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Add section about determinism in user manual

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Daniel Chappuis 2021-09-27 16:55:42 +02:00
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documentation/UserManual/ReactPhysics3D-UserManual.tex
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@ -2269,6 +2269,16 @@ debugRenderer.setIsDebugItemDisplayed(DebugRenderer::DebugItem::CONTACT_NORMAL,
are defined in world-space coordinates of the physics world.
\end{sloppypar}
\section{Determinism}
\label{sec:determinism}
Sometimes, it is important that the simulation of a physics world behaves exactly the same each time we run it. Because of the differences in
compilers and computer hardware it is quite difficult to achieve this between different machines. However, ReactPhysics3D should be deterministic when
compiled with the same compiler and running on the same machine. In order to obtain two similar runs of the simulation of a physics world, it is
adviced to completely destroy and recreate the physics world, the bodies and the joints inside it (in order to reset all the internal data cached
for the simulation). You must also create the bodies and joints in the same order each time and make sure that all the calls to the methods
of your physics world, bodies and joints happen in the same order.
\section{API Reference Documentation}
ReactPhysics3D contains Doxygen documentation for its API. \\