4 ms·
> 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
by pcwalton 9y ago
> 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.
- Dylan16807 9y agoYou 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?
- pcwalton 9y agoNo, 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!