Product media placeholder
Replace this area with a screenshot or short walkthrough video during the media sweep.
F367 step 5 v2 — one constraint between two bodies. Backed by the engine's impulse-joint set. Four kinds: `distance` (rope-like, fixed length between anchors), `revolute` (pin joint, free rotation around anchor), `prismatic` (slider along axis), `weld` (fully fixed pose). Wire `bodyA` / `bodyB` from `physicsBody.id` outputs OR from indexed entries of `physicsBodyStagger.bodyIds` to address bodies inside a stagger.
Type physicsJointCategory solversContext sharedDynamic ports noCompound no
Inputs
| Port | Type | Description |
|---|---|---|
world | any | World |
bodyA | float | First body endpoint. Wire from `physicsBody.id` or an `arrayPick` of `physicsBodyStagger.bodyIds`. |
bodyB | float | Second body endpoint. |
enabled | float | Enabled |
Outputs
| Port | Type | Description |
|---|---|---|
id | float | Engine handle for the joint; useful for debug introspection. |
Parameters
| Parameter | Type | Default | Description |
|---|---|---|---|
jointKind | enum | "distance" | Joint Kind options distance, revolute, prismatic, weld |
localAnchorA | string | [0,0] | Body-A-local px offset of the joint anchor as JSON `[x, y]`. [0,0] = body centre. |
localAnchorB | string | [0,0] | Body-B-local px offset as JSON `[x, y]`. |
length | float | 100 | Distance joint: rest length between anchors. Ignored for other kinds. min 0; step 10 |
lowerAngle | float | null | Lower Angle (rad) — revolute only step 0.1 |
upperAngle | float | null | Upper Angle (rad) — revolute only step 0.1 |
lowerTranslation | float | null | Lower Translation (px) — prismatic only |
upperTranslation | float | null | Upper Translation (px) — prismatic only |
localAxisA | string | [1,0] | Slider axis as a 2D vector [x, y]. Normalised internally. |
Use cases
- Tetherball — one ball jointed to a fixed anchor body via `distance`. Distance acts as the rope length; the ball swings under gravity.
- Skeleton ragdoll — `revolute` joints between adjacent bone bodies with `lowerAngle` / `upperAngle` limits modelling joint stops. Triggered by a state-machine impulse.
- Cloth banner — N bone bodies in a row + N-1 `distance` joints with low stiffness. Combined with a wind force from `physicsApplyForce` driven by Perlin-noise expression.
Related nodes
Envelope
Use physicsJoint as the node type inside a graph node envelope. Add id, optional params, optional connections, and optional activeWhen based on the guide context.
Generated source
Registry faster-motion-docs/node-registry.jsonCategory page /help/faster-motion/faster-motion-node-category-solvers/