The Rhino Grasshopper Controller sends all the sensor information from your device directly to Grasshopper. From there you can do with it whatever you want and control your geometry with gravity, rotation, light or touch input...It sends all that data via wifi to your network and uses the gHowl plugin to read it back in.The app requires the following installations on your PC: Rhino www.rhino3d.com Grasshopper plugin for Rhino www.grasshopper3d.com gHowl plugin for Grasshopper www.grasshopper3d.comgroupgHowlThe app was developed for the following versions: Rhino 4.0 SR8 Grasshopper 0.8.0066 gHowl r50but will normally work with newer versions too.Please read the Help section in the app to set up communication between your device and Grasshopper and get a quick start by running the example grasshopper file: www.bernaerdt.beghAndroidInputExample.zipNote: This app is using very devicespecific features and therefore hard to test without real devices, please send me an email describing your device and problem if you encounter one. If the app crashes, please submit the errorreport.Permissions: The permissions are required to read Wifi state, enable Wifi, Read Wifi network state and keep the device alive during sending.