Overlapped Spiral Pattern Ceiling

This video is a tutorial of making Overlapped Spiral Pattern Ceiling Interior in Rhino Grasshopper. Grasshopper script contains 'Rectangle', 'Scale', 'Boundary Surfaces', 'Populate Geometry', 'Polar Array', 'Maelstrom', 'Surface Split', 'Deconstruct Brep', 'Join Curves', 'Offset', 'Cull Pattern' Components.