This page provides information about the Render Channels Container node in V-Ray for Blender.
Overview
The RenderChannelsContainer node allows you to add more than one render channel to the render.
UI Path: ||V-Ray Node Editor|| > World > Render Channels > V-Ray Channels Container
Node Input Sockets
Channel – Connect Render Channels to these sockets. Click the 
button to add additional channels or the 
button to remove channels from the list.
Properties
See the Render Channels page to find out where you can find these properties.
Fragment Method – Determines the final values for render s for which filtering is turned off:
Best coverage – For each pixel, the final values for the render channel are taken from the object that has the largest contribution to that pixel.
Closest to camera – For each pixel, the final values for the render channel are taken from the object that is closest to the camera.
Deep Merge Mode – Determines how to blend fragments within a pixel:
By render ID – Deep fragments within a pixel are merged based on which objects they belong to (objects are differentiated based on their render ID as it appears in the render ID channel);
By z-depth – Deep fragments within a pixel are merged based on the similarity of their z-depth values. Use the Deep Merge Z-depth Threshold parameter to control how close fragments need to be in order to merge them.
Deep Merge Coeff – Determines the z-depth blending sensitivity, i.e., how close the fragments need to be in order to merge them when By z-depth mode is selected. The value is relative to the pixel size. A value of 1.0 means that fragments that are within a block roughly the size of a pixel are merged together. Lower values produce more precise deep data but can lead to larger files. Higher values make the deep data less precise but can make the resulting deep files much smaller. A value of 0.0 stores every single image sample separately and is not recommended.
