@simonbrown Go back to Microsoft Project and make the box a little bit smaller.
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steven haggerty
3.1K posts
steven haggerty
@shaggerty1969
Games programming since t' 80's. Turned pro' in t' 90's. Still can't do maths.
Isle of Wight Katılım Ekim 2009
892 Takip Edilen170 Takipçiler
What on earth is happening to the software development industry!? 🤦♂️🤷♂️
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@SebAaltonen What are you using for GUI (2D) textures? We’re still using uncompressed on mobile at the moment.
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KTX2/basisu supercompressed textures.
1. ETC1S -> ASTC4x4
2. UASTC-> ASTC4x4
3. Uncompressed RGBA8
ETC1S quality is too low. UASTC is pretty good, but barely saves transfer cost (still 4x VRAM savings).
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@SebAaltonen Still on GLES. Only real headache for us is the poor dynamic VB performance, even with orphaning / buffering.
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Is GLES tearing down your renderer or are you tearing GLES down? We dumped GLES one year ago. Nowadays Vulkan on Android and WebGPU in web. No GLES3/WebGL2.
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@UridiumAuthor Wow, your printer was in the blast radius of a VS update…
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Fired up the desktop to update Visual Studio and mysteriously the printer decided to reinstall its driver. I knew that was ominous, and sure enough, the laptop is now denied access to the printer. Just why? Can`t it simply remember my settings? Less to change, surely?
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@DruePeters @lisyarus Because passing in registers is to be preferred for speed. Passing on the stack is a memory write which you want to avoid.
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@lisyarus Why can't the compiler increase the stack size like X86 compilers do? Is it Arm, the calling convention, or something else?
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Some bit of ARM64 trivia that you will probably never ever need: structs of up to 4 floats can be passed in registers, larger structs have to be stored in memory and passed by pointer - which is a bit slower as it forces more r/w ops and disables certain optimizations
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@cmuratori @maxliani Yup, I worked for Microprose, owned by Hasbro, got bought by Infogrames. Just Microprose to me.
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@maxliani I usually use the former name, since it's clearer. I don't say I used to work for Epic, I say I used to work for RAD, etc.
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@lisyarus I used to get to the LCP solver but bailed out when the maths got too much. Couldn’t get my head around it. I think LCP solvers have largely been binned now.
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I've spent a good couple of days overthinking capsule-polyhedron collisions (GJK is too unstable, brute force code missed some cases, etc) and finally settled on an algorithm based on explicitly computing the Minkowski difference. Works like a charm, I can finally move on 😅
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@stevibe Is there a sweet spot gpu that does high tok/s but doesn’t cost the price of a car?
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@ShawnDevDedalus I’ve had a few “it works if I add a printf” bugs. I excel at this kind of stuff unfortunately.
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My daughter calls me a "Printf" debugging Dinosaur just to piss me off ...
I am proud of still being able to debug efficiently
Embedded developers understand me more.-
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@matiasgoldberg Back in the very early android days, we had devices that would lock up if you queried the GLES version…
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ASUS phone deserves an award for crashing on vkCreateInstance()
(all ASUS ROG phones are crashing there).
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@Mr_Andrew_Fox Did you get it done in the end? I just get “sorry we cannot confirm your identity”…
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I downloaded the UK government’s One Login app to get a digital version of my Veteran’s ID.
Newsflash: it’s 100% as shit as expected. Couldn’t even get past the “prove your identity” stage.
If this is a taste, national ID cards are going to be an expensive disaster. Farce.
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@aramh The hours I’ve wasted trying to get nvim to debug so I could get away from VSCode… still end up having to use CLion for C++ and VSCode for js because they work out of the box.
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I was just talking to someone today—actually minutes ago—about how IntelliJ is so much faster than VS Code even though it's written in Java then JetBrains pushed an update that completely revamped the UI, and guess what? It's dogshit slow now.
Unbelievable.
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@SebAaltonen @karthikponna19 My AndroidStdio compilation is approx 2x as quick on stock Ubuntu vs Windows 10.
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@karthikponna19 Whatever you are shipping to. MacOS for Mac and iPhone. Windows for Windows and consoles. Android tools work on both. Linux for server.
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@htmx_org It’s a branch delay slot. If I remember right from Playsation 1 days if the following instruction is single cycle it gets executed before the branch.
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this is the code, from doubleIt(i) { return i + i }
the left shift is pretty obvious because i + i = 2i which is a left shift (faster than an add)
but the jr $31 thing is a function return ($31 is the return address register) and the fact that it begins *before* the shift... 🤯
/cc @mattgodbolt
htmx.org / CEO of Compilers/LLMs (same thing)@htmx_org
my favorite compiler optimization I discovered when I randomly turned on -O3 while showing students how C compilation to MIPS worked & the compiler put the return instruction *before* the left shift (presumably b/c shift is fast & is done by the time the return actually occurs)
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you would have hated programming games in the 1980s
David Fowler@davidfowl
I think the only software engineering practice I am dogmatic about is the fact that global shared mutable state is always bad.
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@rqobela Scheme, lisp, modula 2, pascal, occam, CoBOL. All at college/university. That list probably shows my age…
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@TheCartelDel I remember the Burn Out guys doing a talk at the PS2 Devcon. Was very good. I wrote realtime shadows using renderware back in the day. It was very customisable.
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I've been seeing tweets claiming that, before Unreal Engine, old game studios always created their own custom engines, but that’s a myth. If you ever played PS2-era titles, like GTA, Bully, Burnout, Harry Potter, Pro Evo, Persona, Crackdown, Mortal Kombat, and Tony Hawk, then you played a game that ran on the UK-made RenderWare Engine. Dozens of games used that shit before EA bought and discontinued support for it, (possibly to hurt competitors).
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@SebAaltonen The problem is the spread it too wide. You have top tier perf at the narrow, top end and terrible gpu and memory speed at the popular end.
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The latest Pixel 10 has GPU performance equivalent to iPhone 12 Pro. Google barely increased the GPU performance in 3 generations.
Maybe I am the problem? We shouldn't aim to improve mobile game graphics anymore?
Holly - I like tech@AnxiousHolly
ah yes I randomly overheat
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@urtellingfibbs @bit_sparkle @davepl1968 Yeah I use CLion and Android Studio. It all feels a little clunky, the startup speed it poor too. I use 10X Editor on windows, I’d love to use something as fast as that on Linux.
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1 million pixels per millisecond is 120fps at 4K.
Now you know.
Zed@zeddotdev
It's finally here. Zed is available on Windows. Built from scratch, and rendering at 1 million pixels/millisecond. Download it today 👇
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@JudgeDrokk The sound of the TV when you set the border to white. The entire screen would bend.
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When your Mum and Dad wont buy you a desk for your computer . .
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