This page provides information about the RenderChannelsContainer node in V-Ray for Houdini.
Overview
The RenderChannelsContainer node allows you to add more than one render elements to the render.
Parameters
Unfiltered Fragment Method – Determines the final values for render elements for which filtering is turned off:
Best Coverage – For each pixel, the final values for the render element 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 element 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 element);
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 Z-depth Threshold – 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.
Usage Example
The Channels Container allows you to add more than one render channels in the scene and render them. In order to do so:
- Create a V-Ray Channels Container as specified in the UI Paths section;
- Create render channels from V-Ray > Render Channels sub-menu;
- Connect the render channels to the Channels Container.
