/**
* <code>checkCulling</code> checks the spatial with the camera to see if it should be culled.
*
* <p>This method is called by the renderer. Usually it should not be called directly.
*
* @param cam The camera to check against.
* @return true if inside or intersecting camera frustum (should be rendered), false if outside.
*/
public boolean checkCulling(Camera cam) {
if (refreshFlags != 0) {
throw new IllegalStateException(
"Scene graph is not properly updated for rendering.\n"
+ "State was changed after rootNode.updateGeometricState() call. \n"
+ "Make sure you do not modify the scene from another thread!\n"
+ "Problem spatial name: "
+ getName());
}
CullHint cm = getCullHint();
assert cm != CullHint.Inherit;
if (cm == Spatial.CullHint.Always) {
setLastFrustumIntersection(Camera.FrustumIntersect.Outside);
return false;
} else if (cm == Spatial.CullHint.Never) {
setLastFrustumIntersection(Camera.FrustumIntersect.Intersects);
return true;
}
// check to see if we can cull this node
frustrumIntersects =
(parent != null ? parent.frustrumIntersects : Camera.FrustumIntersect.Intersects);
if (frustrumIntersects == Camera.FrustumIntersect.Intersects) {
if (getQueueBucket() == Bucket.Gui) {
return cam.containsGui(getWorldBound());
} else {
frustrumIntersects = cam.contains(getWorldBound());
}
}
return frustrumIntersects != Camera.FrustumIntersect.Outside;
}
