after-effects

Compare original and translation side by side

🇺🇸

Original

English

🇨🇳

Translation

Chinese

After Effects

After Effects is GUI software, so this skill delivers knowledge and ready-to-paste assets — expressions, rig setups, export checklists, diagnostic flows, naming schemes, and ExtendScript — rather than a rendered file. It is a hub covering four domains; route to the matching reference for depth and complete recipes.

After Effects是一款图形用户界面（GUI）软件，因此本技能提供的是知识和可直接复制使用的资源——表达式、绑定设置、导出清单、诊断流程、命名规则以及ExtendScript脚本——而非渲染好的文件。它是一个涵盖四大领域的资源中心，可根据需求跳转至对应的参考文档获取详细内容和完整方案。

Routing

If the user wants to…	Go to
Write/debug an expression, rig sliders & nulls, build a MOGRT, export to Lottie	`references/expressions.md` (deep cookbook in `references/expression-library.md` )
Choose a codec/container, export with alpha, fix a black background, set bitrate, recover H.264	`references/export-recipes.md`
Fix slow/laggy previews, slow renders, crashes, freezes, out-of-memory	`references/performance-triage.md`
Organize the project, relink missing footage, set naming/folders, batch-automate with .jsx	`references/project-hygiene.md`

The

.jsx

automation scripts live in

scripts/

如果用户需要…	前往
编写/调试表达式、绑定滑块与空对象、制作MOGRT、导出为Lottie格式	`references/expressions.md` （详细手册见 `references/expression-library.md` ）
选择编码/容器、导出带Alpha通道的文件、修复黑背景问题、设置比特率、恢复H.264选项	`references/export-recipes.md`
修复预览缓慢/卡顿、渲染缓慢、崩溃、冻结、内存不足问题	`references/performance-triage.md`
整理项目、重新链接缺失素材、设置命名/文件夹规则、用.jsx实现批量自动化	`references/project-hygiene.md`

.jsx自动化脚本存放在

scripts/

目录下。

Expressions & rigging

表达式与绑定

Expressions are JavaScript evaluated on the property they are pasted on;

value

is that property's value,

time

is comp time in seconds, and

index

thisLayer

thisComp

are in scope. An expression overrides keyframes unless it incorporates

value

wiggle(2, 30);            // 2 wiggles/sec, amplitude 30 (property units)
loopOut("cycle");         // repeat keyframed range forever; "pingpong" / "offset" / "continue"
seedRandom(index, true);  // stable-but-unique per layer (timeless) before random()/wiggle()
thisComp.layer("Lead").transform.position.valueAtTime(time - 0.2 * index);  // staggered echo

Inertial bounce (overshoot/settle after the last keyframe) and the full loop/wiggle/rigging set are in

references/expressions.md

Rig controllable motion: add a null with Slider / Checkbox / Color / Angle / Point control effects, then reference them and parent transforms to drive many layers from one.

ctrl = thisComp.layer("Controls");
amt  = ctrl.effect("Intensity")("Slider");   // Checkbox → 1/0, Color → [r,g,b,a]
value * amt;

Expose those controls via Window → Essential Graphics and Export Motion Graphics Template (.mogrt) for Premiere/AE editors.

表达式是粘贴到属性上后会被执行的JavaScript代码；

value

代表该属性的当前值，

time

代表合成时间（单位：秒），

index

、

thisLayer

、

thisComp

均为可用变量。除非表达式中包含

value

，否则会覆盖关键帧。

wiggle(2, 30);            // 每秒2次摆动，振幅30（属性单位）
loopOut("cycle");         // 无限重复关键帧区间；可选"pingpong"/"offset"/"continue"模式
seedRandom(index, true);  // 在使用random()/wiggle()前，为每个图层生成稳定且唯一的随机值（不受时间影响）
thisComp.layer("Lead").transform.position.valueAtTime(time - 0.2 * index);  // 交错回声效果

Inertial bounce（最后一个关键帧后的过冲/稳定效果）以及完整的循环/摆动/绑定设置可查看

references/expressions.md

。

绑定可控运动：添加一个带有滑块/复选框/颜色/角度/点控制效果的空对象，然后引用这些控制并将变换属性设置为父子关系，即可通过一个控制器驱动多个图层。

ctrl = thisComp.layer("Controls");
amt  = ctrl.effect("Intensity")("Slider");   // 复选框返回1/0，颜色返回[r,g,b,a]
value * amt;

通过窗口 > 基本图形和导出动态图形模板（.mogrt）将这些控制暴露给Premiere/AE编辑人员使用。

Export recipes

导出方案

Two engines, and choosing wrong is the root of most export confusion:

Render Queue (RQ) — masters/intermediates: ProRes, image sequences, lossless, alpha.
Adobe Media Encoder (AME) — delivery: H.264 MP4, H.265, social presets.

