capacap
3d4283dd43
Linearly decays intensity across the last ~30% of steps and zeroes the final ~15%, so those steps skip the second model call via the existing adjustment==0 fast path. Saves 14-17% wallclock on typical workloads and softens the over-sharpening that showed up at higher step counts. Also adds a per-run stats line logging detail vs. skip counts so the impact of future schedule/threshold tweaks is visible. Includes a mask-activity floor (currently 0.02) as a secondary skip path; not tripping in practice but kept as a safety net for degenerate masks.
ComfyUI-Selective-Sigma-Detailer
A ComfyUI custom sampler that boosts detail only in latent regions that are already dense at the moment its schedule activates. Smooth regions (skies, out-of-focus backgrounds, flat surfaces) are left untouched; busy regions (faces, fabric, foliage) get a sigma-shifted pass that sharpens them.
How it works
- Early sampling steps run unmodified so the model can establish composition.
- On the first step where the schedule becomes active, a density mask is derived from the model's denoised prediction via local latent variance, and then frozen for the rest of the run.
- For every subsequent active step, two denoises are computed (normal, and one at a shifted sigma) and blended per-pixel by the mask.
Cost: 2x model calls on active steps only. Inactive steps are free.
Node
Selective Sigma Detailer (sampling/custom_sampling/samplers)
Wraps a SAMPLER and returns a new SAMPLER. Drop it between your base
sampler (KSamplerSelect, etc.) and SamplerCustom.
Schedule parameters
detail_amount, start, end, bias, exponent, start_offset,
end_offset, fade, smooth, cfg_scale_override control when and how
strongly the detail pass fires, following the same schedule shape as
Detail Daemon.
Mask parameters
variance_kernel— window size for local variance (odd, 3–15). Larger is coarser.mask_blur— smoothing applied after variance. Softens transitions.mask_threshold— values below this are pulled to 0. Higher = stricter targeting.mask_gamma— contrast curve on the mask. >1 sharpens, <1 softens.save_mask_preview— dumps the frozen mask as a PNG to ComfyUI's temp dir.
Credits
Inspired by ComfyUI-Detail-Daemon by Jonseed; the schedule shape used to gate the active window follows the same idea.
License
MIT.