In this recipe, we will create the classic white expanded polystyrene material:
Now we are going to create the material:
Select Suzanne (or whatever mesh you are going to use) and click on New in the Material window under the Properties panel or in the Node Editor header. Rename the material
Plastic_expanded_polystyrene
.Switch the Diffuse shader with a Mix Shader node. In the first Shader slot select a Diffuse BSDF shader, in the second Shader slot select a Glossy BSDF.
Set the Diffuse shader Color and the Glossy shader Color to pure white; set the Roughness value of the Glossy shader to
0.600
. Add a Fresnel node (press Shift + A and then go to Input | Fresnel) and connect its output to the Fac input socket of the Mix Shader node; set the IOR value to1.550
.Add a Voronoi Texture node (press Shift + A and go to Texture | Voronoi Texture), then add a Texture Coordinate node...