Animation Fundamentals - Stationary Pendulum

Pendulum

In pendulum animation, the key principles we need to learn are overlapping action and follow-through


Rules

1. The lubrication of each joint is the same.
2. The weight of each joint is the same.

First Practice - Stationary Pendulum

If we drop the weight from this pose, what will happen?


The weight will fall sequentially and preform a pendulum motion. Now, There are some important things we need to remember
  1. Start by animating the weight closest to the first root.
  2. The period of the amplitude should remain consistent. In other words, if it takes 10 frames to swing to the right, it should take 10 frames to swing back to the left
  3. It should gradually come to a stop due to gravity
the timing remains the same, but the spacing varies.
  • If there is a diffence in the period of the amplitude, the pendulum moves to the right in 10 frames but returns to the left in 9 frames, it will appear as if the pendulum is trying to return to its original position too quickly ( ex : An antenna or an object with strong elasticity, giving it a stiff appearance. )
The graph of the first joint.

When looking at the graph editor, you should see a sillhouette of a graph that gardually slows down.


Once the first joint is complete, the second joint should be offest by 2 frames due to inertia

Inertia
  • When the first joint moves, the second joint follows, but not immediately it lags slightly behind
If the second joint is offset by 2 frames, how many frames should the third joint be offset?
  • The answer is the same 2 frames. The reason is that we have defined all joints to have the same lubrication, If the third joint were offset by 3 frames, it would create a slightly stiffer motion.

  • In the bent first pose, as the weights drop, the second joint continues to face its original position for up to 2 frames, and the third joint continues to face its original position for up to 4 frames.
In other words, the second joint starts and arrives 2 frames later than the first joint, and the third joint starts and arrives 2 frames later than the second joint.


Graph Information for the Pendulum's Joints






Location: 미국 캘리포니아 로스앤젤레스

Comments

Post a Comment

Popular posts from this blog

Basics of Camera Techniques : Two Shot

Image
 Two Shot Definition ● Core-Concept The two-shot is the core unit for illustrating the psychological distance and the fluid dynamics of a relationship within a single frame ● Framing There are no constraints on shot size. Whether it is a distant Long Shot (LS) establishing the spatial relationship between two figures or a tight Close-up (CU) emphasizing their shared interaction, any composition that prioritizes the presence of two subjects is classified as a "Two-Shot."
Read more

Basics of Camera Techniques : Single Shot

Image
Single shot Definition Core Concept : A shot that features only one person on screen to establish a direct, 1:1 relationship between the character and the audience. Framing : There are no constraints on shot size. Whether it is a distant Long Shot (LS) or an Extreme Close-up (ECU) of just the eyes, any composition featuring a single individual is classified as a "Single Shot." When to use A Single Shot is not chosen simply because a character is physically alone It is used when there is a specific "psychological intent" Portraying Internal States : Used when a character is lost in deep thought, experiencing confusion, or making a pivotal decision. By excluding the surrounding environment, it gives the audience the sensation of stepping inside the character’s mind. Isolation and Alienation : Even in a crowded space, framing a specific character in a single shot can visually demonstrate their exclusion or psychological disconnection from the group. Exclusivity ...
Read more