ComfyUI Node
Eric Krea2 Hybrid Sigma Handoff
A ComfyUI node in Eric/Krea2 with 10 inputs and 1 output.
Eric Krea2 Hybrid Sigma Handoff
- sampling
◄s1_hybrid_handoff0.65►
◄s1_sde_hi1.00►
◄s1_sde_lo0.00►
◄s2_hybrid_handoff0.00►
◄s2_sde_hi1.00►
◄s2_sde_lo0.00►
◄s3_hybrid_handoff0.00►
◄s3_sde_hi1.00►
◄s3_sde_lo0.00►
◄churn_formrf►
CategoryEric/Krea2
Inputs (10)
| Name | Type | Default | Description |
|---|---|---|---|
| s1_hybrid_handoff | FLOAT | 0.650–1 | Stage 1 lcm-hybrid handoff, in sigma. The lcm head runs until the trajectory reaches this sigma; the tail (deis_3m for lcm_hybrid, res_2m for lcm_hybrid2) takes over from the first step at or below it. Same value = same switch point on every schedule, step count and shift - unlike s1_hybrid_steps, which it replaces when > 0. 0 = off (use s1_hybrid_steps). 0.65 = 8 of 12 lcm steps on linear / simple (0.70 = 7). Higher values switch earlier (longer tail): more fine detail and texture, at the possible expense of composition and correct drawing. Lower values give more lcm steps: cleaner, more correct structure, softer detail. Rough guide on 12 linear steps: ~0.78 detailed, 0.65 balanced, 0.45-0.55 clean - the right point depends on the subject (architecture / glass / hands tend to want lower, textured or atmospheric scenes can take higher). The console prints the resulting step split. |
| s1_sde_hi | FLOAT | 1.000–1 | SDE band TOP (sigma) for stage 1. eta's churn is applied only on steps whose NEXT sigma lies inside [s1_sde_lo, s1_sde_hi]; outside it the sampler runs deterministic. 1.0 / 0.0 = whole window. Rough Krea2 guide: sigma 1.0-0.5 = composition, 0.5-0.15 = form and detail, below = micro texture. Does nothing at eta 0, and for euler / lcm / er_sde; on the lcm hybrids it gates the tail sampler only. The console shows how many steps churned. |
| s1_sde_lo | FLOAT | 0.000–1 | SDE band BOTTOM (sigma) for stage 1. eta's churn is applied only on steps whose NEXT sigma lies inside [s1_sde_lo, s1_sde_hi]; outside it the sampler runs deterministic. 1.0 / 0.0 = whole window. Rough Krea2 guide: sigma 1.0-0.5 = composition, 0.5-0.15 = form and detail, below = micro texture. Does nothing at eta 0, and for euler / lcm / er_sde; on the lcm hybrids it gates the tail sampler only. The console shows how many steps churned. |
| s2_hybrid_handoff | FLOAT | 0.000–1 | Stage 2 lcm-hybrid handoff, in sigma. The lcm head runs until the trajectory reaches this sigma; the tail (deis_3m for lcm_hybrid, res_2m for lcm_hybrid2) takes over from the first step at or below it. Same value = same switch point on every schedule, step count and shift - unlike s2_hybrid_steps, which it replaces when > 0. 0 = off (use s2_hybrid_steps). Refine windows usually start at sigma 0.5-0.76 - a handoff above the window start gives 1 lcm step. Higher values switch earlier (longer tail): more fine detail and texture, at the possible expense of composition and correct drawing. Lower values give more lcm steps: cleaner, more correct structure, softer detail. Rough guide on 12 linear steps: ~0.78 detailed, 0.65 balanced, 0.45-0.55 clean - the right point depends on the subject (architecture / glass / hands tend to want lower, textured or atmospheric scenes can take higher). The console prints the resulting step split. |
| s2_sde_hi | FLOAT | 1.000–1 | SDE band TOP (sigma) for stage 2. eta's churn is applied only on steps whose NEXT sigma lies inside [s2_sde_lo, s2_sde_hi]; outside it the sampler runs deterministic. 1.0 / 0.0 = whole window. Rough Krea2 guide: sigma 1.0-0.5 = composition, 0.5-0.15 = form and detail, below = micro texture. Does nothing at eta 0, and for euler / lcm / er_sde; on the lcm hybrids it gates the tail sampler only. The console shows how many steps churned. |
| s2_sde_lo | FLOAT | 0.000–1 | SDE band BOTTOM (sigma) for stage 2. eta's churn is applied only on steps whose NEXT sigma lies inside [s2_sde_lo, s2_sde_hi]; outside it the sampler runs deterministic. 1.0 / 0.0 = whole window. Rough Krea2 guide: sigma 1.0-0.5 = composition, 0.5-0.15 = form and detail, below = micro texture. Does nothing at eta 0, and for euler / lcm / er_sde; on the lcm hybrids it gates the tail sampler only. The console shows how many steps churned. |
| s3_hybrid_handoff | FLOAT | 0.000–1 | Stage 3 lcm-hybrid handoff, in sigma. The lcm head runs until the trajectory reaches this sigma; the tail (deis_3m for lcm_hybrid, res_2m for lcm_hybrid2) takes over from the first step at or below it. Same value = same switch point on every schedule, step count and shift - unlike s3_hybrid_steps, which it replaces when > 0. 0 = off (use s3_hybrid_steps). See s2. Higher values switch earlier (longer tail): more fine detail and texture, at the possible expense of composition and correct drawing. Lower values give more lcm steps: cleaner, more correct structure, softer detail. Rough guide on 12 linear steps: ~0.78 detailed, 0.65 balanced, 0.45-0.55 clean - the right point depends on the subject (architecture / glass / hands tend to want lower, textured or atmospheric scenes can take higher). The console prints the resulting step split. |
| s3_sde_hi | FLOAT | 1.000–1 | SDE band TOP (sigma) for stage 3. eta's churn is applied only on steps whose NEXT sigma lies inside [s3_sde_lo, s3_sde_hi]; outside it the sampler runs deterministic. 1.0 / 0.0 = whole window. Rough Krea2 guide: sigma 1.0-0.5 = composition, 0.5-0.15 = form and detail, below = micro texture. Does nothing at eta 0, and for euler / lcm / er_sde; on the lcm hybrids it gates the tail sampler only. The console shows how many steps churned. |
| s3_sde_lo | FLOAT | 0.000–1 | SDE band BOTTOM (sigma) for stage 3. eta's churn is applied only on steps whose NEXT sigma lies inside [s3_sde_lo, s3_sde_hi]; outside it the sampler runs deterministic. 1.0 / 0.0 = whole window. Rough Krea2 guide: sigma 1.0-0.5 = composition, 0.5-0.15 = form and detail, below = micro texture. Does nothing at eta 0, and for euler / lcm / er_sde; on the lcm hybrids it gates the tail sampler only. The console shows how many steps churned. |
| churn_form | COMBO | rf | How eta's per-step noise is injected (all stages). rf: rectified-flow split (as ComfyUI euler_ancestral_RF) - keeps the latent's signal level matched to the sigma the model is told. ve: the classic k-diffusion split (Ultra's behaviour before 2026-10-25) - over-weights signal on flow models (~2% at eta 0.3, ~20% at eta 1), which shows as burnt contrast at high eta. Default rf: in the 2026-10-23 res_2m sweep rf never clipped (all cells <1%) while ve reached 13-60% at eta 0.7-1.0. eta numbers are not interchangeable between the two. |
Outputs (1)
| Name | Type | Description |
|---|---|---|
| sampling | KREA2_SAMPLING | — |