기타 스플라인들

Kochanek–Bartels (KB) Splines

Same as a Cardinal spline (includes Tension), but with two extra tweaks (usually set on the entire spline).

Bias (from -1 to +1):

A zero bias leaves the velocity vector alone

A positive bias rotates the velocity vector to be more aligned with the point BEFORE this point

A negative bias rotates the velocity vector to be more aligned with the point AFTER this point

Continuity (from -1 to +1):

A zero continuity leaves the velocity vector alone

A positive continuity “poofs out” the corners

A negative continuity “sucks in / squares off” corners

역주) Kochanek–Bartels (KB) Splines는 저도 정확히 이해를 못해서 원문 그대로 올립니다.

B-Splines

Stands for “basis spline”. Just a generalization of Bezier splines. The basic idea: At any given time, P(t) is a weighted-average blend of 2, 3, 4, or more points in its “neighborhood”. Equations are usually given in terms of the blend weights for each of the nearby points based on where t is at.