PanelingTools plugin by Robert McNeel & Associates is closely integrated with Rhino and Grasshopper, and is widely used by designers, architects, and building prefessionals. It supports intuitive design of paneling concepts as well as help rationalize complex geometry into a format that is suitable for analysis and fabrication. PanelingTools for Grasshopper allows parametric use of attractors to manipulate grids and variable morphing of patterns.
PanelingTools in the Rhino WIP (for Rhino 6 current users)
Windows: Use the "PackageManager" (access through Rhino command-line, then search for PanelingTools to install)
Mac: PanelingTools is shipped for Rhino and Grasshopper (no need to install)
Support forum is in McNeel Discourse:
Free introductory PanelingTools course: (1 hour)
Comprehensive online (free on-demand) course with example files and handouts: (~12 hours)