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The Velocity Render Channel is a color or grayscale image that stores velocity information about objects that have moved between the current frame and the next frame. 

 

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Overview

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The Velocity Render Channel stores surface velocity for moving objects in the scene with different colors representing different velocities. Each moving object is rendered with a flat color or gradient. It is commonly used to create mattes for adding motion blur in a composite.

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UI Path: ||out Network|| > V-Ray Render Elements node > V-Ray > Render Channel > Velocity


Parameters

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The parameters for this render channel appear in the Parameters tab under the out Network and within the render channels node.

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Filtering – Applies the image filter to this channel. Image filter settings are in the AA sub-tab of the Sampler tab of the  V-Ray Renderer node.

 

Notes

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  • It is recommended to disable this render channel when rendering with Motion Blur. This channel is generated when 3D motion blur is enabled in V-Ray. However, the pass will also be motion blurred along with the rest of the image. This will make the element not usable in compositing.

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