CALayer’s ‘contents’ and it will render just fine!.
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I wrote a blog post on GPU powered computation on iOS. Up to 64 times faster than CPU. http://t.co/tvbh1d8aNI.
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@DaveDawkins I did the 3D models in @Shapr3D with small post processing in Blender, animations are just done by hand.
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Machine learning friends, I added support for bfloat16 to
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I added support for showing the exact decimal value stored in floats and it's fairly shocking how many digits some of them require, e.g.
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@fatiherikliuniq Gears are just generated programmatically, it made it very easy to tweak their shape as needed.
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@jkleiser Hi Jon, I don't use any libraries, just bare canvas/WebGL, I just find it more convenient to use things directly.
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I like how @arekholko read the clang source code to figure out when the self-capture-in-block warnings are emitted: http://t.co/O88fkZuH3a.
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@spiralganglion Just bare webGL, it’s not that many lines of code to setup and it gives me complete control over what I want to render.
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@redblobgames @DaveDawkins @Shapr3D I started working on it around two months ago on most weekends and many weekday evenings.
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@arekholko Not necessarily true! Enable color offscreen in CA instrument to verify: no tint is free masking, green tint is very cheap masking, only yellow tint is an “expensive” case. A single CALayer without sublayers and just contents or just backgroundColor set can be masked for free!.
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I’m finally reading Singh’s OS X book and it’s full of old school gems like “The Java environment is a core component of Mac OS X.”.
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"If you think Apple Watch is a flop you are a moron." – never change @gruber, never change! ❤️.
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'A Good Snowman Is Hard To Build' is one of the best iOS puzzlers I've played in a while. Highly recommended!
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"Seeing Circles, Sines, and Signals" by @JackSchaedler is just super cool. http://t.co/btV6BiT8U7.
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I wrote a bit about technical interview @macoscope, we'd love to hear your feedback! http://t.co/pYmH8GaiRL.
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NSMutableArray uses circular buffer. Insertion/deletion from either end is OK. It never shrinks in size and reallocates with 1.625 factor.
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"A Strategy for Great Work" by @kocienda is just brilliant. One of the most enjoyable sessions of WWDC 2014.
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As a sneak peak, here's what my next blog post will discuss. This is a UILabel. http://t.co/toHFvL6WYW.
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I created an open-sourced replacement for CAMeshTransform:
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Realities of making niche iPad apps: since it's launch 9 months ago Revolved made $344.
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“…we just leak the old hashtables”. I love how straightforward this is!
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@lilbitesofcocoa "Try to avoid . views with a clear background" – it's fine, background colors with 0 alpha are not rendered (images are).
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@zanderadi @_ptrks For 3D on the web it’s probably easiest to start with something like three.js.
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Today I've launched Revolved, my brand new iPad app. Get it at
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@johnsundell The nice thing is it also helps developers who use Objective-C as the typedefs for NSStrings are always better than plain NSStrings. Everyone benefits from this change!.
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@jahidkureci I haven't tracked time, but it took a while, I started working on the article in late November.
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@krzyzanowskim @KOSTAPAPPASGR they’re not the same! Since iOS7 UIBezierPath returns “modern” smoothed paths. Layer’s cornerRadius is circle.
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@steipete The only caveat with +flush is that it if you’re in any +begin/+commit “block” the actual commit to the server (and thus changes on screen) will happen after the +commit is called.
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David Rönnqvist's new book is great SceneKit dive and interactive explanation of graphics programming essentials:
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It’s been my last day at Macoscope. I had amazing time and I’ll miss the people greatly, but it’s time for the next chapter.
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@istvan_csanady @Shapr3D Thank you for founding the company! Shapr3D was easily the most enjoyable CAD experience I’ve ever had.
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Well, you don't have to use UIToolbar or hijack CABackdropLayer anymore!.
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@palavalli I use Hugo static site generator, the content is just handwritten JS, CSS, and Markdown.
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@hfossli . IOSurface as a backing of e.g. MTLTexture then after you're done rendering you can just hand it off to CA without ever touching CPU/RAM.
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@steipete CG can’t possibly have implementation of every useful geometrical function and letterboxing is arguably most often tied to video.
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@NatashaTheRobot The Little Schemer. Starts with super easy recursion examples, ends up deriving Y combinator. Absolutely brilliant.
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Unfortunately unreadable _UISiriWaveyView shaders: Probably generated by tool or run through some kind of optimizer.
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Pan-Pan by @spelkraft is a great puzzle-adventure game, a great way to spend an evening or two! .
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NSDictionary is a hash table with linear probing. It keeps its keys and objects in indexed ivars. It may return an object for nil key.
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@aidanwaitecomma The second hand rotates once per minute, the minute hand rotates once per hour, the hour hand rotates once per twelve hours.
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For some reason I've never played Micro Corruption before. Fantastic reverse engineering challenges – http://t.co/20kqhdGybM.
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@shubham_arora_0 @haritssr Nothing in particular, just seeing what it renders and tweaking from there.
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Don't be deceived by the looks, Stephen's Sausage Roll is amazing puzzle game
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@thomasaull It’s unminified JS so they are easily accessible in the website source itself, however, there are no comments and the quality is subpar though, since it’s all a write-once code.
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@TimOliverAU If you wanna chat about rounded corners some more with specific details of when it’s free and what to avoid then I’ll also be there on the Friday morning labs!.
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