The Custom AOVs are user-defined AOVs to suit a specific purpose. Although there are many factory preset AOVs in Octane, there is no way to account for all possible AOV needs, so Custom AOVs are available for that purpose. Custom AOVs are a container that can be used to capture certain aspects of a scene. 


Custom AOV - A generic RGB container AOV that can be used for a variety of different purposes. Individual color channels can also be specified. and there is an option to control whether it only records hits of camera/primary rays or if it should also record hits after specular reflections and/or refractions.

Global Texture AOV - Allows for the use of procedural or image texture nodes (including OSL shaders) to be rendered across the entire scene as info passes. This can act as a scene-wide overlay, custom mask, or data generator that can be blended into final composites.