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title: "Channels"
canonical: "https://documentation.chaos.com/space/VREVIT/162037896/Channels"
format: markdown
---
This page provides details on the Channels settings available in V-Ray for Revit. Standard Channels  The Render Channels Container allows you to extract one or more render elements from the final image.    Lighting  – The diffuse direct surface lighting.    Specular  – The surface specular highlights. Self Illumination  – The self-illumination of the surface. GI  – The diffuse surface global illumination. Refraction  – The refractions on the surface. Background  – The image background as set in the project, with the rest of the image rendered as black. Reflection  – The reflections on the surface. Diffuse  – The pure diffuse surface color. Shadows  – The diffuse light that was blocked by other objects. Atmosphere  – Atmospheric effects. Sample Rate  – Shows an image where the pixel brightness is directly proportional to the number of samples taken at this pixel. Bump Normal  – The normals generated by bump maps. DR Bucket  – Allows you to extract an image which shows which bucket was rendered by which machine during distributed rendering. Normals  – The surface normals. Material ID  – Provides a mask for individual objects and materials that are easy to select in compositing software.  Shows each material as a solid unshaded color. Supports anti-aliasing at the edges of objects where they meet other objects or the background. This channel is not supported in RT GPU rendering.  Material ID (no AA)  – Provides a mask for individual objects and materials that are easy to select in compositing software.  Shows each material as a solid unshaded color. Assigns a Material ID to each pixel in the render element Does not support anti-aliasing as each pixel can have only a single Material ID assigned to it.  This channel is supported in RT GPU rendering.  Render ID   –  Creates selection masks based on the node handle of each object. MultiMatte Materials   –  Creates red, green and blue selection masks based on the ID Number set within the V-Ray material.