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The Rougness parameter The Reflection color parameter The Reflection glossiness parameter The Energy preservation mode The Fresnel option The Anisotropy parameter The Anisotropy rotation parameter The Refraction color parameter The Refraction glossiness parameter The Refraction IOR parameter The Refraction depth parameter The refraction Exit color parameter The Fog color parameter The Fog multiplier parameter The BRDF type The Roughness parameter This example demonstrates the effect of the Roughness parameter. Note how as the Roughness increases, the materials appears more "flat" and dusty.Exporting to VRML and X3D for color printing
With the arrival of the “Full Color Sandstone” material, Shapeways now supports color information in your models. There are two ways to apply color: as a 'per face' material, or as a UV texture map. 'Per face' materials are easier to work with, but will give you less detail. UV texture maps can be very detailed, but require the careful mapping of the texture map to your object. To use 'per face' materials, simply apply material colors in your 3D application and export to VRML2.
These are Rheotomic Surfaces – from the Greek Rheo – flow and
Rheotomic Surfaces « Space Symmetry Structure
A minimal surface is a surface that is locally area-minimizing, that is, a small piece has the smallest possible area for a surface spanning the boundary of that piece. Soap films are minimal surfaces. Minimal surfaces necessarily have zero mean curvature, i.e. the sum of the principal curvatures at each point is zero. Particularly fascinating are minimal surfaces that have a crystalline structure, in the sense of repeating themselves in three dimensions, in other words being triply periodic.
Triply Periodic Minimal Surfaces
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