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Table of Contents

This page gives some basic details about the Raw Refraction Filter Render Element and how it is used in compositing.

Overview

The Raw Refraction Filter Render Element is similar to the Refraction Filter Render Element, except it is not affected by Fresnel falloff. The result is a solid mask showing the areas of refraction.

To properly calculate the Raw Refraction Filter Render Element, the Refraction Render Element must also be added to the list of render elements being calculated during the rendering process to properly determine all the refraction information in the scene.

UI Path: ||Display Render Settings button|| > Render Elements tab > Raw Refraction 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.

 

Parameters

The parameters for this render element appear in the Attribute Editor under Extra V-Ray Attributes.

Enabled – 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.

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

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

 

 


Usage Notes

The Raw Refraction Filter Render Element is useful when a precise mask is needed for refractive objects. Unlike the Refraction Filter Render Element, there is no need to clip or readjust values when pure black or white is required for the composite.

 

Notes

  • To properly calculate the refraction information in the Raw Refraction Filter, Refraction Filter, and Raw Refraction Render Elements, the Refraction Render Element must also be rendered at the same time, even if it's not going to be used in the compositing process. Doing so enables all the refraction information to be included in the rendering calculations.
  • This render element is not supported with V-Ray GPU rendering.