A module can declare an instantiation which will be used by default for its 3D representation. The syntax for the instantiation declaration is :

 module A 
   ==> PRODUCTION ; // instantiation declaration

The module instantiation is considered as part of the module. Thus, operations that are applied to the instantiation are applied on the module. (E.g. light absorbed).

import de.grogra.rgg.model.Instantiation;
 
module A ==> Box; 
 
// is equivalent to :
class A extends Node implements de.grogra.xl.modules.Instantiator {
 
        // ... constructor & pattern 	
 
        // instantiation
	public de.grogra.graph.Instantiator getInstantiator(){
		return Instantiation.INSTANTIATOR;
	}
	public void instantiate (Object p) {
		Instantiation producer = (Instantiation) p;
		producer.producer$begin();
		producer.instantiate(new Box());
		producer.producer$end();
	}
 
}