The center of mass is the point that represents the mass distribution.
For example: a hammer has a light handler and a heavy iron head. So, the center of mass for the hammer would be closer to the head.
Character rigs in Cascadeur consist of rigid bodies. Every rigid body has its own weight value. On the basis of these rigid bodies, the position of the center of mass is calculated for the character.
As the character’s pose is changing, the center of mass would change as well. Sometimes, the center of mass could even end up outside of the body.
When the center of mass is above the fulcrums, the object is in equilibrium!
Many of you probably know funny toys with such levitation effects. Due to the increased weight of its wings, this bird's center of mass is exactly in its beak, so it only needs to touch the surface with the tip of its beak to keep its balance.
And in Cascadeur, you too can take the Center of Mass into account when you set up poses for your character.
Observing how balanced is the character’s pose can be made more convenient by enabling the projection for the Center of Mass.