Networked Physics with PhysX

[Blue_man]

@TheJamsh;658996

How are you rewinding the scene to the previous state? Do you save a buffer of the entire physics scene or just one object? Although @scamp 's idea is to store a buffer for the whole scene, that probably isn’t going to scale very well when you have a lot of objects or a huge world.

I’m still trying to do this by just applying the rewind and replay to one object only (the players’ pawn). The ideal approach IMO would be to duplicate the PxScene with all static geometry (and ensure it updates if you create/remove geo at runtime), and then be able to add and remove a single dynamic object at will, which is the players’ pawn. You could then just resimulate the PxScene with the deltatime that you saved with each frame.

There’s still the issue of resolving dynamic collision then… but i’m willing to tolerate that rather than try to duplicate the entire scene and store 96+ duplicates of it.

Right now I am just setting the vehicle to the corrected location/rotation sent from the server which is in the past and then it goes into a loop and fast forwards the scene. I also think it my get quite heavy on the performance if I store a buffer for the whole scene. I might just store a buffer for the objects that are close to the vehicle.