For the handover to the compositor’s work, the compositor requested some aov channels to facilitate the final adjustments and compositing.
The Crypto-object channel is particularly useful in complex scenes containing multiple objects or elements that need to be processed individually in post. It makes it easy to select and separate specific objects in post-processing without having to manually create complex masks or use other techniques.
The ID channel is a special channel used for rendering that assigns a unique identifier (ID) to each object in the scene.
The Z channel is a channel that records the depth value of each pixel in the scene. It represents the distance from the camera viewpoint to each pixel. During rendering, the Z channel is usually rendered as a greyscale image, with light colours representing positions away from the camera and dark colours representing positions close to the camera.
