The Self Illumination Color Channel stores the illumination of any self-illuminated materials in the scene.
Overview
The Self Illumination Color Channel 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
||Node Editor|| > Add > Render Channels > Color Channel > Type > Self Illumination
Common uses
The Self Illumination color channel 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
Self Illumination Render Element with added glow
Tinted Self Illumination Render Element with added glow
Self Illumination with added glow
Color of self-illuminated surface changed in composite
Compositing Formula
Self Illumination + Beauty = Final Image
