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Sequence Frames (Frontier)

Use the Frontier model to generate sequence frame complete images (spritesheet) that can be directly sliced in one go. Unlike 2D Frame Animation, this feature runs in the image generation window, producing a single image arranged in a grid (default 4 columns × 4 rows, total 16 frames), which is then sliced by grid for animation, whereas 2D Frame Animation produces frame-by-frame PNGs + a ready-made AnimationClip.

GUI exclusive feature. "Sequence Frames (Frontier)" is accessed via Editor menu AI > Generate > Generate Sequence Frames (Frontier) to enter the image generation window (Frontier sequence frame mode), underlying reuses Frontier image generation + sequence frame prompt template, currently no independent CLI tool entry.

Getting Started​

Start from GUI​

  1. Menu: AI > Generate > Generate Sequence Frames (Frontier), opens the image generation window in Frontier sequence frame mode.
  2. Enter character action description, and optionally upload character reference image (determines character identity, clothing, color scheme, body type, hairstyle).
  3. After generation, get a spritesheet complete image; slice by 4×4 grid to get 16-frame animation assets.

How It Works​

Multi-Reference Images and Channel Constraints​

Frontier sequence frames supports two types of reference images, priority from high to low:

  1. User-uploaded reference image → Determines character identity and appearance (face shape, hairstyle, clothing, main color), highest priority
  2. Character and action description in text
  3. Layout reference image (knowledge) → Only used for row/column grid, frame alignment and slicing layout; does not reference the character, art style, color scheme or action appearance within it

Default Sequence Frame Configuration (4×4, 16 Frames)​

  • Fixed grid 4 columns × 4 rows = 16 frames, each frame size completely identical, strictly aligned
  • Same character maintains consistent identity across all frames (face shape/hairstyle/clothing/main color does not drift)
  • No text, numbers, grid lines, watermarks or UI elements appear in the image
  • Default pure green background (facilitates subsequent automatic background removal)
  • Output ratio fixed to 1:1
  • Slicing parameters: sliceColumns = 4, sliceRows = 4

Optimization​

Prompt Optimization​

  • Focus on "character + action": Clearly describe the character and the action sequence to be performed (e.g., walking, attacking)
  • Provide character reference image: Ensures character consistency across all frames, avoiding appearance drift
  • If action description is incomplete, model will automatically complete to coherent action sequence suitable for 4×4

Difference from Other Sequence Frame Features​

FeatureEntryOutputUse Case
Sequence Frames (Frontier)GUI Image WindowSingle 4×4 spritesheet complete imageNeed complete image, slice yourself
2D Frame Animationgenerate_sprite_sequenceFrame-by-frame PNG + AnimationClipNeed ready-to-play animation

Notes​

  • ⚠️ GUI exclusive: Currently used via menu AI > Generate > Generate Sequence Frames (Frontier), no independent CLI tool
  • ⚠️ Fixed 4×4 / 16 frames / 1:1 / green screen background: Output is single spritesheet, need to slice by grid yourself
  • ⚠️ Character consistency relies on reference image: Uploading character reference image can significantly reduce inter-frame appearance drift
  • ⚠️ Layout reference image only handles layout: Don't expect it to affect character appearance or art style
  • ⚠️ If you need ready-made frame-by-frame animation clips (AnimationClip), please use 2D Frame Animation