OctaneRender™ has two types of mediums: AbsorptionDefines how fast light is absorbed while passing through a medium. and ScatteringDefines how fast light gets scattered when traveling through the medium..
TIP: For an overview on how MediumsThe behavior of light inside a surface volume described by scatter, absorption, and transmission characteristics. work, refer to the topic of the OctaneRender™ Standalone Edition User Manual.