Networked Physics with PhysX

[Blue_man]

@B1TZ3R0;719013

I’m working on rewind / replay algorithm, but I’ve a problem on simulation.

I’ve created a new World (as we know) that initialize automatically the PhysX scene which I’ll use for rewind / replay process.

After moving the PxActors from the main scene to the new scene, is executed this code that should execute the simulation 10 times:

	for (int32 a = 0; a < 10; ++a) {
		RRWorld->SetupPhysicsTickFunctions(1.f/60);
		RRWorld->GetPhysicsScene()->StartFrame();
		RRWorld->GetPhysicsScene()->WaitPhysScenes();
		RRWorld->GetPhysicsScene()->EndFrame(nullptr);
	}

The problem is on that line RRWorld->GetPhysicsScene()->WaitPhysScenes(); for some reason the execution stop forever. There’s no crash the executions is blocked.

Blu man, how do you execute the simulation?
Do you talked about calling the function PXScene::simulate, So you skip the FPhysScene simulation?

There is something that I’m missing?

I’m calling simulate function on PxScene and right after that I call fetch function. Also I’m not creating a new scene with UWorld but you need to have a separate UWorld if you want to trace in your scene. A new PxScene also gets created when you initialize FPhysScene and you can set in your new UWorld to use your scene.