Using Object Type Filter filters

Object Type Filter collects objects based on their type.

Creating an Object Type Filter

To create an object type filter:

In the Library press Alt and right-click Rendering > Object Sources and select Object Type Filter.
In the Properties set:
- Source to the source from where you want to collect nodes for filtering.
  For example, to apply your filter to all nodes in your project, select Root Object Source. You can select the output of another filter as the source from where you collect nodes for filtering.
- Type to the type of object you want the filter to collect.
  For example, to collect all Light objects select Light.
  When you want the filter to collect all objects that can be rendered, select All renderables. By default this value includes all mesh objects (Box, Model, Plane, Sphere) and Text Block 3D object.
  You can set the rendering of objects in the API by calling
```
kzuObjectNodeSetIsRenderable(objectNode, KZ_TRUE);
```
- Operation to either:
  - Include to collect the objects of the type you set in the Type property.
  - Exclude to leave out the objects of the type you set in the Type property.

To take the object type filter into use:

In the Library > Rendering > Render Passes create a Group Render Pass and inside it create:
- Clear Render Pass
- Draw Objects Render Pass
In the Library select the Draw Objects Render Pass you created and in the Properties set the Object Source property to the filter you created.
In the Project select the Scene node to which you want to apply the filter and in the Properties set the Render Pass property to the Group Render Pass whose child Draw Objects Render Pass uses as its object source the filter you created.

Kanzi Studio renders the nodes collected by the filter.

For details, see the KzuObjectTypeFilter class in the API reference.