UI Path: ||Render Setup window|| > Render Elements tab ...
||Render Setup window||> Render Elements tab > Addbutton
> Add button > VRayLightMix
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VrayVFB – When enabled, the render element appears in New VFB.
Group by – Specifies how to group the lightning information:
Instanced lights– If there are instanced lights in the scene, each group has its separate channel. All unique lights in the scene are stored in their individual render channels; Individual lights – Lighting information of each light is stored in a separate channel; Grouped lights – Lighting information of each group of lights is placed in a separate channel. All lights that are not attached to any group in the scene are stored in their individual render channels; Layers – Lighting information for each layer is stored in a separate channel; Manual light selects – Render channels are created based on the existing Light Select render elements in the scene. Lights that are not specified there, are collected in single render channel called Rest.
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Each grouping mode automatically creates Environment and Self Illumination render elements. The information from the light emitting materials is stored in the Self Illumination channel, while the Environment info is stored in the Environment channel.
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VRayLightMix requires Consistent lighting elements and will internally switch switches render elements calculation to this mode even if the option (placed in the Global Switches tab) is disabled in the UI.