Free plug-in for Rhinoceros and Grasshopper - parametric 3D multizone building definition - combined thermal and daylight simulation - TRNSYS18

Trims a mesh at a plane then mirrors it over the plane and stitches the original + mirrored meshes together into one new clean symmetrical mesh.

ThePipe is a platform intended to provide real-time geometry exchange between design and modeling applications.

ParaStaad is a grasshopper plug-in for professional structural analysis & interoperability linking Rhino/Grasshopper with StaadPro.

The AxisVM Export Grasshopper plugin enables creating structural models and exports them to AxisVM structural analysis and design software.

This grasshopper component joins meshes in Rhino with similar materials so that you can reduce the number of meshes in a scene

Sweep made easier and more advanced

Parallel High-Performance Components for Grasshopper