/*! * @param world Vixen 3D world * Initializes the Vixen 3D environment for the given world. * If you do not provide an initial world, one is created for you. * This function does not start 3D display - RunVixen does that. * The world can only be initialized once - subsequent calls do nothing. * * @return -> Vixen SharedWorld or null if initialization failed */ static public SharedWorld StartVixen(SharedWorld world) { _world = world; if (_world == null) { _world = new Viewer3D(); } else if (_world.FileName != null) { string dir = Path.GetDirectoryName(_world.FileName); if ((dir != null) && (dir.Length > 0)) { Directory.SetCurrentDirectory(dir); _world.SetMediaDir(dir); } } if ((_world == null) || !_world.OnInit()) { SharedWorld.LogError("cannot initialize Vixen"); return(null); } GC.KeepAlive(_world); _world.MakeLock(); if (UsePhysics) { Physics.Startup(); } return(_world); }
/*! * Start up Vixen 3D display and event processing. * This function should not be called until the * underlying Window has been created and the * OS window handle is available. Vixen will display * the 3D content in this window. */ public virtual bool RunVixen() { SharedWorld world = SharedWorld.Get(); IntPtr windowHandle = Handle; Scene scene = null; try { if (windowHandle == null) { LogError("Cannot get window handle for parent window"); return(false); } if ((world != null) && world.IsRunning()) { return(false); } //world.SetDebugLevel(1); world.Run((uint)windowHandle); } catch (Exception ex) { LogError("exception starting 3D " + ex.Message); } if (world.IsRunning()) { ThreadStart eventloop = new ThreadStart(EventLoop); Thread thread = new Thread(eventloop); bool loadasync = World.DoAsyncLoad; if (MediaDir != null) { world.SetMediaDir(MediaDir); } if (ContentFile != null) { world.FileName = GetMediaPath(ContentFile); } else { loadasync = false; } thread.Start(); if (!loadasync) { try { scene = MakeScene(); if (scene != null) { world.SetScene(scene); } } catch (Exception ex) { SharedWorld.LogError("exception making initial scene " + ex.Message); } } scene = world.GetScene(); if (scene != null) { scene.OnResize(); } return(true); } return(false); }