6 modules - PI-VR GmbH

8 MATERIALS REFERENCE172· Repeat UV: Sets the number of repetitions for the Uvs.· Offset UV: Sets the offset for the UVs.· Rotate: Rotates the UVs.· Anisotropy: Sets the texture filter quality for the image texture. 1 is thelowest quality. 16 is the highest quality.» Subsurface Scattering: Incoming light on the averted side of an object is refractedin all directions. With this feature it is possible to simulate the behavior of waxor other translucent materials. There are two modes available:• Single Scattering: The single scattering mode allows light to bounce onceinside a material before it is reflected to the outside. This mode is lessaccurate but requires less calculation time than multiple scattering.• Multiple Scattering: The multiple scattering mode allows light to bounceseveral times inside a material before it is reflected to the outside. This modeis more accurate but requires more calculation time than single scattering.• Attenuation: The distance that the light travels inside the medium is dependingon the attenuation value. The higher the value, the more light is absorbedinside the medium.• Asymmetry: This value describes the directional characteristic of incominglight, and its weighted behavior. The value -1 defines that light is completelydistributed to the averted side along the incoming light path. The value 1defines that light is completely distributed along the incoming light path. Thevalue 0 describes a homogeneous distribution of light inside the medium.• Select Medium: The medium presets offer you a large collection of commonindex of refraction values to choose from.• Index of refraction: The refraction index defines the ’optical density’ andtherefore the way light is refracted when passing differently dense materials.• Use Texture: Loads an image texture for the diffuse color channel. Uses theimage as pattern on the surfaces.