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A comment on The web at maximum FPS: How WebRender gets rid of jank. Parent comment

Re:The web at maximum FPS: How WebRender gets rid of jank by pcwalton on Wednesday October 11, 2017 @04:07PM (#15452987)
> That's not at all similar to "painting" where you actually re-render the entire visible portion of the page.

Why not?

Painting a page is mostly just copying pixels from textures too.

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Re:The web at maximum FPS: How WebRender gets rid of jank by Dylan16807 on Wednesday October 11, 2017 @06:34PM (#15454140)
You don't see a notable difference between [tens of] thousands of glyphs and bits being layered on top of each other and processed through a display list, versus copying over one single rectangle from A to B?
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Re:The web at maximum FPS: How WebRender gets rid of jank by pcwalton on Wednesday October 11, 2017 @06:48PM (#15454230)
No, I don't. It adds a small amount of vertex shading time. The GPU primitive rasterization machinery is extremely good.

Benchmark it yourself if you don't believe me!

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