Default location in Windows
Default location in Mac
When it's unzipped, sub folders of "igeo/library/" is created automatically and the JAR file should be located like below.
2.     Restart Processing.
It's successful if you can see "iGeo" at the menu "Sketch" >
For more information about the installation of a library please see "How to Install a Contributed Library" at processing.org.
Import also OpenGL library by the menu "Sketch" >
Or, simply you can type these two lines in the beginning of the code.
import processing.opengl.*; import igeo.*;
3.     Now you are ready to code. Have fun coding with iGeo.
For examples and tutorials, please see tutorials page.