Nodes/ComfyUI-AlchemicaSampler/⚗ AlchemicaKrea Pro (phases + previews)
ComfyUI Node

⚗ AlchemicaKrea Pro (phases + previews)

AlchemicaKrea with two-phase prompts (scene/detail), composition previews, refinement variants and a profile chosen by model + resolution.

By Nessuno76·Created 2 days ago·Updated 2 days ago· 1
⚗ AlchemicaKrea Pro (phases + previews)
  • model
  • positive
  • latent_image
  • positive_dettaglio
  • negative
  • modello_rifinitura
  • opts
  • latent
  • grafico_sigma
  • report
  • seed_usato
◄seed0►
◄profilo▾►
◄modoequilibrato►
◄due_staditrue►
◄ridisegno-1.00►
◄dettaglio0.12►
◄varieta0.60►
◄denoise1.00►
◄cambio_fase-1.00►
◄sfumatura0.00►
◄anteprime0►
◄scelta0►
◄variante_rifinitura0►
Category⚗ AlchemicaMente/sampling

Inputs (20)

NameTypeDefaultDescription
modelMODEL—
positiveCONDITIONINGSCENE prompt (or your only prompt)
latent_imageLATENTAt the final resolution (⚗ Resolution node)
seedINT00–18446744073709550000BASE seed. With previews keep it on 'fixed'
profiloCOMBO(auto) = profile calibrated on this model at the closest resolution
modoCOMBOequilibrato3 options: veloce, equilibrato, massimo dettaglio
due_stadiBOOLEANtrue—
ridisegnoFLOAT-1.00-1–0.95Hand-off sigma between the two stages. -1 = from the profile
dettaglioFLOAT0.120–0.25Micro-relief. 0.12 validated; above 0.2 coloured speckles come back
varietaFLOAT0.600–1.2Noise that creates texture. 0 = deterministic
denoiseFLOAT1.000–11.0 = from scratch. <1 = img2img (no two stages, no previews)
cambio_faseFLOAT-1.00-1–0.99Sigma below which the DETAIL prompt takes over. -1 = where composition is locked (from the profile, ~0.87). Lower = detail weighs less. 0 = off. Acts on skin, fabric, patterns, small objects; NOT on colours or global style (measured: those are decided in the first step together with composition)
sfumaturaFLOAT0.000–0.4Width of the cross-fade between the two prompts. 0 = hard switch (no cost). >0 = gradual blend, costs one extra model call per step inside the band
anteprimeINT00–16N > 0: generates N low-resolution previews (seed, seed+1, ...), up to ~30 s each. Measured: pose and framing match the final image (0.87-0.90); clothing may change. Then set 0 again and pick the number in 'scelta' (choice)
sceltaINT00–255With previews = 0: completes preview number k (uses seed + k)
variante_rifinituraINT00–9999Changes ONLY the second-stage noise: same pose and framing, but face, lettering, jewellery and small objects change. 0 = standard
positive_dettagliooptCONDITIONINGDETAIL prompt (from the ⚗ Two-phase prompt or ⚗ Text node). Disconnected = behaves like AlchemicaKrea
negativeoptCONDITIONING—
modello_rifinituraoptMODELStage 2 with a different model
optsoptALCHEMICA_OPTS—

Outputs (4)

NameTypeDescription
latentLATENT—
grafico_sigmaIMAGE—
reportSTRING—
seed_usatoINT—