Axiom.SceneManagers.Bsp.BspSceneManager.ProcessVisibleLeaf C# (CSharp) Method

		protected void ProcessVisibleLeaf( BspNode leaf, Camera camera, bool onlyShadowCasters )
		{
			// Skip world geometry if we're only supposed to process shadow casters
			// World is pre-lit
			if ( !onlyShadowCasters )
			{
				// Parse the leaf node's faces, add face groups to material map
				int numGroups = leaf.NumFaceGroups;
				int idx = leaf.FaceGroupStart;

				while ( numGroups-- > 0 )
				{
					int realIndex = level.LeafFaceGroups[ idx++ ];

					// Is it already checked ?
					if ( faceGroupChecked.ContainsKey( realIndex ) && faceGroupChecked[ realIndex ] == true )
						continue;

					faceGroupChecked[ realIndex ] = true;

					BspStaticFaceGroup faceGroup = level.FaceGroups[ realIndex ];

					// Get Material reference by handle
					Material mat = GetMaterial( faceGroup.materialHandle );

					// Check normal (manual culling)
					ManualCullingMode cullMode = mat.GetTechnique( 0 ).GetPass( 0 ).ManualCullingMode;

					if ( cullMode != ManualCullingMode.None )
					{
						float dist = faceGroup.plane.GetDistance( camera.DerivedPosition );

						if ( ( ( dist < 0 ) && ( cullMode == ManualCullingMode.Back ) ) ||
							( ( dist > 0 ) && ( cullMode == ManualCullingMode.Front ) ) )
							continue;
					}

					// Try to insert, will find existing if already there
					matFaceGroupMap.Add( mat, faceGroup );
				}
			}

			// Add movables to render queue, provided it hasn't been seen already.
			foreach ( MovableObject obj in leaf.Objects.Values )
			{
				if ( !objectsForRendering.ContainsKey( obj.Name ) )
				{
					if ( obj.IsVisible &&
						( !onlyShadowCasters || obj.CastShadows ) &&
						camera.IsObjectVisible( obj.GetWorldBoundingBox() ) )
					{
						obj.NotifyCurrentCamera( camera );
						obj.UpdateRenderQueue( this.renderQueue );
						// Check if the bounding box should be shown.
						SceneNode node = (SceneNode)obj.ParentNode;
						if ( node.ShowBoundingBox || this.showBoundingBoxes )
						{
							node.AddBoundingBoxToQueue( this.renderQueue );
						}
						objectsForRendering.Add( obj );
					}
				}
			}
		}