From 100c2478eaba71ab735539fdc00c9d0de49bc224 Mon Sep 17 00:00:00 2001
From: chaObserv <154517000+chaObserv@users.noreply.github.com>
Date: Sun, 20 Jul 2025 11:09:11 +0800
Subject: [PATCH 1/3] Add SamplingPercentToSigma node (#8963)

It's helpful to adjust start_percent or end_percent based on the corresponding sigma.
---
 comfy_extras/nodes_custom_sampler.py | 30 ++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/comfy_extras/nodes_custom_sampler.py b/comfy_extras/nodes_custom_sampler.py
index d17737e1a..d011f433b 100644
--- a/comfy_extras/nodes_custom_sampler.py
+++ b/comfy_extras/nodes_custom_sampler.py
@@ -301,6 +301,35 @@ class ExtendIntermediateSigmas:
 
         return (extended_sigmas,)
 
+
+class SamplingPercentToSigma:
+    @classmethod
+    def INPUT_TYPES(cls) -> InputTypeDict:
+        return {
+            "required": {
+                "model": (IO.MODEL, {}),
+                "sampling_percent": (IO.FLOAT, {"default": 0.0, "min": 0.0, "max": 1.0, "step": 0.0001}),
+                "return_actual_sigma": (IO.BOOLEAN, {"default": False, "tooltip": "Return the actual sigma value instead of the value used for interval checks.\nThis only affects results at 0.0 and 1.0."}),
+            }
+        }
+
+    RETURN_TYPES = (IO.FLOAT,)
+    RETURN_NAMES = ("sigma_value",)
+    CATEGORY = "sampling/custom_sampling/sigmas"
+
+    FUNCTION = "get_sigma"
+
+    def get_sigma(self, model, sampling_percent, return_actual_sigma):
+        model_sampling = model.get_model_object("model_sampling")
+        sigma_val = model_sampling.percent_to_sigma(sampling_percent)
+        if return_actual_sigma:
+            if sampling_percent == 0.0:
+                sigma_val = model_sampling.sigma_max.item()
+            elif sampling_percent == 1.0:
+                sigma_val = model_sampling.sigma_min.item()
+        return (sigma_val,)
+
+
 class KSamplerSelect:
     @classmethod
     def INPUT_TYPES(s):
@@ -887,6 +916,7 @@ NODE_CLASS_MAPPINGS = {
     "FlipSigmas": FlipSigmas,
     "SetFirstSigma": SetFirstSigma,
     "ExtendIntermediateSigmas": ExtendIntermediateSigmas,
+    "SamplingPercentToSigma": SamplingPercentToSigma,
 
     "CFGGuider": CFGGuider,
     "DualCFGGuider": DualCFGGuider,

From a0c0785635a9f4d2da64b58fef063825f386d8da Mon Sep 17 00:00:00 2001
From: comfyanonymous <121283862+comfyanonymous@users.noreply.github.com>
Date: Sat, 19 Jul 2025 22:24:09 -0700
Subject: [PATCH 2/3] Document what the fast_fp16_accumulation is in the
 portable. (#8973)

---
 .ci/windows_base_files/README_VERY_IMPORTANT.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.ci/windows_base_files/README_VERY_IMPORTANT.txt b/.ci/windows_base_files/README_VERY_IMPORTANT.txt
index d46acbcbf..8ab70c890 100755
--- a/.ci/windows_base_files/README_VERY_IMPORTANT.txt
+++ b/.ci/windows_base_files/README_VERY_IMPORTANT.txt
@@ -4,6 +4,9 @@ if you have a NVIDIA gpu:
 
 run_nvidia_gpu.bat
 
+if you want to enable the fast fp16 accumulation (faster for fp16 models with slightly less quality):
+
+run_nvidia_gpu_fast_fp16_accumulation.bat
 
 
 To run it in slow CPU mode:

From 7d627f764c2137d816a39adbc358cb28c1718a47 Mon Sep 17 00:00:00 2001
From: ComfyUI Wiki <contact@comfyui-wiki.com>
Date: Mon, 21 Jul 2025 03:58:35 +0800
Subject: [PATCH 3/3] Update template to 0.1.39 (#8981)

---
 requirements.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/requirements.txt b/requirements.txt
index a7e44095f..8f6a6d112 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 comfyui-frontend-package==1.23.4
-comfyui-workflow-templates==0.1.37
+comfyui-workflow-templates==0.1.39
 comfyui-embedded-docs==0.2.4
 torch
 torchsde