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title: "Refraction"
canonical: "https://documentation.chaos.com/space/VBLD/117637887/Refraction"
format: markdown
---
This page provides information about the Refraction render channel in V-Ray for Blender. Overview The Refraction Render Channel stores refraction information calculated from materials – such as glass or water – that refract objects behind them in the camera's view. This means the brightness, coloration, etc., of the refractions can be adjusted without the need to re-render. Any material in a scene with a value set for its Refraction parameter generates refraction information that can be seen in this render channel. A surface with no refraction values set in its material(s) contains no information in the render channel and, therefore, renders black. The Refraction Render Channel is a key component in the main  Beauty render  and can easily be used to control the refractions in the Beauty composite. The Refraction Render Channel itself is already a composite of the  V-Ray Raw Refraction Render Channel  multiplied by the  V-Ray Refraction Filter Render Channel . When finer control over refractions is needed in the composite, add these additional two channels to the output along with the V-Ray Refraction Render Channel. UI Path:  ||V-Ray Node Editor|| >  World  >  Render Channels  >  Beauty  >  V-Ray Refraction Properties See the  Render Channels  page to find out where you can find these properties. Channel Name  – Customizable name for the render channel. Enable Deep Output  –  Specifies whether to include this render channel in deep images. Color Mapping  –  Consider For Anti-Aliasing  – 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 channel's denoising, provided the  Denoiser  is enabled.