Automatic Sprite Pivot Alignment
Detect the visible character area across animation frames and align them to a shared pivot and canvas size.
For walk, idle, and attack animations, 足元中央 is usually the most stable choice. Bounds center or alpha-weighted centroid may work better for airborne objects and effects.
How it works
- Find the bounds of pixels whose alpha exceeds the selected threshold.
- Calculate each frame’s pivot using the selected mode.
- Calculate a shared canvas that does not crop any frame.
- Reposition every frame around the computed shared pivot.
- Select only the frames you need and save them together as a ZIP.
整列基準
足元中央はキャラクターの最下端と左右中央を基準にするため、地面上のアニメーションに適しています。不透明領域中央はアイコンや回転オブジェクトに、アルファ加重中心は半透明エフェクトに向いています。
Limitations
If shadows, weapons, capes, or other parts extend to the lowest pixels, the detected foot position may shift. Animations with large pose changes may still need manual adjustment after checking the automatic result.