Reactor

Reactor is a very useful 3D physics tool that can be used when making animations.

This is a basic example of using reactor to create an effect.


To start off you need the create a Rigid Body, to do this you must go to the animation tab, then reactor, create object then select rigid body collection, you can then place this on the scene where you want it.

Once you have done this you will need to place the objects that you wish to animate on the scene, after doing this you will need to add them to the rigid body collection by going to the modifier panel, then clicking the add button under the RB collection properties and finally selecting the objects you want to add and clicking select.

After these steps have been completed you will then need to set up the actual reactor, this is done by going to the utilities tab and then clicking reactor. Once you have clicked reactor a few minimized options will appear, for this example the tab Havok 1 World will be used, within this tab you have the ability to change some settings, these settings are the Mass, Friction and Elasticity. Now changing these settings will allow the objects to react with each other, for example changing the Mass will allow the objects to fall and will also determine how faster they fall (an object of greater mass will fall faster than an object with low mass).

Below is my example of a basic reactor ability

 And below is another example of using reactor to create animations