节点编辑器Node Editor

难度LEVELL3 · 高级L3 · Advanced 领域TOPIC视觉特效

先学：Prerequisites: 节点

学习目标LEARNING OBJECTIVES

学完你能在节点编辑器（Node Editor）里自如地平移缩放、把节点装进查看器，并把节点树整理得清清爽爽。

概念说明CONCEPTS

节点编辑器是 Fusion 页面下方搭建节点树的工作区——加节点、连管道、理布局都在这里，它是你在合成里待得最久的地方。

  • 连接重于位置：画面只由管道连接决定，节点怎么摆都行——但整齐的树，一周后你还看得懂。
  • 装进查看器看中间结果：选中节点按 1 进左查看器、按 2 进右查看器，随时抽查任何一环的画面。
  • 导航手势全局通用：中键拖动平移、Cmd+滚轮（Win: Ctrl+滚轮）缩放，在查看器和曲线编辑器里同样有效。
  • 大工程靠导航器：按 V 唤出 Navigator 缩略图，节点再多也不迷路。

操作步骤STEPS

  1. 按住鼠标中键在空白处拖动，平移整个节点树（触控板用 Cmd-Shift+左键拖）
  2. 按住 Cmd（Win: Ctrl）滚动滚轮，以指针为中心缩放节点树
  3. 选中一个节点按 1 装进左查看器，再选另一个按 2 装进右查看器，对比两环画面两个节点分别装进左右查看器对比
  4. 按 V 打开 Navigator 缩略图，点缩略图快速跳到节点树的任意位置
  5. 右键空白处选 Options > Orthogonal Pipes，再选 Line Up All Tools to Grid 整理全局Options 菜单中的走线与对齐选项

练习PRACTICE

动手任务

  1. 把两个节点分别装进左右查看器，然后按 ` `` 键一键清空双查看器。
  2. 把节点树平移缩放到找不着北，再用 Navigator 缩略图跳回全局视图。

自检清单

做完任务后逐条自查，全部能打勾才算过。

常见问题FAQ

触控板没有中键怎么平移？

按住 Cmd-Shift（Win: Ctrl-Shift）加左键拖动即可。不过在 Fusion 里，一只三键鼠标或数位板会舒服很多。

查看器里的画面怎么一键适配窗口？

点一下查看器按 Cmd-F（Win: Ctrl-F）；+ / - 逐级缩放，Cmd-1 直接回 100%。

节点摆乱了会影响最终画面吗？

不会，结果只看连接。但乱摆的树没人看得懂——用 Options 里的对齐工具花十秒整理一下。

Learning Objectives学习目标

After this card you can pan and zoom the Node Editor with confidence, load nodes into the viewers, and keep a node tree tidy.

Concepts概念说明

The Node Editor is the workspace at the bottom of the Fusion page where you build the node tree — adding nodes, wiring pipes, and arranging the layout all happen here; it's where you'll spend most of your compositing time.

  • Connections over position: the picture depends only on the pipes — nodes can sit anywhere. But a tidy tree stays readable a week later.
  • Load nodes into viewers: select a node and press 1 for the left viewer, 2 for the right — spot-check any stage of the flow anytime.
  • Navigation gestures travel: middle-drag to pan, Cmd+scroll to zoom (Ctrl+scroll on Windows) — the same moves work in viewers and the curve editors.
  • Big trees need the Navigator: press V for a miniature map of the whole tree, so you never get lost.

Steps操作步骤

  1. Hold the middle mouse button and drag on empty space to pan the tree (on a trackpad use Cmd-Shift + left-drag)
  2. Hold Cmd (Ctrl on Windows) and scroll to zoom around the pointer
  3. Select a node and press 1 for the left viewer, select another and press 2 for the right — compare the two stagesTwo nodes loaded into the left and right viewers
  4. Press V to open the Navigator miniature, then click it to jump anywhere in the tree
  5. Right-click empty space and choose Options > Orthogonal Pipes, then Line Up All Tools to Grid to tidy upPipe and alignment options in the Options menu

Practice练习

Hands-on task

  1. Load two nodes into the left and right viewers, then press ` `` to clear both at once.
  2. Pan and zoom until you're lost in the tree, then use the Navigator to jump back to the big picture.

Self-check

Work through the task, then tick every line; all checked means you own this card.

FAQ常见问题

No middle mouse button on my trackpad — how do I pan?

Hold Cmd-Shift (Ctrl-Shift on Windows) and left-drag. That said, a three-button mouse or a pen tablet makes Fusion much friendlier.

How do I fit the picture to the viewer in one keystroke?

Click the viewer and press Cmd-F (Ctrl-F on Windows); + / - zoom in steps, Cmd-1 jumps straight to 100%.

Does a messy layout hurt the final image?

No — only connections decide the result. But nobody can read a messy tree; spend ten seconds with the alignment tools under Options.

深度资料：节点编辑器 →Deep dive: 节点编辑器 →

本卡术语Terms in this card

曲线Curves 窗口Power Window 合成Compositing Fusion 合成Fusion 节点Node PNGPNG