Filter

	Mirror Filter	This node can restrict which objects are rendered to a Mirror.
	Clip Plane Filter	This node can restrict which objects are clipped by a Clip Plane
	Cubemap Filter	The Cubemap Filter can restrict which objects are rendered to a Cubemap.
	Rank Filter	The Rank Filter is used in Chroma Keying mode to render parts of the Hierarchy to the Background, Foreground or Garbage Matte.
	Shadow Filter	Filters Objects for the Shadow Map Rendering.
	3D Layer Reference Filter	Filters objects for each rendering of a 3D Layer issued by 3D Layer References.
	Render Filter	Filter specific parts of your rendering on Previsualization Scenes or on Screens used in the Render Setup Editor.

There are several Filter Nodes available in the Toolbox to restrict objects inside the Hierarchy.

Mirror Filter

The Mirror Filter can restrict how objects interact with the Mirror.

Condition defines how the object is rendered.

Select assigns the filter to a filter set that can be handled by the Mirror node.
UseClipPlane switches the built-in clipplane of the Mirror on or off for the objects behind the filter.

The Mirror Filter can be used for design reasons as well as performance optimization. For example, complex elements in the scene can be replaced by simpler elements in the mirror by filtering the complex element to be rendered only BeforeMirror while the simpler element is only rendered BehindMirror.

Clip Plane Filter

The Clip Plane Filter can restrict which objects are clipped by a Clip Plane.
Select assigns the filter to a filter set that can be handled by the Clip Plane node.
UseClipPlane determines whether or not the objects behind the Filter node should be influenced by the Clip Plane that handles the selected filter set.

Cubemap Filter

The Cubemap Filter can restrict which objects are rendered on screen and inside the cubemap through Conditions.

Every 3D Layer can have two independant Cubemaps A and B. The Select property assign the Filter to the appropriate Cubemap.

Rank Filter

The Rank Filter is used in Chroma Keying mode to render parts of the Hierarchy to the Background, Foreground or Garbage Matte. In that mode the scene is rendered 3 times for the 3 different Ranks.

Beside the Filter node in the Hierarchy, the Ranks can also be applied to Layers.

Shadow Filter

The Shadow Filter can set a Condition for the parts of the hierarchy behind the Shadow Filter. The Condition ModelAndShadow (default) will render both, the Shadow and the Model. While Model Only renders the Model only, without casting a shadow. And least Shadow Only renders only the Shadow from the Model.

You can Select a Filter Group. The available groups are A,B and off. You can set Shadows and the Filter to the same group to influence the selected group only.

3D Layer Reference Filter

The 3D Layer Reference Filter defines which objects should be rendered in a given 3D Layer Reference. Each 3D Layer Reference defines exactly one Group of Objects that it will render. All other Objects are omitted during the Rendering. By default each object will belong to all Groups and thus be rendered in each 3D Layer Reference. The filter disables the rendering of an object for all unchecked Groups in the Select Property.

Render Filter

Use the filter groups to assign specific parts of your rendering to it and ignore others. These groups need to be also set on the Previs Screen node or inside the Render Setup Editor on Screens to fully work. Filter groups are usable from A to H either on the Render Filter node or under the Render Options inside the Previs Screen node. If ignore is chosen all groups set will be ignored.