---
title: "Bounces"
description: "Lesson 5.6 of Creator Terminal's lesson films (Particles): Make particles bounce off the floor and a rectangle, then control how they settle."
canonical: "https://terminal.lottiefiles.com/bounces/"
last_updated: 2026-10-27
---

# Bounces

> Lesson 5.6 of Creator Terminal's lesson films (Particles): Make particles bounce off the floor and a rectangle, then control how they settle.

- The film (1:39): https://terminal.lottiefiles.com/media/5.6-bounces/fe7e1e536a23/5.6-bounces.mp4
- Vertical cut: https://terminal.lottiefiles.com/media/5.6-bounces/87dae1441a6a/5.6-bounces-vertical.mp4
- Captions: https://terminal.lottiefiles.com/media/5.6-bounces/3e81788fccb7/5.6-bounces.vtt
- The page: https://terminal.lottiefiles.com/bounces/

## In this lesson

### Falling through (0:08)

These dots need a surface. No earlier lesson needed. Press zero, then space. The dots fall through our rectangle. Press space to pause.

### Add collisions (0:19)

So let's give the dots something to hit. Press colon. Type Falling dots, then Enter to select its emitter. In the rail, click more, add collisions, then more again. The floor is already on.

### Bounce height (0:33)

Restitution is the share of impact speed kept on the rebound. Set the first value to zero point eight, and the second to match. Higher values give higher bounces. Press zero, then space. Watch them bounce. Press space to pause.

### Surface grip (0:48)

And Friction slows movement along a surface. Set the first value to zero point one, and the second to match. A low value allows sliding.

### Pick a surface (0:58)

Let's add a collider, a layer particles bounce off. Click Platform. Now press zero, then space. Watch them rebound from the rectangle. Press space to pause.

### Limit the bounces (1:09)

Now let's stop the bouncing after one rebound. Back in the rail, set Bounces to one. That's the maximum per particle. On its next landing, it settles on the rectangle.

### Bounce and settle (1:20)

Let's watch them come to rest. Press zero, then space. Let them land. Press space to pause. The oldest dots rest on the platform.