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This page provides information on the Coat Filter Render Element.


The Coat Filter Render element is analogous to the Reflection Filter Render Element.

The Coat Filter Render Element stores reflection information calculated from the VRayMtl Coat Layer. Surfaces with the Coat Amount parameter set to 0 will contain no information in the render pass and will therefore render as black.

While the  Raw Coat Reflection Render Element gives the full reflection of objects reflecting in the scene, Coat Filter RE shows how much of that reflection should come through in the composite. In other words, the filter defines the strength of the reflection, while the raw reflection channel defines what is being reflected in the image. When these two elements are multiplied, the true level of reflection is given and produces Coat Reflection RE. Using these component parts of the reflection, you can better fine tune the reflection in your final composite.

UI Path: ||Display Render Settings button|| > Render Elements tab > Coat Filter

To use render elements, select from the Available render elements column and click the Add button to add the passes you wish to generate at render time. When you render the scene, the added render elements listed in the column on the right, will also render, which can be viewed from the VFB window's channel drop-down menu.

For more information on the parameters on this dialog, see the Render Elements tab page.


Enabled When enabled, the render element appears in the VFB.

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

Filename suffix – The text added to the end of the rendered file, when saved as a separate file (e.g. myrender.SheenFilter.vrimg).

Apply color mapping – Applies the color mapping options specified in the Color mapping rollout of the VRay tab in the Render Settings window to this render element. This option is enabled by default.

Denoise – Enables the render element's denoising, provided the Denoiser render element is present.