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Learning path · 8 steps

Character animation & IK

Hierarchies, rotations and inverse kinematics for characters that reach, aim and plant their feet.

Start: Transforms and Matrices
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  1. Mathematicscore1. Transforms and MatricesBones are transforms in a hierarchy.
  2. Mathematicscore2. Local vs World SpaceConvert targets into a bone's local frame.
  3. Mathematicscommon3. Euler Angles and Gimbal LockJoint limits are usually authored as angles.
  4. Mathematicscore4. QuaternionsBlend joint rotations without gimbal lock.
  5. Animationcommon5. Inverse KinematicsSolve the chain so the hand reaches the target.
  6. Mathematicscore6. Easing FunctionsTiming curves for procedural motion.
  7. Game Feelcommon7. Squash and StretchClassic principle that sells weight.
  8. Mathematicscommon8. Bézier CurvesSmooth paths for hands, cameras and props.