iced-rs/iced

Damage tracking / partial present

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#367 建立於 2020年5月29日

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描述

Damage tracking allows for power savings by not rerendering regions unchanged between frames. There's actually two optimizations made possible by tracking damage: in the desktop compositor (you just tell it the region) and in the application (a bit more tricky, but e.g. I've implemented support in WebRender+EGL recently).

Doesn't look like wgpu supports passing the VkPresentRegionKHR yet, so I've raised an issue for this: https://github.com/gfx-rs/wgpu/issues/682

On the new GL backend though, it should be possible to use EGL_KHR_swap_buffers_with_damage (e.g.).

But first, iced should do the actual tracking :)

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