Node that can be the parent of [PhysicalBone3D] and can apply the simulation results to [Skeleton3D]. Node that can be the parent of [PhysicalBone3D] and can apply the simulation results to [Skeleton3D]. Returns a boolean that indicates whether the [PhysicalBoneSimulator3D] is running and simulating. Adds a collision exception to the physical bone. Works just like the [RigidBody3D] node. Removes a collision exception to the physical bone. Works just like the [RigidBody3D] node. Tells the [PhysicalBone3D] nodes in the Skeleton to start simulating and reacting to the physics world. Optionally, a list of bone names can be passed-in, allowing only the passed-in bones to be simulated. Tells the [PhysicalBone3D] nodes in the Skeleton to stop simulating.