Adding bumpy streaks (woodgrain) to an STL file?

Is it possible to Add bumpy streaks (woodgrain) to an STL file ?
If Not is it possible to make an object itself such ?

Hi -

Yes. Select the object and pick the Displacement icon in the Properties panel.
-wim

I selected the polysurface, rather than the mesh to get it to apply, BUT the texture is very large in scale, instead of small bumps.
Is there any way to scale the texture ?

Hi -

There are more settings for the texture when you click on that pencil next to the leather picture.
-wim

Displacement HELP needed - Instruction please - Rhino / Rhino for Windows - McNeel Forum

Same topic, could be merged