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How to Use Google Flow Storyboard Studio: Script Uploads, Custom Characters & Scenes

A step-by-step tutorial on importing scripts, uploading custom character reference images, inserting scenes, and locking visual consistency in Google Flow.

Nadhebe Editorial Team Nadhebe Editorial Team · · 4 min read
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Minimalist mockup displaying a sequence of three frames on a clean white user interface screen
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Tutorial: Building Pre-Production Storyboards in Google Flow

This tutorial walks through creating a storyboard using Google Flow’s Storyboard Studio (available in Google Labs), from script import and custom character uploads to inserting new scenes and animating via Google Veo.

Step-by-Step Workflow

Step 1: Create a Project and Choose a Style

  • Launch Google Flow and open Storyboard Studio from the tools panel.
  • Select a visual style preset (e.g., 3D Animation, Line Art, or Photorealistic Cinematic).

Step 2: Import and Format the Script

To achieve optimal scene extraction in Google Flow:

  • Upload a plain text (.txt), Markdown (.md), or PDF file into the script pane.
  • Structure script lines using clear scene headers (INT. / EXT.), character tags, and action descriptions.
  • Flow will parse the script automatically into locations, actions, and character cues.
[SCENE 1] EXT. NEON CITY STREET - NIGHT
@Maya stands under the glowing rain-slicked overhang, holding a digital tablet.
CAMERA: Close-up on @Maya's face as neon reflections streak across her visor.

Step 3: Custom Character Upload & Consistency Anchoring

[!TIP] To preserve your own original character designs across all storyboard frames, upload reference images directly into the Assets catalog before rendering panels.

  1. Navigate to the Assets tab in the left sidebar.
  2. Click + Add Asset Profile and select Character.
  3. Upload 1 to 3 front-facing reference photos or concept art drawings of your character.
  4. Assign a unique tag identifier (e.g., @Maya or @DetectiveJohn).
  5. Set baseline visual parameters (hair style, outfit colors, art style weights).

When panel generation runs, Google Flow’s visual encoder pins your uploaded character identity into every scene prompt, eliminating facial drift across camera angles.

Step 4: How to Add & Split Scenes in the Storyboard Timeline

Creators often need to add new visual beats or split long script paragraphs into dedicated camera panels after the initial script parse.

Initial Timeline:  [ Scene 1: Frame A ] ----------> [ Scene 2: Frame B ]
                                            ^
                                     Click (+ Add Scene)
Updated Timeline:  [ Scene 1: Frame A ] -> [ NEW SCENE ] -> [ Scene 2: Frame B ]
  • Adding a New Scene: Hover over the divider between two storyboard panels and click the + Insert Scene icon. You can type a custom prompt or paste a new script excerpt directly into the scene editor.
  • Splitting an Existing Panel: Click on a panel, select Split Scene Frame, and drag the split handle to separate dialogue from action shots.

Step 5: Fix Drift with Manual Tagging

  • Review the generated frames for character drift.
  • If a character’s face or costume shifts, click the frame editor, highlight the character, and tag it with the registered reference profile from your assets catalog.
  • Re-render the frame to lock in visual consistency.

Step 6: Animate via Google Veo

  • For dynamic previews, select target panels and click the Animate toggle.
  • The system sends the layout coordinates to Google’s Veo video model to compile short pre-visualization clips.

Image Metadata

  • Hero Image:
    • Prompt: “Clean minimal UI layout showing three storyboard frame panels with pastel illustrations, white workspace backdrop, daylight”
    • Filename: “storyboard-tutorial-hero.jpg”
    • Alt: “Storyboard panels UI mockup”
  • Supporting Visual 1:
    • Prompt: “Sleek dropdown menu user interface graphic showing style options, pastel color details”
    • Filename: “style-menu-ui.jpg”
    • Alt: “Style menu dropdown interface”
  • Supporting Visual 2:
    • Prompt: “Close-up of a designer glass cup and white notepad on a modern clean table with soft shadows”
    • Filename: “notepad-detail.jpg”
    • Alt: “Designer notepad detail”

Frequently asked questions

How do I upload custom character images into Google Flow Storyboard Studio?

Open the Assets tab in Storyboard Studio, click '+ Add Character Profile', and upload reference PNG or JPEG character photos. Tag the profile with an handle like @Hero to lock that facial structure across rendered frames.

Can I keep my own character consistent across scenes in Google Flow?

Yes. By pinning custom character photos in the Assets tab and referencing them via character tags in script lines, Storyboard Studio enforces visual continuity for faces, clothing, and art styles.

Can I add a new scene into an existing storyboard in Google Flow?

Yes. Hover between any two panel frames on the timeline and click the '+ Insert Scene' button, or add a `[SCENE BREAK]` marker directly into the script editor panel to re-segment the sequence.

What is the best script format for Google Flow Storyboard Studio?

Format scripts using standard scene headings (e.g., `EXT. CITY STREET - NIGHT`), clear action lines, and character tags (`@CharacterName`). Plain text (.txt), Markdown (.md), and PDF uploads are supported.

How do I adjust or split individual scene frames?

Select any frame in the storyboard editor, click 'Split Frame', and specify the exact sentence or camera cut where the new panel should split.

How do I ensure character consistency during complex action sequences?

Use manual character tagging in the frame editor: select the character outline, pick your registered asset profile, and trigger a consistency re-render pass.

Sources & references

  1. [1]Google Flow Tutorials Portal
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