Everything Playing Back Effects T-HFND-010-012 To playback your effects, you need to do a temporary render. How to play back effects In the Playback toolbar, click the Render and Play button. The Play node opens and loads the frames. Once the frames are loaded, click the Play button in the Play window. Select Scene > Render > Cancel Preview Render to cancel the rendering. NOTE While previewing effects, you can press the Spacebar to stop and start playback.