Procedural generation along similar lines has been used successfully for most of the vegetation in Pixar's "Brave", see http://www.cgw.com/Publications/CGW/2012

Procedural generation along similar lines has been used successfully for most of the vegetation in Pixar's "Brave", see http://www.cgw.com/Publications/CGW/2012/Volume-35-Issue-4-June-July-2012/The-Royal-Treatment.aspx http://www.cgw.com/Publications/CGW/2012/Volume-35-Issue-4-J... for some background.