Animation is the process of creating the illusion of motion and change by rapidly displaying a sequence of static images that minimally differ from each other. In traditional animation, this is accomplished by drawing each frame by hand, while in modern computer-generated animation, it involves creating 2D or 3D models and animating them using specialised software. 3D animation is used in a variety of mediums, including video games, advertising and web content. It can be used to create entertaining and engaging content, to convey complex ideas and concepts, or to simulate real-world scenarios for training or educational purposes.