This page provides information about the Material ID Render Element in V-Ray for Cinema 4D.
Overview
The Material ID Render Element provides a mask for individual objects and materials that is easy to select in compositing software.
This render element shows solid unshaded color masks based on the selected Material ID color values. The Material ID can be set using the Material ID option, found in the Options tab of each type of V-Ray material.
UI Path: ||V-Ray|| > Render Elements > Material ID
How to add a render element to a scene
Properties
Enable Deep Output – Specifies whether to include this render element 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 element's denoising, provided the Denoiser render element is present.
Example Use Case
The white opaque chairs are isolated using Material ID. A Constant layer is added to adjust their color. See the render before and after.