GHvA3C
Grasshopper plugin to export three.json files that can be loaded by the vA3C viewer.
Implemented by Benjamin Howes, Charlie Portelli and Jonatan Schumacher at the AEC Technology Hackathon in NYC in May 2014.
Installation
Download the latest release of the GHvA3C.zip file and extract the folder titled 'GHvA3C_Plugin' into this directory on your computer:
C:\Users\USERNAME\AppData\Roaming\Grasshopper\Libraries
Usage
Take a look at the sample file contained in the latest release of the GHvA3C.zip file to get you started with the JSON export functionalilty for Grasshopper.
Links
vA3C Viewer
original project description
hackathon recap