The Material ID Render Channel isolates objects with specific materials by Material ID for compositing purposes. This render channel provides a mask for individual objects and materials that is easy to select in compositing software.
This render channel either shows each material (by Material ID) as a solid unshaded color or stores the Material IDs as integer values within the EXR format or VRay Image Format file.
The Color (with Anti-Aliasing) method supports antialiasing at the edges of objects where they meet other objects or the background. The Integer (no Anti-Aliasing) method, which assigns a Material ID to each pixel in the render channel, does not support antialiasing as each pixel can have only a single Material ID assigned to it.
More than one Material ID render channel can be used if desired, for example, if you wish to have both solid-shaded color and integer-based render channels for maximum flexibility during compositing.
UI Path:||V-Ray Node Editor|| >World>Render Channels>Matte>V-Ray Material ID
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See the Render Channels page to find out where you can find these properties.
Channel Name– Customizable name for the render channel.
Enable Deep Output–Specifies whether to include this render channel 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.
Derive Raw Channels – Generates data in the raw channels by combining the respective color and the filter color channels.
Vfb Color Corrections– Applies the post-render color adjustments made from the VFB.
Denoise – Enables the render channel's denoising, provided the Denoiser is enabled.
