Question Update Cap Drops Fps

[gghhoosstt123]

Setting update cap to more then 1 like 2 or 3 reduces fps by 15 or more and even moving camera around feels stuttery, is this normal? do i need to have a power full pc to be able to set it to atleast 2?

 

[everlaster]

Update cap enables more physics updates to occur per frame in order to keep the physics simulation real-time. This will increase CPU load, and if your fps is currently CPU limited, increasing the number of physics updates per frame will reduce fps. Copypaste of an explanation of what update cap does from the VaM Discord:

Update cap 1 basically enforces that you can only have one physics update per frame, so that if frame rate falls below the physics rate, the effective physics rate also falls by the same amount. E.g. if you only get 30 fps at 60 Hz, then you will be running 1 physics update per frame (30 physics updates per second). This will slow the physics of the game down to half speed (because 30/60 = 0.5), but it will also ensure sync between frames and physics updates which will look the smoothest.

Update cap 1 is probably the best if your fps only tends to fall a little bit (single digits) under your physics rate - you get the frame synced physics and the slowdown is probably not too noticeable.

But as soon as the slowdown from a drop in framerate becomes noticeable, it's better to have Update cap 2 or 3. Those allow multiple physics updates per frame. Update cap 2 allows frame rate to be half of the physics rate before there's slowing down, and update cap 3 allows frame rate to be 1/3 of the physics rate before there's slowing down.

 

[gghhoosstt123]

Update cap enables more physics updates to occur per frame in order to keep the physics simulation real-time. This will increase CPU load, and if your fps is currently CPU limited, increasing the number of physics updates per frame will reduce fps. Copypaste of an explanation of what update cap does from the VaM Discord:

Hmm well i guess can't do anything about it. The only reason i wanted 2 cap so that the male hip thrust becomes instant responsive for hard humping, for now the only close solution to that i could do was to have pelvis spring upto max including force so the result are atleast kinda similar.

 

[everlaster]

Yeah, the reason you were experiencing higher fps at cap 1 was because your physics was being slowed down. So, it's really about whether you want to keep running at real time or not, potentially at the cost of fps.