6 modules - PI-VR GmbH

7.1 Truelight Materials» Subsurface ScatteringTranslucency and subsurface scattering are two completely different methodsof calculating light passing through the back of an object into the observer’s’eye’. While translucency requires far less calculation power, subsurface scatteringdoes offer more possibilities and greater flexibility.» Translucency: The translucency algorithm allows to collect light from the avertedside of an object. It then calculates the distance between the entrance and exitof the ray path and determines the intensity of the translucency. These effectscan be controlled. There are two modes when operating with translucency,depending on what objects to project:• Thin Walled Translucency: This mode is suitable for one-sided objects. Itrequires more calculation time than the solid translucency mode, but whenin doubt, use this mode.• Solid Translucency: The solid translucency is used for solid objects. Pleasenote that unpredictable problems can occur when using this mode onone-sided objects.221