Steam Developer Days were a little while ago, but As a member of the Intel GPA team, I found their VOGL new tool announcement to be very interesting.  It’s a new graphics debugging/tracing tool – this time from Valve.

Here’s the link to Rich Geldreich’s Blog and gives all the details:
VOGL – OpenGL Tracer/Debugger

You can find the github distribution of the software here:
https://github.com/ValveSoftware/vogl