@eivindkvedalen It make physically no sense to handle material to others then finit volumes of geometrical shapes. If you have a box, the surfaces of the box can not have different material! They can have different colors, but thats an other story. There fore I think about a seperate "View&quo...

Hi crashfridh, your right, material is now really needed. I have already implemented a key/value property in the Assembly branch. Every Item in the assembly framework will have a key/value map called Material. This will be the container for all material related values. I think we should do a wiki p...