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The Self Illumination Render Element stores the illumination of any self-illuminated materials in the scene. It isolates self-illuminated materials, including V-Ray Mesh Lights, objects with the VRayLightMtl, and any objects with Self-Illumination enabled in their V-Ray material. This render element is useful for brightening or color-correcting self-illuminated materials in the final composite.

For example, the material VRayMtl has a parameter for self-illumination. If this parameter is set to a non-black color value, this render element shows the results of the self-illumination.

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title UI Path: ||Render Setup window|| > Render Elements tab > Add button > VRaySelfIllumination
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This render element is enabled through the Render Elements tab of the Render Setup window in 3ds Max and displays its parameters in a rollout at the bottom of the window:

VRayVFB  –  When enabled, the render element appears in the V-Ray frame buffer.

Deep output – Specifies whether to include this render element in deep images.

Color mapping  – Applies the color mapping options specified in the Color mapping rollout (Render Setup window > V-Ray tab) to this render element. This option is enabled by default.

Multiplier  – Sets the overall intensity of the render element, where 1.0 is the standard multiplier.

Denoise –  Specifies whether to denoise this render element.

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