A rigged 3D model is a digital 3D model that has been equipped with a skeletal system, which allows the model to be animated and posed in a lifelike way. The rigging process involves creating a hierarchy of joints and bones within the 3D model, and assigning them to specific vertices or groups of vertices. These joints and bones can then be manipulated using animation controls, allowing the model to be posed in a variety of different ways.

Rigged 3D models are commonly used in animation, video games, and other digital media where movement and expression are important. They can be created using a variety of different software tools, including 3D modeling software such as Maya, 3ds Max, Blender, or ZBrush.

The quality of a rigged 3D model depends on several factors, including the skill of the artist who created it, the level of detail in the model itself, and the complexity of the rigging process. A well-rigged 3D model can be a powerful tool for animators and digital artists, allowing them to create lifelike movements and expressions that would be difficult or impossible to achieve with traditional animation techniques.