As part of your Octane license you have access to hundreds of community created materials. You can download these materials for use within the OctaneRender for Carrara plugin.
From the Settings window select the Octane Live DB tab.
From here you have the option of downloading any of the materials that have been published to the LiveDB database.
MaterialsA set of attributes or parameters that describe surface characteristics. are downloaded directly into your current scene and will show up under the 'Shaders' tab in the Assembly and MaterialThe representation of the surface or volume properties of an object. Rooms. Once you have downloaded a material to your scene you can apply the material from within Carrara (with full undo support) or you can apply a material using the Octane viewport (undo is not supported).
To apply a material using the Octane Viewport you need to first download the material and then click Apply. When you are in apply mode you cursor will switch to a pen. Move the pen over the object you want to apply the material to (in the Octane Viewport) and left-click. To get out of Apply mode, click cancel on the LiveDB material or press the Escape key.
WARNING: You cannot UNDO materials applied from the Octane Viewport. If you want to be able to undo then apply the material using the native Carrara mechanisms.