From 675c2a529d4583f2ad7acfe14f00a810261eef5c Mon Sep 17 00:00:00 2001
From: lostdisc <194321775+lostdisc@users.noreply.github.com>
Date: Thu, 13 Mar 2025 12:53:23 -0400
Subject: [PATCH 1/4] Update pipeline_onnx_stable_diffusion.py to remove
 float64

init_noise_sigma was being set as float64 before multiplying with latents, which changed latents into float64 too, which caused errors with onnxruntime since the latter wanted float16.
---
 .../stable_diffusion/pipeline_onnx_stable_diffusion.py          | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion.py b/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion.py
index 9917276e0a1f..b61c61deb0ac 100644
--- a/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion.py
+++ b/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion.py
@@ -383,7 +383,7 @@ def __call__(
         # set timesteps
         self.scheduler.set_timesteps(num_inference_steps)
 
-        latents = latents * np.float64(self.scheduler.init_noise_sigma)
+        latents = latents * self.scheduler.init_noise_sigma
 
         # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature
         # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers.

From 16dba238e583bcd488554e8989a07d11e8a2bf8f Mon Sep 17 00:00:00 2001
From: lostdisc <194321775+lostdisc@users.noreply.github.com>
Date: Thu, 13 Mar 2025 12:56:48 -0400
Subject: [PATCH 2/4] Update pipeline_onnx_stable_diffusion_inpaint.py to
 remove float64

init_noise_sigma was being set as float64 before multiplying with latents, which changed latents into float64 too, which caused errors with onnxruntime since the latter wanted float16.
---
 .../stable_diffusion/pipeline_onnx_stable_diffusion_inpaint.py  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_inpaint.py b/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_inpaint.py
index ddd2e27dedaf..d8d1f49182ae 100644
--- a/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_inpaint.py
+++ b/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_inpaint.py
@@ -483,7 +483,7 @@ def __call__(
         self.scheduler.set_timesteps(num_inference_steps)
 
         # scale the initial noise by the standard deviation required by the scheduler
-        latents = latents * np.float64(self.scheduler.init_noise_sigma)
+        latents = latents * self.scheduler.init_noise_sigma
 
         # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature
         # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers.

From c8b9e2532a108400411035da745bd3ce7ee0dbdc Mon Sep 17 00:00:00 2001
From: lostdisc <194321775+lostdisc@users.noreply.github.com>
Date: Thu, 13 Mar 2025 12:57:34 -0400
Subject: [PATCH 3/4] Update pipeline_onnx_stable_diffusion_upscale.py to
 remove float64

init_noise_sigma was being set as float64 before multiplying with latents, which changed latents into float64 too, which caused errors with onnxruntime since the latter wanted float16.
---
 .../stable_diffusion/pipeline_onnx_stable_diffusion_upscale.py  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_upscale.py b/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_upscale.py
index ef84cdd38b6d..406489810dbd 100644
--- a/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_upscale.py
+++ b/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_upscale.py
@@ -481,7 +481,7 @@ def __call__(
         timesteps = self.scheduler.timesteps
 
         # Scale the initial noise by the standard deviation required by the scheduler
-        latents = latents * np.float64(self.scheduler.init_noise_sigma)
+        latents = latents * self.scheduler.init_noise_sigma
 
         # 5. Add noise to image
         noise_level = np.array([noise_level]).astype(np.int64)

From 6689572a1e65fd682c1389551b65e7e3d289194a Mon Sep 17 00:00:00 2001
From: lostdisc <194321775+lostdisc@users.noreply.github.com>
Date: Thu, 13 Mar 2025 13:18:33 -0400
Subject: [PATCH 4/4] Update pipeline_onnx_stable_diffusion.py with comment for
 previous commit

Added comment on purpose of init_noise_sigma.  This comment exists in related scripts that use the same line of code, but it was missing here.
---
 .../pipelines/stable_diffusion/pipeline_onnx_stable_diffusion.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion.py b/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion.py
index b61c61deb0ac..78f5490eaf24 100644
--- a/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion.py
+++ b/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion.py
@@ -383,6 +383,7 @@ def __call__(
         # set timesteps
         self.scheduler.set_timesteps(num_inference_steps)
 
+        # scale the initial noise by the standard deviation required by the scheduler
         latents = latents * self.scheduler.init_noise_sigma
 
         # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature