apitrace reports the following warning: > Failed to fast clear depth due to scissor being enabled. Possible 5% performance win if avoided. I discussed this with :mattwoodrow in person and we agreed that it doesn't make any sense for the GL compositor to clear the depth buffer.
Created attachment 8634405 [details] [diff] [review] Disable GL scissor test before clearing. Talos try push for possible OS X 10.10 regression: https://treeherder.mozilla.org/#/jobs?repo=try&revision=a36de385f031
Comment on attachment 8634405 [details] [diff] [review] Disable GL scissor test before clearing. This shouldn't be necessary with the fix for bug 1184534.
Closing as wontfix- GLX defaults to a GLX_DEPTH_SIZE of 0, falling back to FBConfigs with larger depth sizes if necessary. If we're getting a depth buffer at all, it's because we couldn't find an FBConfig without one.
Status: ASSIGNED → RESOLVED
Last Resolved: 3 years ago
Resolution: --- → WONTFIX
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