Here comes the 26th issue of WebRender’s newsletter. Let’s see what we have this week:

Notable WebRender and Gecko changes

• Bobby reduced GPU memory usage on Windows by making it so ANGLE doesn’t allocate mipmaps for all textures.
• Bobby further reduced GPU memory usage by sharing the depth buffer for all intermediate targets.
• Andrew improved animated image frame recycling.
• Andrew fixed a rendering bug.
• Andrew fixed an issue that caused some configurations that should have WebRender enabled to disable it.
• Emilio fixed a bug.
• Emilio fixed another bug.
• Glenn switched line decoration from being clip masks to cached primitives.
• Glenn cached the current batch for opaque and alpha batch lists during batching.
• Glenn moved the generation of border segments from frame building to scene building.
• Glenn improved the detection of opaque border segments (moving primitives to the opaque pass improves performance).
• Sotaro fixed a flickering issue a startup on Windows.
• Sotaro fixed a frame scheduling issue.

Ongoing work

• Doug is making progress on document splitting. This will allow us to render the UI and the web content independently.
• Kats and Markus are looking into standing up WebRender in GeckoView (Android). It’s not quite usable yet but early performance profiles are very encouraging.
• Nical is auditing WebRender’s resistance to timing attacks.
• Matt is investigating SVG performance.
• Bobby is looking into further reducing GPU memory usage by improving the texture cache heuristics.
• Gankro is making progress on blob image re-coordination.

Enabling WebRender in Firefox Nightly

• In about:config set “gfx.webrender.all” to true,
• restart Firefox.

https://mozillagfx.wordpress.com/2018/10/18/webrender-newsletter-26/