A short N-step list:
- start Rhino
- add a
Cycles XMLmaterial in the material editor - give it a useful name - add an object, assign the
Cycles XMLmaterial to it - switch your view of choice to
Raytraced - start Grasshopper
- add an Output node
- add a Diffuse BSDF node
- add a colour swatch - give it a dandy colour of your chosing
- wire swatch to Diffuse BSDF colour input
- wire Diffuse BSDF output to Output node Surface input
- Right-click Output node icon, select the name of your
Cycles XMLmaterial - force recalculation of your shader solution.
- admire your handy work in the
Raytracedviewport.
edit:
You use the custom display component when you want to assign materials to GH created geometry. You’ll still have to add that Cycles XML material in Rhino material editor, and hook it up to the Output node before you can chose it in the custom display component.