Physics: Explosion
What it does
Physics: Explosion creates a one-time burst that pushes the selected physics-enabled item away from a chosen point. It can also affect nearby compatible physics items.
Required item compatibility
Select a physics-capable shape or 3D model that offers this effect in its Tasks panel. The effect can create temporary physics when needed. Turn on Has Physics in item settings when the item should begin with physics enabled or retain that authored setup.
Configure it outside Build Mode, then test it in normal play.
Setup
- Select the item where the burst should begin.
- Add Physics: Explosion to the task state where it should run.
- Start with a small radius and force, then test before expanding the effect.
Settings
| Setting | What it means |
|---|---|
| Force | Strength of the burst. |
| Radius | How far the burst reaches. |
| Upward Modifier | Adds upward lift to the burst. |
| Origin Offset X | Moves the burst point left or right from the selected item. |
| Origin Offset Y | Moves the burst point down or up from the selected item. |
| Origin Offset Z | Moves the burst point backward or forward from the selected item. |
| Affect Nearby Cubes | Also pushes nearby compatible physics items inside the radius. |
Tiny example
A physics-enabled chest's Active task pushes lightweight nearby props away when the chest opens.
Test and troubleshoot
- Keep Affect Nearby Cubes off until the selected item behaves as expected.
- Increase Force and Radius gradually; large values can send items far from the interaction.
- Test with a second player in a live room, especially when several physics items are close together.
