This page gives some basic details about the Coat Filter Render Element and how it is used in compositing.
Overview
The Coat Filter Render Element is analogous to the Reflection Filter Render Element.
The Coat Filter RE stores reflection information calculated from the V-Ray Material Coat Layer. Surfaces with the Coat Amount parameter set to 0 contain no information in the render pass and therefore render as black.
The Coat Filter RE shows how much of the reflection of objects reflecting in the scene should come through in the composite. In other words, the filter defines the strength of the reflection.
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.
