The Self Illumination Render Element stores the illumination of any self-illuminated materials in the scene.
Overview
The Self Illumination Render Element isolates self-illuminated materials, including V-Ray Mesh Lights, objects with the V-Ray BRDFLight, 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 V-Ray Material 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.
UI Path: ||out Network|| > V-Ray Render Elements node > V-Ray > Render Channel > V-Ray Color Channel (RE) > Self Illumination
Attributes
The parameters for this render element appear in the V-Ray RenderChannelColor render channels node.
Deep Output – Specifies whether to include this render element in deep images.
Color Mapping – When enabled, the Color Mapping options in the render settings are applied to the current render channel.
Consider For AA – When enabled, anti-aliasing is used where possible.
Filtering – Applies the image filter to this channel. Image filter settings are in the Image Sampler tab of the Sampler tab of the V-Ray Renderer node.
Denoise – Enables the render element's denoising, provided the V-Ray Denoiser render element is present.
Derive Raw Channels – Generates data in the raw channels by combining the respective color and the filter color channels.
VFB Color Corrections – Applies the post render color adjustments made from the VFB.
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
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
Notes
- This element contains only the light geometry itself, not the light emitted from it. Lighting information is contained in the Lighting Render Elements.