Messieurs !
If you like to do a wooden item with styrene parts ( ex: Evergreen) you may use a scriber to show the planks; the rough
grain however is easier to be done with sanding paper.
With the help of sanding paper you may control the woodgrain effect.
Even fine structures may be possible - the rough ones are easy done.
When painting this surface the darker colour flows into the grain - like it is with wheathering panel lines.
If it will be a good idea on an Albatross fuselage ?...
viele Grüße, Gunther