How to animate node connections in ComfyUI

Animating node connections in ComfyUI is not part of its native function, because ComfyUI is mainly a node-based generative workflow tool, with the original design focus more on static workflow management and image generation rather than dynamic animation effects. However, similar effects can be achieved through some indirect methods or plug-ins, or at least simulate a visual dynamic sense.

Here are a few possible ideas and methods:

Method 1: Use ComfyUI-AnimateNodes plugin

ComfyUI-AnimateNodes是一个扩展插件，允许你对节点连接设置动画效果。

Installation method:

1. Download plugin:

    bash copy edit git clone https://github.com/comfyanonymous/ComfyUI-AnimateNodes.git

2. 将插件文件夹放入custom_nodes目录。

3. 重启ComfyUI ，然后在ComfyUI中启用该插件。

Main functions:

• You can add a smooth transition effect to the connections between nodes.

• Allows dynamic adjustment of connections over a specific time period.

Method 2: Use ComfyUI + CSS/JS to modify the front-end

If you want to add more complex animation effects to the connection lines, you can:

1. 修改ComfyUI的前端（使用CSS/JavaScript ）。

2. 监听节点连接事件，然后在JavaScript中使用GSAP或anime.js等动画库来创建平滑动画。

Example:

 js copy edit // Listen to ComfyUI event document.addEventListener("DOMContentLoaded", function () { let connections = document.querySelectorAll(".connection-line");
    connections.forEach((conn) => {
        conn.style.transition = "stroke-dashoffset 0.5s ease-in-out";
    });
});

This allows you to add transition animations as connection changes.

Method 3: Use OBS to record screen + video post-production

如果你的目标是生成一段有动画效果的ComfyUI流程演示，你可以：

1. 用OBS或ScreenToGif录制ComfyUI界面。

2. 在After Effects 、 Premiere Pro或DaVinci Resolve里后期添加节点连接动画。

Summarize:

如果你想实时为ComfyUI的连接添加动画： ✅推荐使用ComfyUI-AnimateNodes插件。
如果你愿意修改前端代码： ✅使用JavaScript/CSS为UI 添加过渡效果。
如果只是为了做演示视频： ✅ OBS 录屏+ 后期处理 是最佳方案。