The Lighting Render Element stores direct lighting information from lights in the scene and materials as lit by the scene's lighting. This render element can be used to brighten, lessen, or tint just the direct lighting in a composite without affecting indirect light or reflections, for example.
The vrayRE_Lighting pass is the same as Raw Light multiplied by vrayRE_Diffuse. vrayRE_Lighting is provided as a convenience to the compositor.
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Specific objects can be excluded from this Render Element by disabling the Generate Render Elements option in the VRayObjectProperties node for the selected object(s).
To use render elements, select from the Available render elements column and click the Add button to add the passes you wish to generate at render time. When you render the scene, the added render elements listed in the column on the right, will also render, which can be viewed from the VFB window's channel drop-down menu.
For more information on the parameters on this dialog, see the Render Elements tab page.
