Virtual Labs

1. Consider a complex character model with a hierarchical structure. The character has a head, two arms, and two legs, all connected to the main body. If the character performs a complex movement like a cartwheel, how would the hierarchical structure facilitate this animation?

a: By allowing independent animation of each body part. b: By simplifying the number of joints and bones in the model. c: By ensuring smooth transitions between keyframes. d: By enabling the character to maintain its overall shape during the movement.

2. In a hierarchical modeling system, how would you implement a scenario where a character's hand needs to remain stationary while the rest of the arm moves?

a: Create a separate hierarchy for the hand. b: Apply a constraint to the hand object. c: Use inverse kinematics to control the arm movement. d: All of the above.

3. Imagine a scene with a robot arm. The arm has multiple joints, each with its own degree of freedom. How would you use hierarchical modeling to control the movement of the robot arm and ensure that each joint moves correctly in relation to the others?

a: Create a linear hierarchy with each joint as a child of the previous joint. b: Create a tree-like hierarchy with the base of the arm as the root and each joint as a branch. c: Use a flat hierarchy with all joints at the same level. d: Create a separate hierarchy for each joint and then combine them.

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