How to Use Universes for Consistent AI Videos in LongStories
How to Use Custom Universes for Consistent AI Videos in LongStories
Who this is for
Creators who want every video in a series or brand to share the same visual style, world rules, and aesthetic — without manually re-prompting the look each time.
Overview
A universe in LongStories is a style container. Every video you generate inside it inherits the same visual language: consistent lighting, color palette, tone, and world logic. Without a universe, each video risks looking like it came from a different project entirely.
This guide walks through selecting a custom universe and generating a video inside it.
Step-by-step workflow
1. Start a new video
- Log in to LongStories.
- Click Create New Video in the sidebar.
2. Change the universe
- On the create screen, click Change Universe.
- Browse the available universes — Your Universes (the ones you've built, like a Lego City universe), the built-in LongStories Universes, and Featured Community Universes.
- Use the Search universes box if you've accumulated many.
- Select the one that fits your project.
3. Write your prompt inside the universe
With the universe selected, describe your scene or story. Be descriptive but focused:
Example prompt:
"A clumsy rooftop superhero faces a giant Lego robot attacking the city. Heroes work together to calm the robot using playful city builds."
Because the video is tied to the Lego universe, every shot inherits that visual style automatically — you don't describe the style in the prompt at all. The prompt handles story; the universe handles style.
4. Adjust video and animation settings
Before generating, tune the output to match the run:
Setting | What it does |
|---|---|
Animation | Storyboard (images only) for planning, Fast Animation for quick drafts, Pro Animation for final quality |
Multi-cut | Turn off for fewer cuts and simpler scene flow |
Remove watermark | Clean final render — available on Creator plans and above |
Draft pass? Fast Animation, watermark on. Final deliverable? Pro Animation, watermark off.
5. Generate the video
- Click Generate Video, review the summary, and confirm.
- Rendering usually takes 4–15 minutes — you'll get an email when it's ready.
- The finished video is composed of shots that all share the visual style your universe defines.
When to always use a universe
Use a custom universe whenever:
- You're building a series — episodes need the same look and feel.
- You need brand consistency — every marketing video should match.
- You're developing an identifiable IP world — noir city, anime school, Lego city.
Without a universe, prompts produce varied, disconnected results. With one, your output becomes a cohesive body of work.
Example use case
You're running a YouTube channel built around a Lego-style animated world. You create a Lego universe once. Every video — action sequences, character intros, lore drops — is generated inside that same universe. Your channel develops a recognizable identity without you re-specifying the art style every time.
Pro tips for filmmakers
- Name your universes clearly — you'll accumulate them fast. "Lego City – Bright", "Neo-Noir Alley – Dark", "Corporate Explainer – Clean".
- Prompt handles story, universe handles style. Keep that separation clean for best results.
- Test a new universe before committing it to a series — a short ~15-second clip (or a quick storyboard run) reveals whether the style is locked in.
Watch the tutorial
How to Use Custom Universes for Consistent AI Videos in LongStories (YouTube)
Updated on: 11/08/2026
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