Shape
Cubic S-curve
degree 3 · 4 control points
Quadratic arch
degree 2 · 3 control points
Quartic W
degree 4 · 5 control points
Quintic wave
degree 5 · 6 control points
Cubic loop
degree 3 · closed curve
Sextic
degree 6 · 7 control points
Construction
╱ Casteljau
△ Hull
→ Tangent
Speed
▶ Slow
▶▶ Normal
▶▶▶ Fast
Control points
➕ Add
➖ Remove
Drag any control point.
Casteljau: iterative lerp
shows how t picks a point.
Hull: convex bounding polygon.
t =
0.000
degree =
3
points =
4
B(t) =
(—, —)
Drag
— move control points
Add/Remove
— change degree
Casteljau
— toggle construction