Cheers bitstorm, I came back here to relay I found how to use it, it appears via my headset rather than on my monitor where I was expecting it.
So, that thread said to increase to say 1.5, and to decrease the EDs built in supersampling to get the best results, so is it now the case that ED has improved to the extent it is a better tool/ better way of doing it?
Though I rather like all my games to look a bit better so don't mind it being set to 1.5.
Sure.
Just remember it's not free, you have all your games at 1.5 then that's a decent increase on the GPU load for every game.
Some games might need it some might not. The issue is if you put more load on the GPU you get a lower framerate, and with a low enough framerate you get nausea. So changing it for all games, sure but there will likely be side effects.
As I say that document is way out of date.
ED used to have just one setting, supersampling. So you'd drop that down a bit and up the Vive supersamping via the config change, that's from when that thread was correct.
But you can now do exactly the same using only ED's settings since ED now has both a supersampling setting and a HMD supersampling setting.
So drop supersampling in ED and up the HMD one. Or alternatively leave the base one and just up the HMD one to 1.5. Job done.
For me that is a good baseline and you can tweak individual settings from there till it's right for your GPU etc...