The Scene Elements group of rendering attributes specifies which scene objects will be used for rendering. A particular render can include only a subset of the scene’s objects and lights. This could be useful to render the scene in layers (foreground, background, ...) for later compositing. The attributes in tthis section control what objects to include in this render. These settings are valid regardless of the Render Mode selected in the Render Engine group of attributes. Only the scene elements that are part of the selected sets will end up being output to an image.
The Scene Elements group
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