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Weight shift

Posted on December 15, 2009 2 Comments
Filed under Animation, Animation Mentor, Education

The principles of animation have been laid down by Disney Animators Frank Thomas and Ollie Johnston in the “Illusion of life ” in 1981.

Some more concepts have been added over the years and one of the most important addition, or clarification, is the concept of “weight shift”.

When standing straight, our weight is equally distributed over both legs, so to be able to lift up one leg, we need to transfer that weight in the opposite direction of the leg being lifted up.

If a character were to lift up his left leg and did so without shifting his weight from the centre to the right, he would immediately fall to the left as 50% of his weight wouldn’t be supported by his left leg anymore.

Animation is about stylised motion but no matter what style of animation you are going for,
weight shift is a concept you should always keep in mind when animating a character lifting up one of his legs. Successful weight shift is what separate the boys from the men!

Here are several examples for you, a good one I just made in Maya using the great Animation Mentor rig Ballie and a very average one that is still on my showreel :-) {examples coming soon}

{my reel, bottles lifting up his leg}

Ballie Step to side

Kyle Balda has a great weight shift demonstration on the trailer for his Masterclass .

kyle

http://www.kylebalda.com/

Related post:
28 principles of animation

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