So I know that I have to maintain 90fps all the time for vive but what I don’t understand that when my scene is 45 fps all the time, I don’t feel sick at all or feel screen tearing. The whole level is playable with 45 fps. Would this mean, the game would make other players sick or what am I missing?
What really happens when the fps drops to 45? Will that annoy other players who are more sensitive to motion sickness?
Bottom line is I can play my scene with 45 fps and the whole thing looks good and feels smooth. What should I be worried about?
Remember, if you are doing something not for yourself, but for others, then you need to try and test it on others.
I know, that of course, makes total sense. I wanted to find out if there are others that feels the same about “45 fps”?
Steam VR is reprojecting missed frames. If you turn off both reprojection options in the Steam VR dev settings, you’ll feel very different about 45 fps being OK.
I know that as well, you are right about turning off reprojection. Why would anyone turn that off?
The thing is I’ve just bought a UE4 made VR game on steam and the whole game also runs on 45 fps…I can play it fine but I see people complaining about performance…
How firm is this universal law of “90 fps must be reached” is still a mystery to me…
What Naitguolf said.
90fps is not a mystery. Maintain 90fps. Period.
It’s not very professional to make a VR app that can’t maintain 90 fps.
(I’m looking at you, Fallout VR)
While you’re developing, especially if you’re prototyping and not taking care of optimization, it can happen that, especially because of draw calls, the scene will run at 45fps.
I’m also comfortable with this fps, but I know that a lot of people are not, so it’s a matter of what you’re developing and if you’re the only one who’s going to play it.
If you’re planning to release what you’re developing, you definitively need to optimize what you’re doing…it doesn’t matter if you’re comfortable with 45fps, the minimum for a comfortable experience is 60fps and both CV1 and Vive needs to run at 90fps to be a pleasant experience, that is set as the standard, otherwise there won’t be those kind of standards if you can do whatever you want, without taking care of how your game will run.
Get 90 fps all the time and you’ll prevent VR sickness. End of story.
And yeah i was playing VFX-1 in the mid 1990s with like 10 fps and we survived. Noone vomited but some were close. But it doesn’t mean 45 fps is the new 90 fps. Get your stuff together and optimize it. It’s like being “OMG, my cars max speed is 30 MPH, I am fine with that!”. Yeah but many people aren’t.