3D computer graphics (in contrast to 2D computer graphics) are graphics that use a three-dimensional representation of geometric data that is stored in the computer for the purposes of performing calculations and rendering 2D images. Such images may be stored for viewing later or displayed in real-time.

3D computer graphics creation falls into three basic phases:

• 3D modeling – the process of forming a computer model of an object's shape.
  
• Layout and animation – the motion and placement of objects within a scene.
  
• 3D rendering – the computer calculations that, based on light placement, surfaces types, and other qualities, generate the image.