BGE: work around a problem with DBVT culling when graphic objects are rescaled. This happens when objects with very diverse scale are instantiated with dupligroup. The problem remains when the objects are rescaled during the game. The effect of the problem is an inefficient culling: objects can have a bounding box larger than needed. Patch to fix the problem is filed at Bullet forum.

1 files changed, 29 insertions, 0 deletions

diff --git a/source/gameengine/Ketsji/KX_GameObject.cpp b/source/gameengine/Ketsji/KX_GameObject.cpp
index 20113afaae2..fa95a89135b 100644
--- a/source/gameengine/Ketsji/KX_GameObject.cpp
+++ b/source/gameengine/Ketsji/KX_GameObject.cpp
@@ -331,6 +331,35 @@ void KX_GameObject::ProcessReplica()
 		
 }
 
+static void setGraphicController_recursive(SG_Node* node, bool v)
+{
+	NodeList& children = node->GetSGChildren();
+
+	for (NodeList::iterator childit = children.begin();!(childit==children.end());++childit)
+	{
+		SG_Node* childnode = (*childit);
+		KX_GameObject *clientgameobj = static_cast<KX_GameObject*>( (*childit)->GetSGClientObject());
+		if (clientgameobj != NULL) // This is a GameObject
+			clientgameobj->ActivateGraphicController(v, false);
+		
+		// if the childobj is NULL then this may be an inverse parent link
+		// so a non recursive search should still look down this node.
+		setGraphicController_recursive(childnode, v);
+	}
+}
+
+
+void KX_GameObject::ActivateGraphicController(bool active, bool recurse)
+{
+	if (m_pGraphicController)
+	{
+		m_pGraphicController->Activate(active);
+	}
+	if (recurse)
+	{
+		setGraphicController_recursive(GetSGNode(), active);
+	}
+}
 
 
 CValue* KX_GameObject::GetReplica()