These major frames are frames in which a lot of change takes place. They are the key points of the animation. Later, junior artists draw the frames that lay in between. This way, the workload is distributed and controlled by the key frames. By doing work this way, the time in which an animation can be produced is cut dramatically, depending on the number of people working on the project. Work can be done simultaneously by many people, thus cutting down on the time needed to get a final product out.
Another advance which helps out tremendously in the process of creating animations is called cel animation. When creating an animation using this method, each character is drawn on a separate piece of transparent paper. A background is also drawn on a separate piece of opaque paper. Then, when it comes to shooting the animation, the different characters are overlaid on top of the background in each frame. This method also saves time in that the artists do not have to draw entire frames, but rather just the parts that need to change such as individual characters. Sometimes, even separa