The Output AOV node connects to the Output AOV Group node which is then connected to the Output AOV Group pin on a Output AOV Group Output node (figure 1). The Output AOV node is used to assemble results of the AOVs composited using Render AOV nodes (figure 1).

Figure 1: The Output AOV Nodes used to composite a Bloom Effect with Beauty AOV and Glare Effect with Environment AOV

 

Multiple layers can be added via the Add Layer button. Layers can be removed with the Remove Layer button. When a layer is added, a new input pin will appear at the top of the current layer pin(s). Each set of Output AOV nodes are available for viewing in the Render Viewport when they are connected together using the Output AOV Group node (figure 1).