Why i need physx source code, if i can edit physx in unreal editor?

Development World Creation
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1

Hi,

i find tutorial about physx programming. I have few questions.

  1. Why i need physx code and physx.sln, if at the end i just add “PhysX”, “APEX” dependency modules to project and i can work with physx?

  2. if i edited physx i have to build whole UE4 in visual studio, or i can build just physx and UE4 can detect changes?

2

You don’t need that to do physics in UE4. That’s for doing very advanced things. It gives you access to the low-level PhysX API which you don’t have access to with UE4 by default – and don’t really need for most things.