Wan SCAIL-2 adds segmentation control with better auto-extend and less color shift

External_Trainer_213 · reddit · 2026-07-25

This post shares an update to a Wan SCAIL-2 segmentation-control workflow.

What changed

The author says SCAIL Auto Extend has become the favorite sampler
It appears to reduce color shifts
It also no longer needs the separate Color Match option because that is now integrated

Features in the workflow

Image Analyzer
LoRA support
Interpolate / Upscale / Color Match
Color correction
Image sharpener
Sage Attention
Two sampler choices
Background remover to preserve the source video background
SCAIL-2 Identity Tracker
Optional alternate audio input
Input-video interpolation

Usage notes

For multi-character scenes, the author recommends leaving object indices blank, switching the tracker to Point mode, and clicking characters directly in the image. Box mode can work, but may fail when more people are present. The workflow is framed as useful but not perfect, with seed changes or sampler switches often fixing issues.

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Wan SCAIL-2 adds segmentation control with better auto-extend and less color shift

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