SOURCE

var canvas = document.getElementById('canvas');
var lookupTable = new Image();
lookupTable.crossOrigin = "";
let effectNode1,videoNode2,transition ;
var editor = new Editor(canvas);
let videoNode = editor.video("https://tosv.byted.org/obj/eden-internal/uhyuhybd/video-editor-resource/assets/example2.mp4", {
    top: 80,
    width: 640,
    height: 200,
});
videoNode.timelineStart(0);
videoNode.timelineStop(6.4);
lookupTable.src = 'https://tosv.byted.org/obj/eden-internal/uhyuhybd/video-editor-resource/assets/image/niupizhi_lut.png';
lookupTable.onload = () => {
    effectNode1 = editor.transition(Editor.DEFINITIONS.LUT_FILTER(lookupTable, 1));//Editor.DEFINITIONS.LUT_FILTER(lookupTable, 1)
    effectNode1.transition(0, 4.4);
    videoNode.connect(effectNode1);
    videoNode2 = editor.video("https://tosv.byted.org/obj/eden-internal/uhyuhybd/video-editor-resource/assets/cat_green_screen.mp4", {
        top: 80,
        width: 640,
        height: 200,
    });
    videoNode2.timelineStart(2.4);
    videoNode2.timelineStop(10);

    transition = editor.transition(Editor.DEFINITIONS.DIRECTIONAL_WIPE);
    transition.transition(2.4, 6.4);
    //下边的是新写法
    effectNode1.connect(transition);
    videoNode2.connect(transition);
    // effectNode1.connect(transition);
    // videoNode2.connect(transition);

    transition.connect(editor.output);
}

let wrapper = document.getElementById('wrapper');
let interactiveBox = editor.initInteractiveBox(wrapper, {
    rotatable: true
});
initButton();
InitVisualisations(editor, 'timeline-canvas', 'currentTime');

let graphCanvas = document.getElementById('graph');
Editor.utils.visualiseVideoContextGraph(editor, graphCanvas);
editor.on('timeupdate', () => {
    Editor.utils.visualiseVideoContextGraph(editor, graphCanvas);
})

function initButton() {
    var playButton = document.getElementById('play-button');
    var pauseButton = document.getElementById('pause-button');
    playButton.onclick = editor.play.bind(editor);
    pauseButton.onclick = editor.pause.bind(editor);

}
document.getElementById("enable-guess").onclick = function () {
    addGuess();
}
function addGuess() {
    let videoNode1 = editor.video("https://tosv.byted.org/obj/eden-internal/uhyuhybd/video-editor-resource/assets/example2.mp4", {
        top: -80,
        width: 840,
        height: 600,
    });
    videoNode1.timelineStart(0);
    videoNode1.timelineStop(6.4);

    // var effectNode = editor.transition(Editor.DEFINITIONS.GAUSSIANBLUR());
    // effectNode.transition(0, 6.4);
    // videoNode1.connect(effectNode);
    // videoNode.disconnect();
    

    let compositing = editor.compositing();
    // videoNode.connect(compositing);
    videoNode.disconnect();
    videoNode.connect(compositing);
    videoNode1.connect(compositing);
    // compositing.connect(effectNode1);
    compositing.connect(effectNode1);
    // compositing.connect(transition);

}

 <div class="wrapper" id="wrapper">
    <canvas width="640" height="360" id="canvas" style="border: 1px solid red;"></canvas>
  </div>
  <p>
    <button id="play-button">play</button>
    <button id="pause-button">pause</button>
    <button id="enable-guess">开启高斯模糊</button>
  </p>
  <p id="currentTime"></p>
  <p>
    <canvas id="timeline-canvas" width="640" , height="20"></canvas>
  </p>
  <canvas width="640" height="360" id="graph"></canvas>

html {
    font-family: monospace;
    color: #333;
    /* background-color: black; */
  }
  #current {
    font-size: 12px;
  }
  #canvas {
    width: 640px;
    height: 360px;
  }
  #canvas2 {
    width: 640px;
    height: 360px;
    position: absolute;
    left: 0px;
    top: 0px;
    z-index: 10;
  }
  #container {
    position: relative;
  }

  button {
    line-height: 1.499;
      position: relative;
      display: inline-block;
      font-weight: 400;
      white-space: nowrap;
      text-align: center;
      background-image: none;
      border: 1px solid transparent;
      cursor: pointer;
      user-select: none;
      height: 32px;
      padding: 0 15px;
      font-size: 14px;
      border-radius: 4px;
      color: rgba(0,0,0,0.65);
      background-color: #fff;
      border-color: #d9d9d9;
      outline: 0;
      transition: all .3s cubic-bezier(.645, .045, .355, 1);
  }

  button:hover {
    color: #40a9ff;
    background-color: #fff;
    border-color: #40a9ff;
  }

  button:active {
    color: #096dd9;
    background-color: #fff;
    border-color: #096dd9;
  }

  input[type="text"] {
    -webkit-appearance: none;
    background-color: #fff;
    background-image: none;
    border-radius: 4px;
    border: 1px solid #dcdfe6;
    box-sizing: border-box;
    color: #606266;
    display: inline-block;
    font-size: inherit;
    height: 32px;
    line-height: 32px;
    outline: none;
    padding: 0 8px;
    transition: border-color 0.2s cubic-bezier(0.645, 0.045, 0.355, 1);
    width: 50px;
  }

  .wrapper {
    width: 640px;
    height: 360px;
    position: relative;
  }

@font-face {
  font-family: "hardFont";
  src: url('./assets/hardFont.ttf');
}

 .wrapper {
      position: relative;
      width: 480px;
      height: 640px;
      overflow: hidden;
      border: 1px solid red;
    }

    #canvas {
      width: 480px;
      height: 640px;
    }