[Flightgear-devel] ApiTrace OpenGL debugger

[Gary C. <gar...@gm...>]

Just read about ApiTrace, a new OpenGL debugging tool, on Phoronix.
See article at
http://zrusin.blogspot.com/2011/04/apitrace.html. It's quite an
amazing tool, consisting of a tracer library and a full featured
replay GUI. You can replay the trace, examine any state, look at
shaders and textures, change things on the fly, etc.

It worked fine on some lesser programs I tried (a roller coaster
program and a homegrown 3D model viewer for Orbiter spacecraft), but
FlightGear has defeated it so far. The trace is captured without
problems, but the GUI crashes after a while - most likely due to
running out of memory (I only have 3G, and just starting up FlightGear
gave around a 40M compressed trace file).

Has anyone else had success with this? I'd like to debug FlightGear
shaders on ATI hardware with it, they're still a little iffy. Of
course there are about a million other uses.

Gary