Page History
This page provides information on the MultiMatte Render Element which creates red, green, and blue selection masks based on an object's Object ID or Material ID.
Overview
...
Section | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
...
Attributes
...
Section | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
...
Common Uses
...
The MultiMatte Render Element is useful for isolating geometry or material in a scene. While other matte render elements perform similar tasks, Multimatte is often quicker to use in compositing software because it can be made to include only pure red, green, or blue channels to represent objects or materials in the scene. Compositing software often has a feature for easily selecting the red, green, or blue channels in an image for use as mattes.
In this example, we set the Red ID to match the ceiling's object ID, the Green ID to match the stone fence's object ID, and the Blue ID to match the floor's object ID. Thus, masks are created in compositing to modify the isolated geometries. See the render before and after compositing.
Before after | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
| ||||||||||
|