Debugging GL with apitrace ¶

​Apitrace allows to trace GL calls and replay them.

Using apitrace with the SDK ¶

The Flatpak SDK already provides apitrace. You don't need to install it on your host machine. To record a trace, use this command:

$ WEB_PROCESS_CMD_PREFIX="apitrace trace" run-minibrowser --gtk http://webglsamples.org/aquarium/aquarium.html

Then to inspect the trace:

$ webkit-flatpak -c qapitrace WebKitWebProcess.trace

This doesn't work yet with WPE, due to a yet-to-debug issue in libepoxy.