VRayRoughness

This page contains information about the Roughness Render Element.

Overview

The Roughness Render Element bakes the Reflection Roughness values in a scene, creating a grayscale image. To enable Reflection Roughness on a V-Ray Material, its BRDF needs to be set to Use roughness, then the Reflection Glossiness option turns into Reflection Roughness. Values between 0 and 1 can be entered, the closer to 1 - the whiter the render and the closer to 0 - the darker the render.

Keep in mind that in order to have Reflection Roughness working, you need to have a Reflection value higher than 0. Otherwise, Reflection Roughness renders incorrectly.

How to Add and enable VRayRoughness

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UI Path: ||Render Setup window|| > Render Elements tab > Add button > VRayRoughness

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To turn on Reflection Roughness in a V-Ray Material, go to the BRDF rollout and enable Use Roughness.

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Parameters

This render element is enabled through the Render Elements tab of the Render Setup window in 3ds Max and displays its parameters in a rollout at the bottom of the window:

VRayVFB – When enabled, the render element appears in the V-Ray Virtual Frame Buffer.

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

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