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Sign upAdd some simple optimizations to skip clears and stencil buffer operations. #279
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always clear Z before processing each list.
each layer.
All we care about is whether the matrix transforms a point (x, y) to (a*x + s, b*x + t) for some a, b, s, and t.
This eliminates all use of the stencil buffer in typical browser.html usage, except for the tab switch animation (which uses perspective divide).
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Nice one! |
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@bors-servo r+ |
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bors-servo
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May 28, 2016
Add some simple optimizations to skip clears and stencil buffer operations. This series of optimizations speeds up painting of browser.html by 50% or more on my MacBook Pro/Intel Iris. It allows us to reach 60 FPS in some cases (though not reliably) even when YouTube is playing and visible and a transparent blurry Terminal is in the background. r? @glennw
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pcwalton commentedMay 28, 2016
This series of optimizations speeds up painting of browser.html by 50% or more on my MacBook Pro/Intel Iris. It allows us to reach 60 FPS in some cases (though not reliably) even when YouTube is playing and visible and a transparent blurry Terminal is in the background.
r? @glennw