![]() It retains this color throughout its travel through the medium and then drops in level again at the exit surface.įor simple glass objects, this is quite sufficient. In the above illustration, the ray enters from the left, and at the entry surface it drops in level and gets slightly darker (the graph illustrates the level schematically). Linoleum flooring can use the same settings but with a different texture and bump map, and probably with slightly lower Reflectivity and Reflection Glossiness values.ĭiagram for glass with color changes at the surface If bumpiness should appear only in the varnish layer, turn on Special Purpose Maps rollout Do Not Apply Bumps To The Diffuse Shading. ![]() For extremely blurry surfaces or surfaces with very weak reflections, try turning on Highlights+FG Only.Ī typical wooden floor could use a Reflection Glossiness of 0.5, Reflection Glossy Samples of 16, Reflectivity of 0.75, a nice wood texture for Diffuse Color, and perhaps a slight bump map.Again, for improved performance, turn on Fast (Interpolate). For moderately blurry surfaces, set an even lower Reflection Glossiness value and maybe increase the Reflection Glossy Samples value.This shoots only one mirror ray for reflections, but if the reflectiosn are weak, often the viewer can not tell. For slightly blurry but also very weak reflections, you can “cheat” by applying a lower Reflection Glossiness value for broader highlights while setting Reflection Glossy Samples to 0.If performance becomes an issue, try turning on Fast (Interpolate). For slightly blurry but strong reflections, set a lower Reflection Glossiness value.For clear, fairly strong reflections, keep Reflection Glossiness at 1.0.How glossy is the material? Are reflections clear or blurry? Are they strong or weak? Start out with 0-degree reflectivity of 0.2, 90 degree reflectivity of 1.0, and apply a suitable texture map to the Diffuse Color. These are the kind of “hybrid” materials you might require for architectural renderings varnished wood, linoleum, and so on.įor these materials, set BRDF to Custom Reflectivity Function that is, you'll define a custom BRDF curve. General Rules of Thumb for Glossy Wood, Flooring, and So On
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