You should see the kind of numbers we see with WebRender. The vertex shading step is <1% of GPU time.
We solved both problems in WebRender. Export display lists across IPC, and have the notion of scroll roots deeply integrated into rendering.
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Are the scroll roots rendered down to textures? Because if not you end up wasting a bunch of energy...
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No, you are not wasting energy, for the reasons I explained. You paint fewer pixels than the traditional approach.
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You have to export display lists for security anyway. The GPU driver can’t be accessible from content, or you’re worse than (Google) Chrome.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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