Setting up a skeletal structure to allow movement.

3D animation involves creating moving images in a three-dimensional digital environment. It uses software to model, texture, and render objects and characters, giving them a sense of depth and realism. This process includes several stages:

1. **Modeling**: Creating the 3D objects or characters.
2. **Texturing**: Adding surface details and colors to the models.
3. **Rigging**: Setting up a skeletal structure to allow movement.
4. **Animation**: Defining the movement of models over time.
5. **Lighting**: Placing lights to enhance realism and mood.
6. **Rendering**: Generating the final images or sequences from the animated scenes.

Popular software for 3D animation includes Blender, Autodesk Maya, and Cinema 4D.