To configure physics settings, click on the "Physics settings" button under the Physics tab. Gravity acceleration
X/Y/Z
Random seed
Sets the acceleration by gravity. By default it is set to Earth's approximation of 9.8.
Sets the direction of gravity. By default it is -Y("down").
This is a node value for random value used in calculating physics behavior.
Changing this value changes the behavior of physics.
To toggle the display of physics bones(meaning, bones which are set to be controlled by physics), click on the "Show PhysicsBone" button under the Physics tab. They are hidden by default.
To return rigid bodies to their initial positions for the currently selected model, press the "Rigid Body Initialization" button under the Physics tab.
You can toggle a floor for rigid bodies set at y=0 by pressing the "Floor" button under the Physics tab.
Note that the floor's physics group is 16.
To display rigid bodies, press the "Display rigid bodies" button on the Physics tab. Use this when you want to view the behavior of physics objects.
The following three modes are available for physics activity.
Use them as needed.
Activates physics when editing, playing, and rendering.
Disables physics when editing. Physics will be active when playing and rendering.
Disables physics at all times.