diff --git a/api/onnx_web/diffusers/patches/scheduler.py b/api/onnx_web/diffusers/patches/scheduler.py
index 643f5bf1..a7c10957 100644
--- a/api/onnx_web/diffusers/patches/scheduler.py
+++ b/api/onnx_web/diffusers/patches/scheduler.py
@@ -6,15 +6,18 @@ from torch import FloatTensor, Tensor
 
 
 class SchedulerPatch:
-    scheduler: Any
+    wrapped: Any
 
     def __init__(self, scheduler):
-        self.scheduler = scheduler
+        self.wrapped = scheduler
+
+    def __getattr__(self, attr):
+        return getattr(self.wrapped, attr)
 
     def step(
         self, model_output: FloatTensor, timestep: Tensor, sample: FloatTensor
     ) -> DDIMSchedulerOutput:
-        result = self.scheduler.step(model_output, timestep, sample)
+        result = self.wrapped.step(model_output, timestep, sample)
 
         white_point = 0
         black_point = 8
@@ -22,7 +25,7 @@ class SchedulerPatch:
         direction = "horizontal"
 
         mirrored_latents = mirror_latents(
-            result.prev_sample, black_point, white_point, center_line, direction
+            result.prev_sample, white_point, black_point, center_line, direction
         )
 
         return DDIMSchedulerOutput(
@@ -33,14 +36,14 @@ class SchedulerPatch:
 
 def mirror_latents(
     latents: np.ndarray,
-    black_point: int,
     white_point: int,
+    black_point: int,
     center_line: int,
     direction: Literal["horizontal", "vertical"],
 ) -> np.ndarray:
-    gradient = np.linspace(1, 0, white_point - black_point).astype(np.float32)
+    gradient = np.linspace(1, 0, black_point - white_point).astype(np.float32)
     gradient = np.pad(
-        gradient, (black_point, center_line - white_point), mode="constant"
+        gradient, (white_point, center_line - black_point), mode="constant"
     )
     gradient = np.reshape([gradient, np.flip(gradient)], -1)
     gradient = np.expand_dims(gradient, (0, 1, 2))
diff --git a/api/tests/test_diffusers/test_scheduler.py b/api/tests/test_diffusers/test_scheduler.py
index 30e6d34b..0439722d 100644
--- a/api/tests/test_diffusers/test_scheduler.py
+++ b/api/tests/test_diffusers/test_scheduler.py
@@ -24,12 +24,12 @@ class SchedulerPatchTests(unittest.TestCase):
                 ],
             ]
         )
-        black_point = 0
-        white_point = 1
+        white_point = 0
+        black_point = 1
         center_line = 2
         direction = "horizontal"
         mirrored_latents = mirror_latents(
-            latents, black_point, white_point, center_line, direction
+            latents, white_point, black_point, center_line, direction
         )
         assert np.array_equal(mirrored_latents, latents)
 
@@ -41,12 +41,12 @@ class SchedulerPatchTests(unittest.TestCase):
                 ],
             ]
         )
-        black_point = 0
-        white_point = 1
+        white_point = 0
+        black_point = 1
         center_line = 3
         direction = "vertical"
         mirrored_latents = mirror_latents(
-            latents, black_point, white_point, center_line, direction
+            latents, white_point, black_point, center_line, direction
         )
         assert np.array_equal(
             mirrored_latents,