It is a Grasshopper 3d defintion / script for parametric brick wall design/ facade with a sample surface Rhino model. Definition is to make a parametric facade in Grasshopper in Rhino that you can alter by changing number sliders in the script. Check out the video at https://youtu.be/Rbj0zTA8LrM#grasshoppertutorial #parametric #facade #parametric #design #grasshopper #parametricdesign #tutorial #parametricarchitecture #architecture #definition #grasshopper3d #rhinotutorial #architutors #rhino #3d