Solver Object

Without a Solver object, there can be no dynamics.

The objects in your dynamics system must be children of a solver object. The solver acts as a container and also specifies the general behavior of the dynamics system such as the accuracy of the animation.

The solver acts as a container for the objects in your dynamics system. Bodies or force fields that are not children of a solver will be ignored by the dynamics engine. But the solver is more than just a container. It has its own settings in the Attribute manager where you can adjust the overall behavior of the dynamics animation such as the accuracy of the motion. A solver is a micro-universe in the sense that it is self-contained. Its children will interact with each other while ignoring objects that are not contained within the solver. The solver’s objects will also ignore the children of other solvers, enabling you to use several solvers in the same scene that will run independently of one another.