3D Modeling 3D Modeling Animation & Rigging

Question 1

What is a 'rig' in 3D character animation?

Accepted Answer

A system of bones, controls, and constraints that drive character deformation

Answer

A high-poly sculpt of a character

Answer

A UV layout for a character mesh

Answer

A set of texture maps for a character

Question 2

What does IK stand for in character rigging?

Accepted Answer

Inverse Kinematics

Answer

Image Keying

Answer

Internal Keyframe

Answer

Integrated Knots

Question 3

What is the difference between FK (Forward Kinematics) and IK (Inverse Kinematics)?

Accepted Answer

FK rotates parent joints to move children; IK positions the end goal and auto-solves parent joints

Answer

FK uses GPU; IK uses CPU

Answer

FK is for legs; IK is for arms only

Answer

FK bakes to keyframes; IK does not

Question 4

What is skinning (or weight painting) in 3D rigging?

Accepted Answer

Defining how much each bone influences each vertex of a mesh during deformation

Answer

Applying textures to a character mesh

Answer

Creating blend shapes for facial animation

Answer

Baking the rig into keyframe data

Question 5

What is a keyframe in 3D animation?

Accepted Answer

A recorded value of a property at a specific point in time that the software interpolates between

Answer

A frame where a new texture is applied

Answer

A frame that marks a scene cut

Answer

A frame rendered in higher resolution

Question 6

What is the Graph Editor used for in 3D animation software?

Accepted Answer

Editing animation curves to control the timing and easing of keyframed values

Answer

Viewing polygon count statistics

Answer

Managing scene render passes

Answer

Connecting material nodes