Since AE CC 2014/2015 the native H.264 output module was removed from the RQ — make MP4s in AME, not the RQ. H.264/MP4 cannot store alpha, so a transparent comp exported to H.264 always fills with black; that is the classic "black background" complaint and not a bug. For transparency use ProRes 4444, a PNG/TIFF sequence, or HEVC-alpha (Safari) + VP9/WebM-alpha (Chrome), with Output Module Channels: RGB + Alpha.

Quick targets: editor handoff → ProRes 422 HQ; master/grade or alpha → ProRes 4444; web/social/client → H.264 via AME, VBR 2-pass (~10–16 Mbps 1080p, ~35–45 Mbps 4K). Full matrix, social specs, and step-by-step alpha exports in

references/export-recipes.md

有两种导出引擎，选错引擎是大多数导出困惑的根源：

渲染队列（RQ） —— 用于导出母版/中间文件：ProRes、图像序列、无损格式、Alpha通道。
Adobe Media Encoder（AME） —— 用于导出交付文件：H.264 MP4、H.265、社交媒体预设。

自AE CC 2014/2015版本起，渲染队列中移除了原生的H.264输出模块——请在AME中制作MP4文件，而非渲染队列。H.264/MP4无法存储Alpha通道，因此导出带透明通道的合成到H.264格式时，透明区域总会被填充为黑色；这是常见的“黑背景”问题，并非软件Bug。如需透明通道，请使用ProRes 4444、PNG/TIFF序列，或HEVC-alpha（Safari）+ VP9/WebM-alpha（Chrome），并在输出模块中设置通道：RGB + Alpha。

快速导出目标：交付给剪辑师 → ProRes 422 HQ；母版/调色或带Alpha通道 → ProRes 4444；网络/社交媒体/客户交付 → 通过AME导出H.264，VBR 2-pass（1080p约10–16 Mbps，4K约35–45 Mbps）。完整的编码矩阵、社交媒体规范以及带Alpha通道导出的分步指南可查看

references/export-recipes.md

。

Performance triage

性能优化

Work top-down by symptom, cheapest fix first, and stop when it clears. Most settings are in

Edit > Preferences

(Win) /

After Effects > Settings

(Mac).

Slow previews: Half/Third resolution → enable Multi-Frame Rendering → raise RAM allocation (leave ~6 GB for OS) → Adaptive fast previews → purge cache → Disk Cache on SSD/NVMe → solo heavy layers/effects → HW-accelerated decode → proxy heavy comps.
Slow renders: confirm MFR on → RQ for masters / AME for delivery → HW decode H.264 → pre-render slow precomps → cheaper effects → transcode long-GOP to ProRes.
Crashes/freezes: purge + empty disk cache → update NVIDIA Studio (not Game-Ready) drivers → reset prefs (
```
Ctrl/Cmd+Alt+Shift
```
on launch) → pull third-party plugins → free disk space → disable MFR if MFR-specific → roll back AE after a bad update.

MFR needs several GB RAM per active core. Ordered flows, exact preference paths, and the proxy workflow are in

references/performance-triage.md

按症状从上到下排查，优先采用成本最低的解决方案，问题解决后即可停止。大多数设置位于

编辑 > 首选项

（Windows）/

After Effects > 设置

（Mac）中。

预览缓慢： 将分辨率调为半分辨率/三分之一分辨率 → 启用多帧渲染 → 提高RAM分配（为系统预留约6GB） → 自适应快速预览 → 清除缓存 → 将磁盘缓存设置在SSD/NVMe上 → 单独显示占用资源高的图层/效果 → 硬件加速解码 → 为复杂合成创建代理。
渲染缓慢： 确认已启用多帧渲染 → 用渲染队列导出母版/用AME导出交付文件 → 硬件加速解码H.264 → 预渲染复杂的预合成 → 使用轻量化效果 → 将长GOP格式转码为ProRes。
崩溃/冻结： 清除并清空磁盘缓存 → 更新NVIDIA Studio（而非Game-Ready）驱动 → 重置首选项（启动时按住
```
Ctrl/Cmd+Alt+Shift
```
） → 移除第三方插件 → 释放磁盘空间 → 如果是多帧渲染特定问题则禁用多帧渲染 → 若更新后出现问题则回滚AE版本。

多帧渲染每个活跃核心需要数GB内存。完整的排查流程、准确的首选项路径以及代理工作流可查看

references/performance-triage.md

。

Project hygiene

项目规范

Keep projects organized, portable, and automatable.

