Reaction-diffusion
Coral, spots and stripes that grow on their own.
- Kind
- Layer · Simulations
- Script name
turing- Cost to draw
- Very heavy
- Reacts to
- the pointer

Reaction
| Setting | Kind | Starts at | Range and notes |
|---|---|---|---|
Growspreset | choice | Coral | Coral, Spots, Stripes, Maze, Worms, My feed and kill |
Feedfeed | number | 0.055 | 0.01 to 0.1 |
Killkill | number | 0.062 | 0.03 to 0.075 |
Speedspeed | number | 1× | 0.25 to 4× |
Pattern sizesize | number | 1× | 0.5 to 4× |
Colourscolours | gradient | #08090aff → #0b2a3aff → #3fd0c9ff → #7ce695ff | – |
Starts fromstart | choice | Scattered drops | Scattered drops, The middle, Rings |
The pointer seeds itpointer | on or off | on | – |
Starting patternseed | seed | 1 | – |
From a script
Every setting above can be changed by the scene's logic, by its key. Say the layer is called Reaction-diffusion:
scene.set("Reaction-diffusion", "feed", 0.1);scene.animate("Reaction-diffusion", "opacity", 0.5, 2);import { scene } from "motion";scene.set("Reaction-diffusion", "feed", 0.1);scene.animate("Reaction-diffusion", "opacity", 0.5, 2);◆On Scene Start
ƒSet Layer SettingTarget is Layer
TargetReaction-diffusion
Parameter Namefeed
Parameter Value0.1
What every layer has
Besides its own settings, every layer has its opacity, blend, placement, quick effects and an effects stack. They're listed once, on the layers page.
Notes from the community
Written by creators and checked by the docs' editors. Not part of Motion's official reference.