From 04b90328c0aa86670cfe5d31612d341e29b5a258 Mon Sep 17 00:00:00 2001
From: AUTOMATIC1111 <16777216c@gmail.com>
Date: Tue, 29 Aug 2023 15:38:05 +0300
Subject: [PATCH] revert SGM noise multiplier change for img2img because it
 breaks hires fix

---
 modules/sd_samplers_kdiffusion.py | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/modules/sd_samplers_kdiffusion.py b/modules/sd_samplers_kdiffusion.py
index a8a2735f4..72c352a6e 100644
--- a/modules/sd_samplers_kdiffusion.py
+++ b/modules/sd_samplers_kdiffusion.py
@@ -144,13 +144,7 @@ class KDiffusionSampler(sd_samplers_common.Sampler):
         sigmas = self.get_sigmas(p, steps)
         sigma_sched = sigmas[steps - t_enc - 1:]
 
-        if opts.sgm_noise_multiplier:
-            p.extra_generation_params["SGM noise multiplier"] = True
-            noise_multiplier = torch.sqrt(1.0 + sigma_sched[0] ** 2.0)
-        else:
-            noise_multiplier = sigma_sched[0]
-
-        xi = x + noise * noise_multiplier
+        xi = x + noise * sigma_sched[0]
 
         if opts.img2img_extra_noise > 0:
             p.extra_generation_params["Extra noise"] = opts.img2img_extra_noise