Render LayersRender layers allow users to separate their scene geometry into parts, where one part is meant to be visible and the rest of the other parts “capture” the side effects of the visible geometry. The layers allow different objects to be rendered into separate images where, in turn, some normal render passes may be applied. The Render layers are meant for compositing and not to hide parts of the scene. let you separate their scene geometry into parts, where one part is meant to be visible and the rest of the other parts capture the side effects of the visible geometry on it. The layers allow different objects to render into separate images where Octane can apply some normal AOVs. The rendered images from each layer can recombine in compositing software.
Assign an Octane Layer ID to the Objects in the scene.
Figure 1: The Layer ID option in an Object’s Attribute Editor
Create a new Render Layer in the Render Settings window (figure 2).
Figure 2: Creating a new Render Layer
When the Object Layer IDs are set for each object, Octane will render separate passes with only those objects that share an ID.
Figure 3: Setting the Active Layer ID