FAQ and Technical Information Changes in 3.0: What changed in Processing 3.0 from 2.x Changes: What changed between 1.x and 2.x Common Errors: Frequent error messages explained Troubleshooting: Have a problem? Start here. Serial Issues OpenGL Issues Advanced OpenGL: Using low-level OpenGL functions in Processing, and other advanced topics Supported Platforms: Notes from the PRTAQAC Command Line: Y