“…From around 2005 McNeel's Grasshopper™ plugin (initially known as 'Explicit History' to their surface modelling tool Rhinoceros™, facilitated further advantages to users who could now set up rule-based, 'flexible' geometry models to interact with environmental analysis functions (Rutten, 2010). Grasshopper™ offers users the option to apply Genetic Algorithms in for form-finding and optimisation of bespoke building performance (Caldera, Gonzalo and Loyola, 2013). The rule-based nature of parametric geometry definitions lends itself for the fast turnout of design variations in a (numerically) controlled setting.…”