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

		public void LoadWorldGeometry()
		{
			bspGeometry = new BspGeometry();

			if ( !optionList.ContainsKey( "Map" ) )
				throw new AxiomException( "Unable to load world geometry. \"Map\" filename option is not set." );

			if ( Path.GetExtension( ( (string)optionList[ "Map" ] ).ToLower() ) != ".bsp" )
				throw new AxiomException( "Unable to load world geometry. Invalid extension of map filename option (must be .bsp)." );

			if ( !optionList.ContainsKey( "SetYAxisUp" ) )
				optionList[ "SetYAxisUp" ] = false;

			if ( !optionList.ContainsKey( "Scale" ) )
				optionList[ "Scale" ] = 1f;

			if ( !optionList.ContainsKey( "Move" ) )
			{
				optionList[ "Move" ] = Vector3.Zero;
				optionList[ "MoveX" ] = 0;
				optionList[ "MoveY" ] = 0;
				optionList[ "MoveZ" ] = 0;
			}

			if ( !optionList.ContainsKey( "UseLightmaps" ) )
				optionList[ "UseLightmaps" ] = true;

			if ( !optionList.ContainsKey( "AmbientEnabled" ) )
				optionList[ "AmbientEnabled" ] = false;

			if ( !optionList.ContainsKey( "AmbientRatio" ) )
				optionList[ "AmbientRatio" ] = 1f;

			InitTextureLighting();

			if ( spotlightFrustum == null )
				spotlightFrustum = new SpotlightFrustum();

			NameValuePairList paramList = new NameValuePairList();

			foreach ( DictionaryEntry option in optionList )
			{
				paramList.Add( option.Key.ToString(), option.Value.ToString() );
			}

			// Load using resource manager
			level = (BspLevel)BspResourceManager.Instance.Load( (string)optionList[ "Map" ], ResourceGroupManager.Instance.WorldResourceGroupName, false, null, paramList );

			// Init static render operation
			renderOp.vertexData = level.VertexData;

			// index data is per-frame
			renderOp.indexData = new IndexData();
			renderOp.indexData.indexStart = 0;
			renderOp.indexData.indexCount = 0;

			// Create enough index space to render whole level
			renderOp.indexData.indexBuffer = HardwareBufferManager.Instance.CreateIndexBuffer(
				IndexType.Size32,
				level.NumIndexes,
				BufferUsage.Dynamic, false
				);
			renderOp.operationType = OperationType.TriangleList;
			renderOp.useIndices = true;
		}