Use the following steps to create a Glossy Thin-film:
#Maxwell render materials layers how to
Now, it’s time to understand how to make it look glossy. In some cases, you would normally disable the base BSDF but we need it stay pure black for this application. This is a typical Shiny Thin-film coating over pure black base shown in Figure 2. Set Coating Thickness to 160 nm, Coating Nd to 1,8 and turn on Force Fresnel for the Coating as shown in Figure 1.Right click on BSDF and select Add Coating.Set both Reflectance-0 and Reflectance-90 to pure black.Create a new Custom material made of a single layer and a single BSDF.Use the following steps to create a Shiny Thin-film: This post presents an advanced material composition technique by blending a rough thin-film interference into the final look. At this point you need the help of fine bump mapping instead of BSDF roughness which has no effect on perturbation of surface normals. Whilst it’s true that a thin-film is always perfectly specular, the final look can become rough as it follows the shape of underlying surface microstructure. Most of the time the presence of a thin-film is very subtle, but it is essential for achieving a highly realistic look.Ĭoating doesn’t have a roughness setting and so logically you might think it makes no sense using it on glossy/rough surfaces unless you need a polished look. Up until now, we haven’t seen much usage of the Coating component other than making soap bubbles or simulating the coloration of shiny ornaments.Ĭoating plays a key role in photorealism for simulating everyday materials such as leather, plastics and more. This post is about thin-film layers, and how you can use them to create extreme realism with your materials.Īs you may already know, Maxwell Render is capable of simulating Thin-film Interference using the Coating component in the material composition. Yet another X-Factor: Thin-film Interference
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