The MatID MaterialID, ObjectID and ObjectID TriangleID channels output multicolored material / , object or triangle silhouettes. This is useful for easier selections in a 2D image editor when you want to edit only specific materials in the rendered image.
Material ID
You can change the material ID color that will be assigned to a particular material from the "Material Properties" row in the Material Editor in Studio/MXED. Please see the documentation for your plugin to find out where this parameter is located.
Object ID
You can change the Object ID color that will be assigned to a particular object from the Object Parameters panel in Maxwell Studio - "Appearance" section.
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