NEW IN R23
Scene Nodes
Here you can define if geometry generated using the Scene Node Editor should be displayed in the Viewport.
These settings are irrelevant for render output via the Standard or Physical renderers (but are essential for the Viewport renderer).
You can select from the following:
The geometry generated by the Scene Node Editor will not be displayed.
The geometry generated by the Scene Node Editor will be displayed. The Viewport will switch to a fast mode with less quality (e.g., no materials will be displayed) for the objects generated by the Scene Node Editor.
In this mode, very many objects can be displayed fluidly in the Viewport (if the graphics card is powerful enough, even millions can be displayed).
Geometry generated by the Scene Node Editor will be displayed. In this mode, everything will be displayed in the Viewport.
Please note:: If very many Node-generated objects are involved your computer might be bogged down until it freezes up.