Dropping latent upscale denoise to 0.2 with the linear_quadratic scheduler
winky9827 · reddit · 2026-11-05
A Redditor shares a hard-won upscale workflow: latent upscale was the only method producing the fine detail they wanted, but it required 0.6+ denoise to avoid leftover noise from latent math.
The fix is the linearquadratic scheduler: it runs the sampler in two phases (linear then quadratic), and the initial linear phase overcomes the added noise. Using the Linear Quadratic Advanced node from the res4lyf pack to shift the crossover inflection point, they dropped denoise all the way to 0.2 with astonishing detail while preserving original structure.
Caveat: they render with Krea 2 Turbo (best at 8 steps), so the second pass uses only 4 steps — any higher adds noise or unwanted details. Full node parameters are shown in the screenshot: bicubic 2.2x upscale, euler sampler, denoise 0.20, inflectionpercent 0.65, cfg 1.0.
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