video-workbench/projects/2026-06-23-在路上/visual-system/characters/character-transparent-slices-v2-from-anchor-review.md

Character Transparent Slices V2 From Anchor Review

Status

• Review status: accepted by user.
• Scope: repaired transparent slice set derived from the accepted v2 character anchor board.
• Repair reason: the first generated v1 slice set drifted away from the accepted v2 identity.
• Repair strategy: crop each required pose from character-anchor-v2-codex-posture-test.png and remove the local board background.
• Next gated action: proceed to the common style anchor board.

Source

Accepted anchor board:

visual-system/characters/character-anchor-v2-codex-posture-test.png

Preview board:

visual-system/characters/character-transparent-slices-v2-from-anchor-preview.png

Final Alpha PNG Assets

Slice	Final alpha PNG	Source crop
Front	visual-system/characters/character-slice-front-v2-from-anchor.png	visual-system/characters/character-anchor-v2-front-reference-crop-tight.png
Side	visual-system/characters/character-slice-side-v2-from-anchor.png	visual-system/characters/character-anchor-v2-side-reference-crop-tight.png
Back	visual-system/characters/character-slice-back-v2-from-anchor.png	visual-system/characters/character-anchor-v2-back-reference-crop-tight.png
Walk side	visual-system/characters/character-slice-walk-side-v2-from-anchor.png	visual-system/characters/character-anchor-v2-walk-side-reference-crop-tight.png
Walk back	visual-system/characters/character-slice-walk-back-v2-from-anchor.png	visual-system/characters/character-anchor-v2-walk-back-reference-crop-tight.png

Crop Boxes

Crop boxes are from the accepted v2 board in pixel coordinates:

Slice	Crop box
Front	(20, 104, 264, 835)
Side	(276, 104, 474, 835)
Back	(485, 104, 713, 835)
Walk side	(948, 160, 1212, 835)
Walk back	(1228, 120, 1412, 835)

Local Processing Method

This repair did not use new image generation.

Method:

1. Crop each pose from the accepted v2 anchor board.
2. Estimate the local neutral board background from crop borders.
3. Remove border-connected light background.
4. For walking crops, keep the largest connected foreground component to remove adjacent panel bleed.
5. Apply a soft alpha matte.
6. Save as alpha PNG.
7. Build a checkerboard preview for human review.

Processing environment:

C:\Users\wangq\.cache\codex-runtimes\codex-primary-runtime\dependencies\python\python.exe

Validation

Slice	Mode	Size	Transparent pixels	Partial pixels	Opaque pixels	Corner alpha
Front	RGBA	488x1440	247699	33986	421035	[0, 0, 0, 0]
Side	RGBA	396x1452	221077	26806	327109	[0, 0, 0, 0]
Back	RGBA	456x1442	220243	32337	404972	[0, 0, 0, 0]
Walk side	RGBA	470x1158	273011	31410	239839	[0, 0, 0, 0]
Walk back	RGBA	368x1218	161412	20482	266330	[0, 0, 0, 0]

Review Notes

Strengths:

• Identity drift is avoided because every slice is derived directly from the accepted v2 board.
• Front, side, back, walk-side, and walk-back all share the same v2 figure system.
• The walk-side slice preserves the corrected upright walking posture from v2.
• The walk-back slice no longer includes the stray neighboring-panel boot after connected-component cleanup.
• All five final files have alpha channels and transparent corners.

Known limitations:

• Resolution is limited by the 16:9 anchor board cell size.
• The side slice inherits the v2 board's panel crop and keeps the backpack close to the right edge.
• Edge quality is local matte extraction quality, not native transparent rendering.
• These are execution references for small MV figures, not high-resolution hero assets.

Recommendation

Use this v2-from-anchor set if identity fidelity is the priority for small-figure MV shots.

If user accepts this set, the next project step can move to the common style anchor board. If any slice needs repair, repair only that slice and keep the v2-derived method.