> > I use bgfx for a few games & can run it, with any of the filters with no lag at
> > I'm currently using bgfx mostly with gauntlet legends & gauntlet dark legacy which
> > are pretty demanding games. If you're using any artwork, you might want to try
> > disabling them as that can improve performance
> I do not use an artwork, the lag is there, believe me, maybe you just got used to it.
> Test it with a high speed camera and an led. I use canon v1 in 1200fps and an arduino
> board which pushes keyboard events with just a 1ms latency. I can measure the lag
> with 1ms accuracy, so I know what I'm talking about.
nobody is saying it isn't.
the most likely reason is it using the 'borderless full-screen window' instead of an exclusive full-screen mode.
in those modes you seem to get additional lag from Windows *forcing* vsync, and some background window composition stuff.
a lot of games seem to be using that mode now tho unfortunately, wouldn't be surprised if the true full-screen modes end up being phased out by Microsoft which will certainly be a problem.