This page gives some basic details about the Reflection Glossiness render element and how it is used in compositing.
Overview
The Reflection Glossiness Render Element stores the image's reflection glossiness as a grayscale image that represents the degree of Reflection Glossiness set for materials in the scene. White areas have the most reflection glossiness, while dark areas have little.
The amount of reflection glossiness for a material is set by its Reflection Glossiness parameter. For example, V-Ray Material (VRayMtl) has a Reflection Glossiness parameter, and and VRayFastSSS2 has a Specular glossiness parameter that goes in the Reflection Glossiness render element.
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.
Attributes
The parameters for this render element appear in the Attribute Editor under Extra V-Ray Attributes.
Enabled – When checked, the render element appears in the V-Ray Virtual Frame Buffer.
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.reflGloss.vrimg).
This render element is not supported with V-Ray GPU rendering.
Note
- Since V-Ray Next, the Reflection Hilight Glossiness option has been removed from the UI as it can no longer be controlled separately from the Reflection Glossiness in VRayMtl. As there will be no difference between the Reflection Hilight Glossiness Render Element and the Reflection Glossiness one, the Reflection Hilight Glossiness Render Element is no longer available.