Laws of Physics
The laws of physics determine how objects look and move in real life and you need to understand this to be able to make animations more believable. Mass is the amount of physical matter contained in the object and it is determined by a combination of weight, size, and composition. Mass also affects the speed and movement of animated objects. An example of this is a soccer ball and a balloon. The soccer ball has a greater mass than the balloon, and the soccer ball will move faster than the balloon due to its mass. Gravity is a strong force that draws objects toward each other and it determines how things rise, fall, and move. For example, a bolder will fall straight down because gravity is pulling it towards the earth. Weight is determined by the mass of the object combined with a gravitational force. If a designer is animating a mother picking up her child, he needs to consider the realistic weight of the baby and how it looks to pick up the baby. Directional Forces are ...
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