Avatar tools document the whole chain
The avatar video tools document nearly every step. Synthesia has a page on each of the seven; D-ID and Colossyan answer six of the seven in short articles; HeyGen's cover the script, avatar, voice, download and share page. From 4 source pages, read 2026-09-25; no maker pays to be listed.
Their product is a presenter reading a script, so every step from script to download sits inside one editor and gets its own article.
Their gap is the drama's hardest step. Colossyan has no page on changing one shot; D-ID's answer is to reopen a finished video as a new draft.
For a series narrated by one host, that completeness is worth more than a stronger model.
| Tool | Page | What it covers |
|---|---|---|
| Synthesia | How do I manage scenes in Synthesia? | Adding, copying and replacing scenes to give a video its structure |
| D-ID | How do I add new scenes to my video? | Scenes as slides, each with its own avatar, script and visuals |
| Colossyan | Script | The script editor, with paragraphs and pauses |
| HeyGen | How to Write Scripts in the AI Studio | Adding, editing and previewing the script for each scene |
Inclusion rule. Readings from the map used on this page. Order. The order the text takes them in.
1From the pages themselves
Learn how to add, copy, and replace scenes in Synthesia to structure your video's beginning, middle, and end.
Synthesia Knowledge Base
Scenes let you build videos with multiple slides — each with its own avatar, script, and visuals.
D-ID Help Center
This guide provides an overview of the key features in the Colossyan Script Editor, designed to streamline your video creation process.
Colossyan Help Center
Learn how to add, edit, and preview scripts in HeyGen to create polished, professional videos with ease.
HeyGen Help Center
- How do I manage scenes in Synthesia?Adding, copying and replacing scenes to give a video its structure
- How do I add new scenes to my video?Scenes as slides, each with its own avatar, script and visuals
- ScriptThe script editor, with paragraphs and pauses
- How to Write Scripts in the AI StudioAdding, editing and previewing the script for each scene
Tools on this page: Synthesia · D-ID · Colossyan · HeyGen
2The same step, documented elsewhere
Set beside “Avatar tools document the whole chain”, two passages from the guides SceneMixer publishes about its own pipeline:
SceneMixer turns a novel into a watchable short-drama series in one pipeline: upload the novel (Chinese or English) → AI extracts characters, scenes, and an episode-by-episode structure → generates consistent character and scene art → writes storyboard scripts → renders video segment by segment (16:9 by default, 9:16 in one setting) → composites full episodes.
SceneMixer, Turn a Novel into a Video Series with AI (read 2026-10-13)
It locks when you continue, because it shapes every character sheet, scene and video.
SceneMixer, Custom Visual Style: How to Write Your Own Look — “Can I change the style after step 1?” (read 2026-10-13)