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bob1029 | on: We should be more ambitious with the software we build
> Naturally, game engines are crazy optimized, so the UI runs butter smooth and uses pretty much no resources.

We should build everything using a AAA FPS engine loop now that we can. The amount of shit that happens in one rendered frame of overwatch is wild. And then we go and do like 200 of those per second.

chamomeal | parent | next
Yeah but it’s okay if overwatch takes all of your computer’s effort to run. Imagine if postman used 13 gb of vram
nananana9 | root | parent | next
If your program does 1/1000 of the GPU work Overwatch does every frame, it will cost in the order of magnitude of 1/1000 of what Overwatch costs to render (some fixed costs aside) -- taking aside the fact that you also don't need to re-render the entire window every vblank.
JazCE | root | parent
i mean, sometimes it feels like it does
loading story #50229892
mlnj | parent | next
One recent performance issue that was raised by a customer was in the end a tiny svg animation loop that was on all the time even when the tab was inactive. So no game engine loops for my customers.
Rohansi | root | parent
SVG animation in a browser works completely differently than a game engine handles animation. SVG is based on the DOM and animating it requires mutating the DOM. Lots of string operations because everything is a string attribute. All of that has a ton of unnecessary overhead.

You actually would have been better off replacing your SVG animation with a game loop! Assuming you're using Lottie you can easily swap it to render into a `<canvas>` which doesn't have any of that overhead and uses `requestAnimationFrame` which automatically gets throttled in inactive tabs.

well_ackshually | parent
No you won't. Firstly because your software is one of dozens running and it doesn't get to take the privilege of fucking over my battery consumption and asking for my GPU to spin so you can edit markdown, and also because 2D rendering is miserable and non-performant in every single game engine you can think off. 2D sucks to make, 2D eats half of your frame time by just existing and slicing those triangles.
nananana9 | root | parent | next
What?

You can try rendering a 2D rectangle as 2 quads in whatever GPU API you like the most, then try pushing the same amount of pixels to a CPU buffer via the widest CPU memory write instructions you can have (and then wait the GPU-accelerated compositor upload them to the GPU anyways to present them...).

I can tell you for a fact one will be 2 orders of magnitude faster, want to make bet which one?

Using a GPU api does not imply you have to render at the screen's refresh rate, or even that you have to update the entire window.

loading story #50230739
apatheticonion | root | parent | next
Haha, in my case, it only renders when frames are needed. Otherwise it's basically an image at 0fps.
LtWorf | root | parent
> Firstly because your software is one of dozens running and it doesn't get to take the privilege of fucking over my battery consumption

This never stopped the Electron devs until now, I honestly can't see why they'd start to get any better now that the slop machine lets them be even lazier.