Hello!
In the User Guide, in the Visibility Determination section (http://www.jmonkeyengine.com/wiki/doku.php?id=visibility_determination), it is said that:
In essence, this frustum creates six standard view planes. The BoundingVolume of an object is tested against the frustum planes to determine if it is contained in the frustum. If at any point the object
It Does.
Just set your frustrum to being half as small as it should be - you will see the culling
I thought it would only check children nodes if the parent bounding was only partially inside the frustum? (If it's all outside cull the whole lot and if it's all inside draw the whole lot)
I think you are right, according to http://www.jmonkeyengine.com/wiki/doku.php?id=camera that's exactly what it does, Gentleman:
During a frame, every Spatial is checked against the Camera for frustum culling. A call to Camera