The Blender Nerd with this cool little multi-part tutorial describing how to create a hexagonal landscape scene in Blender 3D with a clever DUPLIVERTS trick.
Hexagonal Landscape – Part 1 – Blender Tutorial from Blender Nerd on Vimeo.
Hexagonal Landscape – Part 2 – Blender Tutorial from Blender Nerd on Vimeo.
Hexagonal Landscape – Part 3 from Blender Nerd on Vimeo.