What is the purpose of the render method in an AppState?

Troubleshooting General Help
1

What is the purpose of the render method in an AppState? Usually you just attach stuff into the root node and all that stuff will be rendered…



Thanks.

2

Yeah exactly, but you might want to do something at the render stage, physics debug draw happens in render() for example.

3

Ok, I see that in BulletAppState. But, why? Why is the physics update/step performed in the render method and not in the update method?

4

Thats the parallel update (multithreading), it makes sense because when the GPU is computing the scene the CPU is mainly sleeping, so why not compute the physics then?

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