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Boids Flocking
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Boids Flocking
LIFE_NATUREStudio
A real-time boids flocking simulator with adjustable separation, alignment, cohesion, and predator avoidance.
UpdatedJan 2025
ExportsPNG
Runs onAny browser
PriceFree
Overview
A dynamic life & nature playground.
Boids Flocking runs the classic Reynolds boids algorithm. Each bird follows three local rules — separation (avoid crowding), alignment (match neighbor headings), and cohesion (steer toward the local center) — and the flocking pattern emerges from those rules alone.
Adjust the weight of each rule, plus optional predator avoidance, in the sidebar to shift the flock from tight formations to loose swarms.
Features
Built for life & nature-scale experimentation.
01 / Spotlight
Reynolds boids algorithm
separation, alignment, cohesion, plus optional predator.
02
Each rule's weight
Is independently tunable; count and speed sliders control population and pace.
03
Rendered with a
Fading trail; click to add a predator and watch the flock scatter.
How to use
Workflow
Steps take about a minute.
Use the sidebar to dial in the count, speed, and weights of separation, alignment, and cohesion. Click anywhere to drop a temporary predator; the flock will flee and regroup. Export PNG from the toolbar.
Use cases
What people use it for
Demonstrating the Reynolds boids algorithm and emergent flockingTeaching AI and swarm behavior in biology or computer scienceCreating nature-inspired motion visuals for videos or artGenerating flocking screenshots for presentations
FAQ
Common questions
How many boids can it handle?+
The sim runs comfortably in the low hundreds of boids on a typical laptop. Beyond a few thousand the per-frame O(n²) neighbor search starts to slow down.
Why does my flock form a single tight cluster?+
High cohesion with low separation tends to clump. Lower cohesion or raise separation to spread the flock out, and add a predator to break up clusters.
Related
More life & nature apps
Boids Flocking
LIFE_NATUREStudio
A real-time boids flocking simulator with adjustable separation, alignment, cohesion, and predator avoidance.
UpdatedJan 2025
ExportsPNG
Runs onAny browser
PriceFree
Overview
A dynamic life & nature playground.
Boids Flocking runs the classic Reynolds boids algorithm. Each bird follows three local rules — separation (avoid crowding), alignment (match neighbor headings), and cohesion (steer toward the local center) — and the flocking pattern emerges from those rules alone.
Adjust the weight of each rule, plus optional predator avoidance, in the sidebar to shift the flock from tight formations to loose swarms.
Features
Built for life & nature-scale experimentation.
01 / Spotlight
Reynolds boids algorithm
separation, alignment, cohesion, plus optional predator.
02
Each rule's weight
Is independently tunable; count and speed sliders control population and pace.
03
Rendered with a
Fading trail; click to add a predator and watch the flock scatter.
How to use
Workflow
Steps take about a minute.
Use the sidebar to dial in the count, speed, and weights of separation, alignment, and cohesion. Click anywhere to drop a temporary predator; the flock will flee and regroup. Export PNG from the toolbar.
Use cases
What people use it for
Demonstrating the Reynolds boids algorithm and emergent flockingTeaching AI and swarm behavior in biology or computer scienceCreating nature-inspired motion visuals for videos or artGenerating flocking screenshots for presentations
FAQ
Common questions
How many boids can it handle?+
The sim runs comfortably in the low hundreds of boids on a typical laptop. Beyond a few thousand the per-frame O(n²) neighbor search starts to slow down.
Why does my flock form a single tight cluster?+
High cohesion with low separation tends to clump. Lower cohesion or raise separation to spread the flock out, and add a predator to break up clusters.
Related