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by ben-schaaf 296 days ago
> Since it's more than quick enough to do this on the CPU

This is true until it isn't. A modern-ish CPU at 1080p 60hz it'll be fine. At 4k 120hz even the fastest CPU on the market won't keep up. And then there's 8k.

> they're likely doing it for things like animations and very high quality font renderin

Since they're using native render functions this probably isn't the case.

1 comments

I’m almost nerd-sniped enough to try and see exactly where it breaks down.

What’s a native render function? Do you mean just using a graphics API as opposed to an off-the-shelf UI library?

> What’s a native render function?

As in using DirectWrite or GDI on Windows; or Core Text on macOS. As opposed to shipping your own glyph rasterizer.

Doesn't the blog post specifically say they are shipping their own glyph rasterizer?
No?

> To work around this limitation, we decided to stop using Direct2D and switch to rasterizing glyphs using DirectWrite instead.