This page provides information about the ZDepth Render Element in V-Ray for Cinema 4D.
The Z-Depth Render Element is a grayscale image that renders each pixel based on its distance from the camera in the view. It provides information about each object's distance from the camera in the current view. Each pixel representing the object is evaluated for distance individually; different pixels for the same object can have different grayscale values. You can adjust this render channel so that objects (or portions of objects) closest to the camera appear as black, while those furthest away appear white or vice versa.
The most common usage of the Z-Depth Render Element is as a control for depth of field in the composite. Depth of field can be challenging to do correctly, requiring many tweaks and re-renders; using the Z-Depth Render Element in a composite is usually much faster, and allows easier and faster adjustment than trying to get it exactly right within the render.
UI Path: ||V-Ray|| > Render Elements > ZDepth
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