Language Clarification: Concurrently accessing the physics simulation about joltphysics HOT 4 CLOSED

The simulation runs across many threads (doesn't matter if you kick it from the main thread or another thread, it will use that thread and as many other threads as you give it - this is abstracted in the JobSystem class with JobSystemThreadPool as a possible implementation). The text above is talking about what happens outside of the physics simulation: You can manipulate bodies and perform collision queries from many threads at the same time.

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Ok. So the main physics loop can exist on the application's main thread, or continuously running on its own thread, and it can be handled just fine provided it has interface access to the application's thread-pool implementation.

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Correct. I'm assuming b.t.w. that 'continuously running' means that the thread continuously runs, not the simulation. During PhysicsSystem::Update the physics system is locked, so other threads cannot read/modify any state. Outside of the PhysicsSystem::Update multiple threads can access and modify the simulation data if you want.

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Gotcha, gotcha. That basically answers the question. So I'm gonna go ahead and close the thread.

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