Min Width - Controls the minimum length a board can be. Max Width - Controls the maximum width a board can be. Spread - If you have boards with variable length the 'Spread' setting will control the distribution between the two sizes, 0,5 the length is evenly distributed, a low Spread value creates a lot of long boards and only a few short ones, a high spread creates a lot of short boards and only a few long ones. Min Length - Controls the minimum length a board can be. Max Length - Controls the maximum length a board can be.

In the cases where there was a range of IOR values for a specific material I have listed the lower value on the left and the upper range value on the right.Floor Pattern - If you have the full version you can switch between the types of patterns in the '''Floor Pattern' Drop down menu. The next list is the full complete list of hundreds of materials and it is organized alphabetically by material name. The first group contains many commonly used materials. It is for general usage in 3d applications only and not for scientific use. Please do not take this list to be a scientifically accurate list. You should be able to use these values in many different 3d applications - such as NewTek Lightwave 3d, Blender 3d, Autodesk 3DS Max, Autodesk Maya, Maxon Cinema 4D, Next Limit Maxwell, The Foundry Modo and Strata 3d. It obviously helps if you know what the correct IOR value is for the type of surface you are trying to re-create. Many 3d applications these days allow you to input actual IOR values in order to achieve a more accurate representation of surfaces during rendering of your 3d models.

Over the years I have been collecting IOR (Index of Refraction) values I can find for use in 3d rendering applications. Index of Refraction values (IOR) - For use with 3d modeling / rendering and animation applications

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