Render Channels

This tab is used when an additional image, other than a standard rendering, is required. This is mostly used when you intend to do postprocessing using an external image editing program.
Available channels are: Color (standard rendering), Normal, Depth, Alpha, Object ID, Material ID, and channels specific to Adaptive (BSD) rendering mode (Direct, Ambient Occlusion, Global Illumination, Subsurface Scattering, Reflection, Refraction, Transparency, and Irradiance). Some channels like Shadow Channel, Raw Diffuse Color, Raw Diffuse Lighting, Raw Diffuse GI, and Self Luminance are only available for Presto engines. Mask passes will only appear when you assign a mask to an object.

Depth Channel

Min/Max Z (m): Controls the minimum and maximum distance along the camera Z‐Axis.