Adds a destructible global mesh to a specific room.
This method checks for existing meshes in the room and creates a new one if none exists. The destructible mesh is created using the specified parameters, including the material, points per unit, and maximum points count. A DestructibleMeshComponent is added to the destructible global mesh game object, and the segmentation process is started.
ParametersroomThe room to which the mesh will be added.
ReturnsThe destructible mesh created for the room.