Geo Ops ▸ Dynamics ▸ Make Rigid Body puts the selected layers themselves into the comp's physics world (rather than their clones). A Dynamics section then appears in Properties for that layer. It works in 2D and 3D comps.
How to use it
- Select one or more layers.
- Choose Geo Ops ▸ Dynamics ▸ Make Rigid Body. It is one undo step.
- Set the Type and other rows in the layer's Dynamics section.
- Click empty space to deselect and set gravity, walls, forces and joints in Dynamics World.
Parameters
| Name | What it does | Default/range |
|---|---|---|
| Simulate | Off keeps the settings but takes the layer out of the world. | On |
| Pin to comp | Pins the layer to the comp where it stands, so it hangs and swings from there. | — |
| Remove | Stops the layer being a rigid body. | — |
| Type | Dynamic: falls, collides and is pushed. Static: a collider that never moves. Animated: its keyframes move it and it pushes others. Dormant: asleep until something hits it. Cloth: hangs as a cloth, drawn through the layer's Mesh Warp (added automatically if missing). | Dynamic |
| Grid | (Cloth) Points per side. | 9 pts, 2–13 |
| Pinned | (Cloth) What holds it up: Top edge, Left edge, Top corners or Nothing. | Top edge |
| Stiffness | (Cloth) How stiff the cloth is. | 0.8, 0–1 |
| Collider | 2D: Outline (the art's own shape, shape and text layers), Hull, Box, Circle. 3D: Auto (a model's own shape, a flat layer's outline as thick as its extrusion), Hull, Box, Ball / Coin. | Outline / Auto |
| Density | Mass per area. (not Static) | 1, min 0.001 |
| Friction | Grip when sliding. (not Static) | 0.5, min 0 |
| Bounce | Rebound. (not Static) | 0.2, 0–1 |
| Damping | Slows movement. (Dynamic, Dormant, Cloth) | 0, min 0 |
| Spin Damping | Slows spinning. (Dynamic, Dormant) | 0.05, min 0 |
| Velocity X / Y (Z in 3D) | Starting speed. | 0 px/s |
| Spin | Starting spin. | 0 °/s |
| Keys, then sim: Release at | Follow this layer's keyframes until the release time, then take over with the speed it had. | Off |