This page gives information about the Self Illumination Render Element.


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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 will show the results of the self-illumination.


UI Path:

||Render Setup window||  > Render Elements  tab  > Add  button  > VRaySelfIllumination


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 of the V-Ray tab in the Render Setup window 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.

Common Uses

The Self Illumination Render Element is useful for changing the appearance of self-illuminated surfaces after rendering in compositing or image editing software. Below are two examples of its use.



Self Illumination Render Element

Original Beauty Composite





Color of self-illuminated surface changed in composite

Intensity of self-illuminated surface reduced in composite



Compositing Formula

The VRaySelfIllumination Render Element is added to the Beauty render to form the final image.




  • This element contains only the light geometry itself, not the light emitted from it. Lighting information is contained in the Lighting Render Elements.