I don't understand why Mark or Simon won't give a definitive answer or commitment to the problem.
Guys?
[edit]: I have been scouring the dxdev archives for "mouse lag" and "render ahead" and found an astonishing amount of good information from epic, nvidia, and other top developers on defeating dx7 mouse lag. The problem cannot occur on dx8 and above due to the rules for Present() which forbid this kind of activity.
Apparently it's mainly sync issue between gpu or cpu and the card. You can get up to half a second of lag - thats huge, and what I and my testers were experiencing. You can lock the backbuffer, or set a setting in DX which prevents this, however most of the discussions go over my head.
Apparently though, there are many solutions which do not require cutting your framerate to 1/3rd!
Guys?
[edit]: I have been scouring the dxdev archives for "mouse lag" and "render ahead" and found an astonishing amount of good information from epic, nvidia, and other top developers on defeating dx7 mouse lag. The problem cannot occur on dx8 and above due to the rules for Present() which forbid this kind of activity.
Apparently it's mainly sync issue between gpu or cpu and the card. You can get up to half a second of lag - thats huge, and what I and my testers were experiencing. You can lock the backbuffer, or set a setting in DX which prevents this, however most of the discussions go over my head.
Apparently though, there are many solutions which do not require cutting your framerate to 1/3rd!