2009
Disabled When on, the collection and the bodies it contains are not added
to the simulation.
Advanced rollout
ODE Solver Lets you choose the method by which reactor simulates the
collection:
■ Euler The collection calculates the behavior for its rigid bodies using an
Euler ODE (Ordinary Differential Equation) solver. Euler is a fast method
that provides good results in most cases.
■ Runge-Kutta This method is more accurate in some cases but requires
more computation. Use Runge-Kutta if you have many object connected
using
simple constraints on page 3930 like springs or dashpots, because those
kind of systems can easily become unstable.
Reset Default Values Sets values for the collection to their defaults. In this
instance, it sets the ODE Solver back to its default value.
Constraints
With reactor, you can easily create a simple physical simulation by simply
assigning rigid body properties to objects and adding them to a Rigid Body
Collection. When you run the simulation, objects can fall from the sky, slide
across each other, bounce off each other, and so on. However, let's say you
want to simulate a real-world scene such as a person pushing open a door.
How, for instance, do you make sure that the door rigid body doesn't just fall
onto the ground, or that it swings out in the proper direction when pushed?
To accomplish this you use constraints. These let you restrict the possible
movement of objects in the physical simulation. Depending on the type of
Constraints | 3925