algorithmic modeling for Rhino

Quelea - agent-based design for Grasshopper


Quelea - agent-based design for Grasshopper

Agent-Based Design for Grasshopper
+ A new paradigm for 3D modeling utilizing agents.
+ Assign forces and behaviors to systems of agents to create interactions.
+ Utilize any data to drive the system.
+ Easily debug your system by displaying individual force vectors.
+ High performance, parallel algorithms, spatial data-structures.
+ Write your own custom forces, no coding required.
+ Open source framework for others to build custom behaviors.
+ Boid forces: Cohese, Separate, Align, & View.
+ Contain Agents within Brep, Box, Surface, and Polysurface environments.
+ Forces: Path Follow, Attract, Contain, Surface Flow, Seek, Arrive, Avoid Obstacle, Avoid Unaligned Collision, Sense Image, Sense Point, & more to come.
+ Behaviors: Bounce Contain, Kill Contain, Initial Velocity, Eat, Set Velocity, & more to come.

Future work:

+ Behaviors to drive simulations of people and vehicles.

+ Temporal inputs can change the actions of the system over time.

Download the add-on on Food4Rhino

If you find any bugs or have any feature requests please post them on the GitHub Issue Tracker which will allow everyone to see which bugs are open or closed and allows me to update you when it is fixed.

This is an open source project so if you need custom defined forces or behaviors for your project reach out to me about becoming a committer.

View the project on GitHub

To get started check out this video tutorial on how to set up a basic particle scene. Follow along with this example script.

Learn how to set up a flocking simulation with agents in this video tutorial and example file.

To learn more about the polymorphic type system in the latest release of Quelea see this video explanation.

For questions on how to use Quelea, please create a new Discussion.

Members: 230
Latest Activity: Aug 15

Discussion Forum

Missing Deconstruct System and Deconstruct Quelea

Hello, I have been trying to follow this tutorial …Continue

Started by Bara'a Usama Mar 16.

Quelea Polysurface Environment Problem

Hello Everyone,I have been using quelea for the past month, so I am still familiarizing.I have created a polysurface in rhino which represents my roof.I am trying to use particles to simulate…Continue

Started by Alexandra Kalymniou Nov 22, 2018.

Avoid Obstacle Force 2 Replies

HiI am a  student at University of Tabriz in Iran.I want to use Quelea for my thesis,but i have a problem with Avoid obstacle force as you seen in attach file. Could you help me?Continue

Started by azam ghasemi. Last reply by Alex Fischer Jul 24, 2018.

Point based environment

Hi,Im wondering if anyone knows a way to make agents to move from Point to Point in a Point cloud instead of moving free in an volume based Environment?I guess that would save me lots of computer…Continue

Started by Johan Bernmark Apr 20, 2018.

Comment Wall


You need to be a member of Quelea - agent-based design for Grasshopper to add comments!

Comment by candan erim on April 24, 2015 at 6:53am

Hi Alex,

Thank you!. Okey, of course I will share if I can do it, but I am not sure about that :( I am still trying to do 

Comment by Petar Pejic on April 24, 2015 at 4:19am

Great work,

I would like to raise two questions:

1. is it possible to set some objects for agents to avoid?

2. is it possible to introduce new ways of interaction between agents by user, for example if two agents would go one over the other in 3d space

Comment by Alex Fischer on April 22, 2015 at 7:59pm

Hi Candan,

The original set up video is out of date at this point. Check out this video on the polymorphic type system in quelea instead. You should be able to do what you want, I think attractors and the path following forces will be useful for you. See what happens when you feed the output of the agents paths back into the system as inputs by running multiple simulations. I'm interested to see what you come up with so please share it with the group when you're done!


Comment by candan erim on April 22, 2015 at 12:28am

Hello Alex,
ı am Candan. I am a master student in Architectural Design Computing in İstanbul. I want to try make a agent based simulation for a homework. I watched your basic setup Quelea but I could not make my simulation. Do you know how can I do an agent based simulation. I want to show that people walk in a museum and I want to make a wayfinding design regarding to agent's road. Can you help me about that?

Comment by Alex Fischer on April 6, 2015 at 12:43pm

You can follow the video tutorials on YouTube and download the example files below.

Comment by Christian Schmidts on April 6, 2015 at 10:25am

Same request here, examples would be awesome :)

Comment by dvdrbls on March 31, 2015 at 1:47pm

i just downloaded the new version, do you have any examples available on how the new components work?

awesome job, thanks!

Comment by Mirko V. on March 22, 2015 at 9:03am

Just a test!

Marching cube by agents on surface and fake shadow

Comment by Esmaeil Mottaghi on March 14, 2015 at 5:32pm

Hello Alex, This is a fantastic plugin.Congrats for this :)

sure....that's my pleasure :)

Comment by Alex Fischer on March 14, 2015 at 5:08pm

Awesome! Do you mind if I post this on my website? I'm trying to build up a gallery of projects.


Members (230)





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