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The Specular Render Element is an image that stores specular reflection (basically put, highlight) information calculated from the material's reflection value in the scene. Specular reflection is defined as the reflection of light from a surface in a single particular reflection, as opposed to a diffuse reflection, which is reflected at many angles.

The brighter the area, the more highlight reflection the object exhibits in the render. If the Reflection Color parameter of a material is colored, the Specular highlights will be colored.

This render channel can be used to enhance specular reflections; see the example.

 

UI Path: ||V-Ray|| > Render Elements > Specular

(How to add a render element to a scene)

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Enable 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 Settings window to this render element.

Consider for Aa – When enabled, anti-aliasing is used where possible.

Filtering –  Applies an image filter to this channel.

Vfb Color Corrections – Applies the post-render color adjustments made from the VFB.

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

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In this example, the specular reflections of the foliage are enhanced after rendering using the Specular Render Element. The greenery is selected using a Cryptomatte mask, and its specular reflections are boosted and tinted.

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