@modoki/engine / index / JointType3D

Type Alias: JointType3D

JointType3D = "spring" | "spherical" | "revolute" | "prismatic" | "fixed" | "rope"

3D joint type (Rapier impulse joints).

• spring — soft distance spring between two anchor points (rest length + stiffness/damping).
• spherical — ball joint: the two anchors coincide, bodies free to rotate in ALL 3 axes (ragdolls, chains).
• revolute — hinge: anchors coincide, rotation free about ONE axis only (doors, wheels).
• prismatic — slider: relative motion locked to an axis, rotation locked (elevators, pistons).
• fixed — weld: relative position + orientation locked.
• rope — max-distance: bodies may approach but not exceed length.