couldn't work out why oct-trees were culled against the bounding box of the...

couldn't work out why oct-trees were culled against the bounding box of the frustum rather than the frustum itself. works better than the bounding box method in my test meshes (box method culls too much) so I changed it back to use frustum method.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@705 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/COctTreeSceneNode.cpp

@@ -113,16 +113,19 @@ void COctTreeSceneNode::render()
 	//transform the frustum to the current absolute transformation
 	core::matrix4 invTrans(AbsoluteTransformation);
 	invTrans.makeInverse();
-	frust.transform(invTrans);
+	/*
+	//frust.transform(invTrans);
+	//const core::aabbox3d<float> &box = frust.getBoundingBox();
+	*/
 
-	const core::aabbox3d<float> &box = frust.getBoundingBox();
+	frust.transform(invTrans);
 
 	switch(vertexType)
 	{
 	case video::EVT_STANDARD:
 		{
-			StdOctTree->calculatePolys(box);
-			//StdOctTree->calculatePolys(frust);
+			//StdOctTree->calculatePolys(box);
+			StdOctTree->calculatePolys(frust);
 
 			OctTree<video::S3DVertex>::SIndexData* d =  StdOctTree->getIndexData();
 
@@ -168,8 +171,8 @@ void COctTreeSceneNode::render()
 		}
 	case video::EVT_2TCOORDS:
 		{
-			LightMapOctTree->calculatePolys(box);
-			//LightMapOctTree->calculatePolys(frust);
+			//LightMapOctTree->calculatePolys(box);
+			LightMapOctTree->calculatePolys(frust);
 
 			OctTree<video::S3DVertex2TCoords>::SIndexData* d =  LightMapOctTree->getIndexData();
 

source/Irrlicht/OctTree.h

@@ -95,7 +95,7 @@ public:
 		for (u32 i=0; i<IndexDataCount; ++i)
 			IndexData[i].CurrentSize = 0;
 
-		Root->getPolys(frustum, IndexData);
+		Root->getPolys(frustum, IndexData, 0);
 	}