algorithmic modeling for Rhino


Ladybug Tools

Ladybug and Honeybee are two open source environmental plugins for Grasshopper to help designers and engineers create an environmentally-conscious building design.

Installation Instructions

Download Ladybug and Honeybee

Remove Old Version

Ladybug PrimerHoneybee Primer

Example Files for Ladybug

Example Files for Honeybee

Ladybug on GitHub

Honeybee on GitHub

Use this Reference for your Publications.

Licensed under @license GPL-3.0+

Read more here

Members: 1668
Latest Activity: 1 minute ago


What is Ladybug?

Ladybug is an open source environmental plugin for Grasshopper3D that helps architects and engineers create an environmentally-conscious architectural design.  Ladybug imports standard EnergyPlus Weather files (.EPW) into Grasshopper and provides a variety of 3D interactive graphics to support the decision-making process during the initial stages of design.

What is Honeybee?

Honeybee connects Grasshopper3D to EnergyPlus, Radiance, Daysim and OpenStudio for building energy and daylighting simulation.The Honeybee project intends to make many of the features of these simulation tools available in a parametric way.

You can get started by watching this video:

Here are four separate playlist:

Want to see a full presentation?

Check out this presentation or watch it: Part1Part 2

And this video here:

Discussion Forum

Shading Designer Context not being recognized 5 Replies

Hi All,I am using Ladybug_ShadingDesigner to define overhang for a window. I tried to use shading designer from …Continue

Tags: Context, Designer, Shading, Ladybug

Started by Devang Chauhan. Last reply by Antonello Di Nunzio 1 minute ago.

Glare- Different Views 2 Replies

Hi all,I created different views to show glare analysis, but it just shows rhino's active view in grasshopper's environment. Also, all of the times I set for the analysis has an imperceptible DGP which seems irregular. I wanna know where the problem…Continue

Started by masoome. Last reply by Mostapha Sadeghipour Roudsari 5 hours ago.

HVAC system not applied to zones 8 Replies

Hello everyone, first time I have seen this happen, attaching OSHVACSystem 3 to my zones, simple HB operation, report states HVAC system not applied, replaced with Ideal Air Loads system when IDF is written. Any help appreciated. GH attached.Continue

Tags: Honeybee, HVAC

Started by Arpan Bakshi. Last reply by Chris Mackey 14 hours ago.

Solar reflection for mean radiant temperature 1 Reply

Hi everyone,I have a question regarding the calculation of the mean radiant temperature from the "MicroclimateMap" component.Does the MRT from this component take into account the solar reflected radiation from the surrounding buildings ?Thank you…Continue

Tags: temperature, comfort, radiant, mean, radiation

Started by Mehdi HAMDANI. Last reply by Chris Mackey 14 hours ago.


Hi I have problem with installation OpenFOAM 1612+ , the page for OF-Env is like the image below. I use Windows 10 and first Time which I followed the instruction I downloaded v1706 that was ok and installed correctly but for using Butterfly I…Continue

Started by Ehsan Fouladi on Thursday.

contourmesh component 4 Replies

HiIm looking forward to monitoring a surface temperature contour, within a space not on its walls, what should i do for that? thanks,Continue

Started by Ehsan Fouladi. Last reply by Ehsan Fouladi on Thursday.


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