Folders: numeric-prefixed bins (
```
01_Comps
```
,
```
02_Precomps
```
,
```
03_Footage
```
, …,
```
99_Old
```
) for stable sort order.
Naming:
```
PROJECT_section_descriptor_v01
```
; precomps
```
PRE_
```
; rename solids/nulls to their role (
```
CTRL_master
```
); no spaces/special chars for farm/cross-OS safety.
Broken links: AE references footage by path, so moving files breaks links. Double-click a missing item → Replace Footage > File and AE relinks the whole folder at once; enumerate with
```
File > Dependencies > Find Missing Footage
```
. Always hand off projects via
File > Dependencies > Collect Files
, never a bare
```
.aep
```
.

ExtendScript (.jsx): wrap batches in

app.beginUndoGroup(...) / app.endUndoGroup()

; apply effects by matchName (e.g.

"ADBE Gaussian Blur 2"

), not the display name. Ready scripts:

scripts/batch-rename.jsx

scripts/sequential-offset.jsx

scripts/apply-effect-to-layers.jsx

Full naming scheme, label-color system, relink/Collect-Files/Reduce workflows, and scripting setup in

references/project-hygiene.md

保持项目有序、可移植且可自动化。

文件夹： 使用带数字前缀的文件夹（
```
01_Comps
```
、
```
02_Precomps
```
、
```
03_Footage
```
……
```
99_Old
```
）以确保稳定的排序顺序。
命名： 采用
```
PROJECT_section_descriptor_v01
```
格式；预合成以
```
PRE_
```
开头；将纯色层/空对象重命名为其功能（如
```
CTRL_master
```
）；为了兼容渲染农场/跨平台，避免使用空格和特殊字符。
损坏的链接： AE通过路径引用素材，因此移动文件会导致链接损坏。双击缺失的素材 → 替换素材 > 文件，AE会一次性重新链接整个文件夹；可通过
```
文件 > 依赖项 > 查找缺失素材
```
列出所有缺失素材。务必通过
文件 > 依赖项 > 收集文件
交付项目，不要直接发送
```
.aep
```
文件。

ExtendScript（.jsx）： 将批量操作包裹在

app.beginUndoGroup(...) / app.endUndoGroup()

中；通过matchName（如

"ADBE Gaussian Blur 2"

）而非显示名称来应用效果。现成脚本包括：

scripts/batch-rename.jsx

、

scripts/sequential-offset.jsx

、

scripts/apply-effect-to-layers.jsx

。

完整的命名规则、标签颜色系统、重新链接/收集文件/精简项目工作流以及脚本设置可查看

references/project-hygiene.md

。

Reference files

参考文件

```
references/expressions.md
```
— expressions, rigging, MOGRT, Lottie/Media Encoder basics.
```
references/expression-library.md
```
— deeper expression cookbook: tuned inertial bounce, all loop variants, advanced wiggle, valueAtTime echoes, seedRandom grids, full rigging + coordinate spaces, MOGRT and Lottie/Bodymovin steps, Media Encoder presets.
```
references/export-recipes.md
```
— full codec/alpha/bitrate matrix, per-platform social specs, step-by-step transparency exports, AME preset cautions.
```
references/performance-triage.md
```
— ordered preview/render/crash flows, preference paths and values, MFR/GPU/disk-cache tuning, pre-render & proxy workflow.
```
references/project-hygiene.md
```
— folder template, naming and label systems, relink/Collect Files/Reduce details, scripting setup.

scripts/batch-rename.jsx

scripts/sequential-offset.jsx

scripts/apply-effect-to-layers.jsx

— ExtendScript automations.

</content>

```
references/expressions.md
```
—— 表达式、绑定、MOGRT、Lottie/Media Encoder基础。
```
references/expression-library.md
```
—— 更深入的表达式手册：优化后的inertial bounce、所有循环变体、高级摆动效果、valueAtTime回声、seedRandom网格、完整绑定+坐标空间、MOGRT和Lottie/Bodymovin步骤、Media Encoder预设。
```
references/export-recipes.md
```
—— 完整的编码/Alpha通道/比特率矩阵、各平台社交媒体规范、带透明通道导出的分步指南、AME预设注意事项。
```
references/performance-triage.md
```
—— 有序的预览/渲染/崩溃排查流程、首选项路径及取值、多帧渲染/GPU/磁盘缓存调优、预渲染及代理工作流。
```
references/project-hygiene.md
```
—— 文件夹模板、命名和标签系统、重新链接/收集文件/精简项目细节、脚本设置。

scripts/batch-rename.jsx

、

scripts/sequential-offset.jsx

、

scripts/apply-effect-to-layers.jsx

—— ExtendScript自动化脚本。

after-effects

Original

Translation

After Effects

After Effects

Routing

导航

Expressions & rigging

表达式与绑定

Export recipes

导出方案

Performance triage

性能优化

Project hygiene

项目规范

Reference files

参考文件